Hi,all,<br> I'm now reading the program of citcom.There is one doubt about the parameter viscosity.smooth_cycles.<br>In Solver_multigrid.c, the method to constraint vicosity from finner level to coarser level is different for different values of viscosity.smooth_cycles(ranging from 0 to 3)<br>
But I cannot understand the advantages and disadvantages of each respect to the others.<br>Can you describe to me briefly the situations suited for each choice of viscosity.smooth_cycles?<br>Will the choice of viscosity.smooth_cycles affect the convergence of Stokes solver greatly?<br>
<br>Best wishes!<br clear="all"><br>-- <br>wish you happiness !<br>yours sincerely,<br>Yang Ting<br>School of Earth and Space Science <br>University of Science and Technology of China<br><br>