ddt (rho U) + div (rho U U) – laplacian (mu U) = – grad (p)
Generally, in the explicit schemes of differential method, Courant number is an important number which should be less than 1 in order to assure the stability. However, if the Courant number is too small, much computation time will be lost. Continue reading Run a Case with Variable Time Step in OpenFOAM
In OpenFOAM, We can simulate fluid dynamics with general meshes, such as tetrahedral, hexhedral, and with polyhedral mesh which workes well in OpenFOAM. Generally, A tetrahedral mesh in a geometric model should be done, which should be converted to the Continue reading How to convert tetrahedral mesh to polyhedral mesh
Here is an example in The C++ Programming Language written by Bjarne Stroustrup, on page 53: #include #include #include #include using namespace std; struct Entry{ string name; int number; }; template class Vec : public vector { public: Vec() : Continue reading C++ Name Lookup in template
Generally, those guys using paraview, a data visualization packages in CFD, want to show a time stamp during their animation. Here is a way to display the time stamp, using paraview 2.4. Load data with paraview, in 3D view property, Continue reading A way to get live time stamp in paraView
When using paraView/Foam of version 2.4 for a few days on Fedora 8, I found that I cannot edit any text or string appeared in the text edit box. Here is a solution: edit the .scim/config file in your home Continue reading Solution for Dead keyboard with paraView
Remote Host: Fedora 3 Localhost: Windows XP Using OpenSSH+Xming to Log in Remote Linux A. Ensure openssh have been installed in the remote host, using this command to query: rpm -qa | grep openssh However, openssh has been installed automatically when Continue reading Login Remote Linux in Windows System