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2/28/2017

CFDnewspaper.com Edition 09 2017

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CFDnewspaper.com
26 February 2017
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Science Environment Technology Art & Entertainment Education #cfd #openfoam
Dakota - OpenFOAM Coupling
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Onur Paca
thumbnail rotorbit­.blogspot­.com - Introduction In this post, the coupling of an OpenFOAM (v 4.0) simulation and Dakota (v6.4) optimization software will be discussed. The optimization goal is to find the angle-of-attack (AoA) value...
A finite volume shock‐capturing solver of the fully coupled shallow water‐sediment equations
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - This paper describes a numerical solver of well-balanced, 2D depth-averaged shallow water-sediment equations. The equations permit variable horizontal fluid density and are designed to model water-...
An accurate pressure–velocity decoupling technique for semi‐implicit rotational projection methods
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - In this paper, an accurate semi-implicit rotational projection method is introduced to solve the Navier–Stokes equations for incompressible flow simulations. The accuracy of the fractional step pro...
Mono‐block and non‐matching multi‐block structured mesh adaptation based on aerodynamic functional total derivatives for RANS flow
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - An enhanced goal-oriented mesh adaptation method is presented based on aerodynamic functional total derivatives with respect to mesh nodes in a Reynolds-Averaged Navier-Stokes (RANS) finite-volume ...
Thermique Instationnaire
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CFDynamics Journal
www­.eurocfd­.com - La mécanique des fluides est souvent associé aux transferts de chaleur. Tout simplement parce que les fluides transportent de la chaleur d’un point à un autre sous l’impulsion d’actions physiques n...
Compact high order finite volume method on unstructured grids III: Variational reconstruction
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CFDynamics Journal
www­.sciencedirect­.com - This paper presents a variational reconstruction for the high order finite volume method in solving the two-dimensional Navier–Stokes equations on arbitrary unstructured grids. In the variational r...
Spectral imbalance in the inertial range dynamics of decaying rotating turbulence
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CFDynamics Journal
link­.aps­.org - Direct numerical simulations of homogeneous decaying turbulence with background rotation show the existence of a systematic and significant imbalance between the non-linear energy cascade to small ...
Viscoelastic Drag Forces and Crossover from No-Slip to Slip Boundary Conditions for Flow near Air-Water Interfaces
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CFDynamics Journal
link­.aps­.org - The “free” water surface is generally prone to contamination with surface impurities, be they surfactants, particles, or other surface active agents. The presence of such impurities can modify flow...
CFD Review | EnSight Announces Upgrade to EnSight 10.2
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CFDynamics Journal
www­.cfdreview­.com - About EnSight EnSight is a visualization software program designed by Computational Engineering International, Inc. (CEI, Inc.) in Apex, North Carolina. Founded in 1994, the employee-owned company ...
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2/28/2017

CFDnewspaper.com Edition 08 2017

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Published by
CFDnewspaper.com
19 February 2017
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Science Environment Technology Education Art & Entertainment #cfd #openfoam
Survey Results: Best 3-D Pan, Zoom, & Rotate
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CFDynamics Journal
thumbnail blog­.pointwise­.com - We asked “Which software product has the most intuitive 3-D pan, zoom, and rotate tools, in your opinion.?” The results are in and you like SOLIDWORKS the best. This highly unscientific poll (can y...
An ALE approach to mechano‐chemical processes in fluid–structure interactions
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Mathematical modeling and simulation of fluid–structure interaction problems are in the focus of research already for a longer period. However, taking into account also chemical reactions, leading ...
Improving the convergence behaviour of a fixed‐point‐iteration solver for multiphase flow in porous media
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - A new method to admit large Courant numbers in the numerical simulation of multiphase flow is presented. The governing equations are discretized in time using an adaptive θ-method. However, the use...
Monotone nonlinear finite‐volume method for nonisothermal two‐phase two‐component flow in porous media
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - This article presents a new nonlinear finite-volume scheme for the nonisothermal two-phase two-component flow equations in porous media. The face fluxes are approximated by a nonlinear two-point fl...
A high‐order backward forward sweep interpolating algorithm for semi‐Lagrangian method
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Conventional semi-Lagrangian methods often suffer from poor accuracy and imbalance problems of advected properties because of low-order interpolation schemes used and/or inability to reduce both di...
Marangoni Bursting: Evaporation-Induced Emulsification of Binary Mixtures on a Liquid Layer
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CFDynamics Journal
thumbnail link­.aps­.org - Adjusting the wetting properties of water through the addition of a miscible liquid is commonly used in a wide variety of industrial processes involving interfaces. We investigate experimentally th...
Scale-dependent colocalization in a population of gyrotactic swimmers
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CFDynamics Journal
link­.aps­.org - We study the small scale clustering of gyrotactic swimmers transported by a turbulent flow, when the intrinsic variability of the swimming parameters within the population is considered. By means o...
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2/28/2017

