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Big difference in Potential flow vs CFD

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Old   April 8, 2024, 14:57
Default Big difference in Potential flow vs CFD
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maximiliano
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Hello everyone,

I'm currently conducting ship simulations using CFD, specifically Star CCM+, following initial calculations using potential flow analysis software. In the potential flow analysis, the total resistance is calculated to be 560 kN at a speed of 13.5 knots. However, in the CFD simulations with a half hull model, I'm observing nearly double the resistance, approximately 2,000 kN.

Typically, I achieve reliable results using the Hull Performance plugin, and this case isn't particularly complex. I intended to share the geometry file in .dbs format for reference, but it exceeds 1 MB.

Does anyone have any insights on how to address this issue?
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cfd, potentialflow, ship, starcmm


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