ddt (rho U) + div (rho U U) – laplacian (mu U) = – grad (p)
Preparation: 1. In order to install foam-extend 3.1, please make sure you have installed packages git, mercurial and subversion for source code retrieving, rpm-build for software packaging, gcc and g++ for compiling. sudo yum install rpm-build gcc gcc-c++ libstdc++-devel binutils-devel Continue reading Install foam-extend 3.1 on CentOS 7
Now, let’s look at how the simpleFOAM works. the simpleFOAM.C file: #include “fvCFD.H” #include “singlePhaseTransportModel.H” // transport model with viscosity model #include “RASModel.H” // turbulent model // * * * * * * * * * * * * * Continue reading simpleFOAM
On June 26, 2010, OpenFOAM 1.7.0 has been released. But It does not provide any compiled packages but Ubuntu/Debian binary packages. I have been using OpenFOAM for years without compiling the whole OpenFOAM and ThirdParty packages. It’s time to do Continue reading Compiling OpenFOAM 1.7.0 on Fedora 13
Title: Dynamic Characteristics Analysis of Side-Branch Resonant Hydraulic Pulsation Dampers (in Chinese) Author: DU Run, KE Jian, YU Lanying Abstract: Transient state of side-branch resonant hydraulic pulsation dampers computed with a CFD (Computational Fluid Dynamics) code was presented to analyze Continue reading Dynamic Characteristics Analysis of Side-Branch Resonant Hydraulic Pulsation Dampers
Title: A Method to Frequency Response Analysis of Hydraulic Pulsation Dampers Based on CFD Authors: DU Run, LIU Xiaohong, YU Lanying, KE Jian Abstract: Simulating transient state of hydraulic pulsation dampers with a CFD (Computational Fluid Dynamics) code was done Continue reading Frequency Response Analysis Method of Hydraulic Pulsation Dampers
Sometimes, implementing time varying boundary conditions for a transient simulation is interesting. A series of pressure (or other varibles) values should be read from a text file, and update the boundary at each timestep. the boundary scalar value type should Continue reading Transient Boundary Syntax Changed in OpenFOAM v1.5