CFDnewspaper.com Edition 07 2017

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Published by
CFDnewspaper.com
12 February 2017
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Science Technology Environment Art & Entertainment World #openfoam #cfd
A finite volume shock‐capturing solver of the fully coupled shallow water‐sediment equations
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CFDynamics Journal
thumbnail onlinelibrary­.wiley­.com - This paper describes a numerical solver of well-balanced, 2D depth-averaged shallow water-sediment equations. The equations permit variable horizontal fluid density and are designed to model water-...
Statistical calibration via Gaussianization in hot-wire anemometry
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CFDynamics Journal
thumbnail link­.springer­.com - A statistical method is introduced, that isbased on Gaussianization to estimate the nonlinear calibration curve of a hot-wire probe, relating the input flow velocity to the output (measured) voltag...
Call for abstracts (University poster session at the European ATC, June 26-28, 2017 in Frankenthal, Germany)
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CFDynamics Journal
thumbnail www­.altairuniversity­.com - Altair invites you to submit an abstract of your project work with the Altair solutions for the poster session of the 9th European ATC, from June 26-28, 2017 in Frankenthal, Germany. The academic A...
A Finite Volume scheme for solving Anisotropic Diffusion on ALE‐AMR grids
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CFDynamics Journal
thumbnail onlinelibrary­.wiley­.com - In the context of High Energy Density Physics (HEDP) and more precisely in the field of laser plasma interaction, Lagrangian schemes are commonly used. The lack of robustness due to strong grid def...
On the Distribution and Scaling of Convective Wavespeeds in the Shear Layers of Heated Supersonic Jets
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CFDynamics Journal
thumbnail link­.springer­.com - The noise generated by supersonic plumes is of growing concern given the enormous peak noise intensity radiated by tactical aircraft engines. A key component of this noise is the enhanced radiation...
Non-deteriorating time domain numerical algorithms for Maxwell's electrodynamics
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CFDynamics Journal
www­.sciencedirect­.com - The Huygens' principle and lacunae can help construct efficient far-field closures for the numerical simulation of unsteady waves propagating over unbounded regions. Those closures can be either st...
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2/28/2017

CFDnewspaper.com Edition 06 2017

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Published by
CFDnewspaper.com
05 February 2017
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Science Environment Technology Art & Entertainment World #openfoam #cfd
SPH simulation of oblique shocks in compressible flows
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - The Lagrangian smoothed particle hydrodynamics (SPH) method is used to simulate shock waves in inviscid, supersonic (compressible) flow. It is shown for the first time that the fully Lagrangian SPH...
An efficient front‐tracking method for simulation of multi‐density bubbles
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - In this article, a masked bubble strategy is proposed using the front-tracking method when simulation of multi-density bubbles to reduce remarkably the computational cost from both the RAM usage an...
A coupled continuous and discontinuous finite element method for the incompressible flows
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - In this paper, we develop a coupled continuous Galerkin and discontinuous Galerkin finite element method based on a split scheme to solve the incompressible Navier–Stokes equations. In order to use...
Multi‐scale time integration for transient conjugate heat transfer
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - The quasi-steady assumption is commonly adopted in existing transient fluid–solid-coupled convection–conduction (conjugate) heat transfer simulations, which may cause non-negligible errors in certa...
Decompression Tank Simulation
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FetchCFD
thumbnail fetchcfd­.com - Decompression of a tank internally pressurised with water is performed using OpenFOAM's sonicLiquidFoam solver. OpenFOAM simulation result files are also attached.
This Week in CFD
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CFDynamics Journal
thumbnail blog­.pointwise­.com - All About MSC The big news in the CAE business this week is MSC Software’s acquisition by Hexagon AB for US$834 million. MSC is one of the most storied names in the CAE business making its future v...
Internal flow measurements of drop impacting a solid surface
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CFDynamics Journal
thumbnail link­.springer­.com - Understanding the fundamental physical process involved in drop impacts is important for a variety of engineering and scientific applications. Despite exhaustive research efforts on the dynamics of...
CFD Review | CFD Simulation Contributes to New Heart Health Metric
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CFDynamics Journal
www­.cfdreview­.com - "Physicians and engineers don't interact as often as they should and that creates a knowledge gap that can be closed with this type of collaborative research," Harfi said. "Computational fluid dyna...
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2/28/2017

