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LTSInterFoam ship flow: Water level rise at start of domain |
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January 21, 2014, 05:22 |
LTSInterFoam ship flow: Water level rise at start of domain
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Jan
Join Date: Jan 2014
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Dear all,
I am pretty new to CFD and new to this forum. I took over CFD work of a colleague of mine about three months ago. We are using LTSInterFoam to study ship flow and reached a pretty good setup for the calculations. But with one of the latest calculations, I discovered a slight water level rise at the start of the domain (and spreads across the whole domain), which seems unphysical, because of two reasons (I think): - The rise of the water level starts way too early - and the water level rises uniformly across the width of the domain. I attached some pictures of the problem and noticed two things: - The velocity profile is a bit strange at the start of the domain: why is the velocity changing in this way? At the start, it should remain pretty much the inlet velocity (which is set at 1.85166 m/s) I think. - In this region, there are some non-orthogonal cells/faces. - I don't know why these are marked as non-orthogonal? - Could these cause such a water level rise? I think it has something to do with either the non-ortho faces or boundary conditions. I would appreciate it when anyone has any suggestions on the causes and possible solutions for this problem. Thanks in advance, JanZ |
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ltsinterfoam, non orthogonal, rise, ship flow, water level |
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