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No convergence when PRESTO scheme is employ in water turbine modeling |
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June 19, 2018, 12:38
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No convergence when PRESTO scheme is employ in water turbine modeling
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Member
Abdulaziz Abutunis
Join Date: Aug 2014
Posts: 43
Rep Power: 11  |
Hello All:
I am simulating a water turbine with structured mesh for all domains. I noticed that when PRESTO scheme is employed the solution will not converge especially the momentum where its residual goes to very high values. My second concern is that, when using single reference frame, the torque I got is higher than the experimental one: at some rotational speed it is twice and higher rotational speed it may reach one order of magnitude. Thanks Aziz Last edited by ama294; June 19, 2018 at 12:42. Reason: Missed some clarification |
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| no convergence, presto |
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