CFDnewspaper.com Edition 05 2017

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Published by
CFDnewspaper.com
29 January 2017
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Science Environment Technology World Stories Art & Entertainment #cfd #openfoam
Numerical analysis of conservative unstructured discretisations for low Mach flows
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Unstructured meshes allow easily representing complex geometries and to refine in regions of interest without adding control volumes in unnecessary regions. However, numerical schemes used on unstr...
GPU‐accelerated direct numerical simulations of decaying compressible turbulence employing a GKM‐based solver
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Gas Kinetic Method-based flow solvers have become popular in recent years owing to their robustness in simulating high Mach number compressible flows. We evaluate the performance of the newly devel...
NASA Technical Reports Server (NTRS) - Wind Tunnel Interference Effects on Tilt Rotor Testing Using Computational Fluid Dynamics
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Arsalan Khan, M.Sc.
ntrs­.nasa­.gov - Wind Tunnel Interference Effects on Tilt Rotor Testing Using Computational Fluid Dynamics NTRS Full-Text: Click to View [PDF Size: 7.5 MB] Author and Affiliation: Koning, Witold J. F. (Science and ...
Stabilized mixed three‐field formulation for a generalized incompressible Oldroyd‐B model
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - This paper presents a generalization of the incompressible Oldroyd-B model based on a thermodynamic framework within which the fluid can be viewed to exist in multiple natural configurations. The r...
This Week in CFD
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CFDynamics Journal
thumbnail blog­.pointwise­.com - Reading & Listening If you read nothing else in this blog post, check out these two links. Mentor Graphics’ Keith Hanna waxes poetic with CFD If, a CFD-themed version of Kipling’s “If…” The Talking...
Anisotropic slope limiting for discontinuous Galerkin methods
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CFDynamics Journal
thumbnail onlinelibrary­.wiley­.com - In this paper, we present an anisotropic version of a vertex-based slope limiter for discontinuous Galerkin methods. The limiting procedure is carried out locally on each mesh element utilizing the...
Phase Matching Using the Linear Electro-Optic Effect
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CFDynamics Journal
link­.aps­.org - Phase matching is a necessary condition for achieving high-efficiency optical-frequency conversion. To date, practical means of accomplishing phase matching in homogeneous crystals remain limited, ...
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2/28/2017

