Lid-Driven Cavity Fortran Code works for coarse mesh but not fine mesh -- CFD Online Discussion Forums

April 29, 2024, 13:59

Lid-Driven Cavity Fortran Code works for coarse mesh but not fine mesh

praveenu

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Praveen Kumar

Join Date: Oct 2023

Posts: 4

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Hi all,
I've written a FORTRAN code to solve the classical lid driven cavity problem using SMAC algorithm. The time marching is done using first order Euler scheme and spatial discretized using second order central difference.

The code seems to work fine for a gird of 11x11 but blows up for 51x51. I've tried reducing the CFL number but it doesn't seem to help.

Any advise?

thanks in advance!

PS: the code is attached

Attached Files

code.txt (7.7 KB, 2 views)

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