LBM_Stream

This a sample implementation of Lagrangian/Origin Streaming for the Lattice Boltzmann Method.

Using preprocessor directives, the code may be compiled using either origin streaming or the traditional two-lattice approach to streaming.

Build instructions

Prerequisites: Cmake

git clone <github_url>
mkdir build && cd build
cmake <options> ../lbm_stream
make
./lbm_stream

Options:

• -DORIGIN_STREAMING - Origin streaming implementation
• -DTWO_LATTICE - Traditional two lattice approach
• -DOUTPUT - Executeable will output a binary file of LX x LY floats representing x-velocity for each lattice site

Note: Do not use ORIGIN_STREAMING and TWO_LATTICE options at the same time

Opening output in Matlab

fid = fopen('<path_to_file>');
ux = fread(fid,[Lx,Ly],'double');
fclose(fid);
imagesc(ux')