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Lid-Driven Cavity Fortran Code works for coarse mesh but not fine mesh |
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April 29, 2024, 13:59 |
Lid-Driven Cavity Fortran Code works for coarse mesh but not fine mesh
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#1 |
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Praveen Kumar
Join Date: Oct 2023
Posts: 4
Rep Power: 2 |
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 |
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April 29, 2024, 15:29 |
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#2 | |
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Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,793
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Quote:
Re number? Solution on the 11x11 grid? |
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April 29, 2024, 16:03 |
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#3 |
New Member
Praveen Kumar
Join Date: Oct 2023
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Hi, the Re = 100, I've attached the tecplot file of the last time step. |
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April 29, 2024, 16:52 |
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#4 |
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Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,793
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