Right now I put fixed particles in the domain and let the flow develop, by making sure that the gaps between them are larger than 70% of the radius. I use 10 grids across the radius and 1.15a for integration radius. l=3 is used for Lamb coefficients. I don't know what makes it hard to converge, since the code diverges 50 steps after the initial quiescent flow condition so the flow has not fully developed yet and the velocity shouldn't be too large to have a big particle Reynolds number. Do you have any suggestions how to stabilize the code better?
Hi!
Right now I put fixed particles in the domain and let the flow develop, by making sure that the gaps between them are larger than 70% of the radius. I use 10 grids across the radius and 1.15a for integration radius. l=3 is used for Lamb coefficients. I don't know what makes it hard to converge, since the code diverges 50 steps after the initial quiescent flow condition so the flow has not fully developed yet and the velocity shouldn't be too large to have a big particle Reynolds number. Do you have any suggestions how to stabilize the code better?