CFDnewspaper.com Edition 04 2017

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Published by
CFDnewspaper.com
22 January 2017
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Science Technology Environment Art & Entertainment Business Education #openfoam #cfd
The Fifth Symposium on OpenFOAM in Wind Energy (SOWE 2017)
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MeteoPole
windbench­.net - The Fifth Symposium on OpenFOAM® in Wind Energy (SOWE 2017) is hosted by the Department of Wind Energy at CENER (National Renewable Energy Centre of Spain). As in the previous editions, the symposi...
An ALE approach to mechano‐chemical processes in fluid–structure interactions
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Mathematical modeling and simulation of fluid–structure interaction problems are in the focus of research already for a longer period. However, taking into account also chemical reactions, leading ...
A combined level set/ghost cell immersed boundary representation for floating body simulations
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - A six degrees of freedom (6DOF) algorithm is implemented in the open-source CFD code REEF3D. The model solves the incompressible Navier–Stokes equations. Complex free surface dynamics are modeled w...
Monotone nonlinear finite‐volume method for nonisothermal two‐phase two‐component flow in porous media
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - This article presents a new nonlinear finite-volume scheme for the nonisothermal two-phase two-component flow equations in porous media. The face fluxes are approximated by a nonlinear two-point fl...
Official Release of SU2 v5.0
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SU2
su2­.stanford­.edu - A primary new feature of SU2 v5.0 is an extended Python module (wrapper) developed in collaboration with the Multiphysics and Turbulent Flows Control Lab at University of Liège. The goal of the Pyt...
Thermo‐hydrodynamic‐mechanical multiphase flow model for CO2 sequestration in fracturing porous media
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CFDynamics Journal
thumbnail onlinelibrary­.wiley­.com - In this paper we introduce a fully coupled thermo-hydrodynamic-mechanical computational model for multiphase flow in a deformable porous solid, exhibiting crack propagation due to fluid dynamics, w...
An Evolve‐Then‐Filter Regularized Reduced Order Model For Convection‐Dominated Flows
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CFDynamics Journal
thumbnail onlinelibrary­.wiley­.com - In this paper, we propose a new evolve-then-filter reduced order model (EF-ROM). This is a regularized ROM (Reg-ROM), which aims to add numerical stabilization to proper orthogonal decomposition (P...
Effect of Bubble Injection Pattern on the Bubble Size Distribution in a Gas-Solid Fluidized Bed
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CFDynamics Journal
thumbnail link­.springer­.com - Three different bubble injection patterns including uniform, center oriented and corner oriented injection patterns over the gas distributor have been studied using a discrete bubble model in a 2-D...
Vector-Resonance-Multimode Instability
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CFDynamics Journal
link­.aps­.org - The modulation and multimode instabilities are the main mechanisms which drive spontaneous spatial and temporal pattern formation in a vast number of nonlinear systems ranging from biology to laser...
Analysis of flame acceleration in open or vented obstructed pipes
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CFDynamics Journal
link­.aps­.org - While flame propagation through obstacles is often associated with turbulence and/or shocks, Bychkov et al. [V. Bychkov et al., Phys. Rev. Lett. 101, 164501 (2008)] have revealed a shockless, conce...
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2/28/2017

CFDnewspaper.com Edition 03 2017

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Published by
CFDnewspaper.com
15 January 2017
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Science Environment Technology Art & Entertainment #cfd #openfoam
Computational Fluid Dynamics Analysis of a PPV Fan - Fire Product Search
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Fire Product Search
thumbnail www­.fireproductsearch­.com - Performance data of modern a Positive Pressure Ventilation (PPV) Fan differs from manufacturer to manufacturer although motor size and impeller diameter is nearly same. This causes uncertainty amon...
A rotating reference frame‐based lattice Boltzmann flux solver for simulation of turbomachinery flows
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - In this paper, the newly developed lattice Boltzmann flux solver (LBFS) is developed into a version in the rotating frame of reference for simulation of turbomachinery flows. LBFS is a finite volum...
Turbulence modelling and role of compressibility on oil spilling from a damaged double hull tank
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - The viscosity plays an important role, and a multiphase solver is necessary to numerically simulate the oil spilling from a damaged double hull tank (DHT). However, it is uncertain whether turbulen...
Optimization of bioreactor operating conditions using computational fluid dynamics techniques
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Can. J. Chem. Eng.
thumbnail onlinelibrary­.wiley­.com - To determine the mesh size and total simulation time, pressure values were collected at the reactor inlet duct, and the average turbulent kinetic energy was calculated for the whole reactor. Veloci...
OpenFOAM for Windows 10
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(((Alex)))
thumbnail openfoam­.org - The packaged distributions of OpenFOAM for Ubuntu 14.04LTS can now be installed directly on Microsoft Windows 10 using Bash on Ubuntu on Windows. Bash on Ubuntu on Windows provides a full compatibi...
Modeling of Heat Transfer in High Voltage Equipment using OpenFOAM
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Engineering Daily
directory­.engineeringdaily­.net - Modeling of Heat Transfer in High Voltage Equipment using OpenFOAM Posted: 1/8/2017 Chemical Engineering
Die Face Design Solution Cuts Tooling Development Time > ENGINEERING.com
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CFDynamics Journal
thumbnail www­.engineering­.com - Image shows the part geometry (green), addendum geometry (yellow), and binder (blue) that needs to be optimized in the die by an engineer to ensure a part is stamped properly. (Image courtesy of ES...
This Week in CFD
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CFDynamics Journal
thumbnail blog­.pointwise­.com - Software Tecplot released Tecplot 360 2017 for CFD visualization including a Python API. You can read more about PyTecplot on the company’s blog. OpenVSP 3.10.0, the parametric aircraft geometry to...
Real-time micro-modelling of city evacuations
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CFDynamics Journal
thumbnail link­.springer­.com - A methodology to integrate geographical information system (GIS) data with large-scale pedestrian simulations has been developed. Advances in automatic data acquisition and archiving from GIS datab...
Contrib/swak4Foam - OpenFOAMWiki
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CFDynamics Journal
openfoamwiki­.net - A library that combines the functionality of groovyBC and funkySetFields: it offers the user the possibility to specify expressions involving the fields and evaluates them. This library offers a nu...
Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop
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CFDynamics Journal
link­.aps­.org - We examine both theoretically and experimentally the breakup of a pendant drop loaded with an insoluble surfactant. The experiments show that a significant amount of surfactant is trapped in the re...
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2/28/2017

