Solver for the linear Couette-flow problem for a rarefied BGK gas, which is reduced to the 1D integral equation.
The code is based on the algorithm presented in
- S. Jiang, L.-S. Luo, Analysis and accurate numerical solutions of the integral equation derived from the linearized BGKW equation for the steady Couette flow, J. Comput. Phys. 316 (2016) 416–434. doi: 10.1016/j.jcp.2016.04.011.
Example of usage:
./exact-bgkw.py -k=0.1 -Nu=256 -Ng=4
The output consists of 4 columns: coordinate X, velocity v_x, shear stress p_xy, longitudinal heat flow q_x.