CFDnewspaper.com Edition 01 2017

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Published by
CFDnewspaper.com
01 January 2017
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Science Environment Technology Education Business #openfoam #cfd
ICCFD Amsterdam 2017: 19th International Conference on Computational Fluid Dynamics
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WASET
www­.waset­.org - ICCFD 2017 : 19th International Conference on Computational Fluid Dynamics Amsterdam, The Netherlands May 14 - 15, 2017 Conference Information ICCFD Home Aims and Objectives Important Dates Call fo...
A simple phase transition relaxation solver for liquid–vapor flows
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - Determining liquid–vapor phase equilibrium is often required in multiphase flow computations. Existing equilibrium solvers are either accurate but computationally expensive or cheap but inaccurate....
A 3D finite volume scheme for solving the updated Lagrangian form of hyperelasticity
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - The finite volume discretization of nonlinear elasticity equations seems to be a promising alternative to the traditional finite element discretization as mentioned by Lee et al. [Computers and Str...
Projection‐based variational multiscale method for incompressible Navier–Stokes equations in time‐dependent domains
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - A variational multiscale method for computations of incompressible Navier–Stokes equations in time-dependent domains is presented. The proposed scheme is a three-scale variational multiscale method...
A robust low‐dissipation AUSM‐family scheme for numerical shock stability on unstructured grids
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onlinelibrary.wiley.com/resolve/doi
thumbnail onlinelibrary­.wiley­.com - The simple low-dissipation advection upwind splitting method (SLAU) scheme is a parameter-free, low-dissipation upwind scheme that has been applied in a wide range of aerodynamic numerical simulati...
Racing with Multiple Wings
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CFDynamics Journal
thumbnail hanleyinnovations­.blogspot­.com - The picture above shows a wing that I created using the built-in wing editor that comes with Stallion 3D. The main wing is Selig S1223 airfoils while the remaining two airfoils are a NACA 4512 and...
Aerodynamics of a Cessna 182
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CFDynamics Journal
thumbnail hanleyinnovations­.blogspot­.com - The following tutorial is a step-by-step guide on how to analyze a Cessna 182 using Stallion 3D. The procedure can be applied to any light aircraft design. The analysis starts with a CAD model th...
Happy 2017
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CFDynamics Journal
thumbnail hanleyinnovations­.blogspot­.com - Happy New Year, 2017 I wish you a happy new year and continued success in 2017. The picture above was created from a CAD file on Thingiverse.com (the 2017 model). The wings and engine were added u...
Characteristics of a wingtip vortex from an oscillating winglet
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CFDynamics Journal
thumbnail link­.springer­.com - Initial perturbations in the wingtip vortices can potentially lead to instabilities that significantly reduce their lifetime in the wake of an aircraft. An active winglet capable of oscillating abo...
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