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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: simt

Forum: OpenFOAM Running, Solving & CFD November 22, 2013, 11:29

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt Has anyone used the numerical beach capabilities... Has anyone used the numerical beach capabilities within the ShipHydroSIG package/ navalFoam? I have tried to use the numerical beach for free surface ship flows but it creates waves near inlet and...

Forum: OpenFOAM Running, Solving & CFD July 30, 2013, 02:02

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt Refining mesh, shorten time step or change to... Refining mesh, shorten time step or change to limitedLinear 1 phi scheme for div(phi,U) does not decrease the oscillations unfortunately.

Forum: OpenFOAM Running, Solving & CFD July 26, 2013, 02:52

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt Thank you for your response, I've been using... Thank you for your response, I've been using linearUpwind grad(U) where grad(U) is cellLimited Gauss linear 1. Is it reasonable to think that my oscillations would vanish if I would use...

Forum: OpenFOAM Running, Solving & CFD July 26, 2013, 02:04

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt I've refined my mesh (made using snappyHexMesh)... I've refined my mesh (made using snappyHexMesh) to 6M cells and a fixed time step yielding a maxCo of ~1.5 and maxAlphaCo of ~1 (using nAlphaSubcycles of 5). Unfortunately the resistance evolves...

Forum: OpenFOAM Running, Solving & CFD July 24, 2013, 10:39

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt kilroy, thank you for your reply. I'm... kilroy, thank you for your reply. I'm simulating a model ship of 6.5 m length at a speed of 2 m/s. Is it normal to find oscillations of fairly constant amplitude and period time from simulation...

Forum: OpenFOAM Running, Solving & CFD July 24, 2013, 02:35

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt I've experienced a (oscillating) pressure... I've experienced a (oscillating) pressure resistance when using interFoam for free surface hydrodynamics. Pressure oscillates about +- 20 % with periods of ~4 seconds, anyone knows the reason for...

Forum: OpenFOAM Running, Solving & CFD July 15, 2013, 04:38

Replies: 322 Free Surface Ship Flow Views: 99,943 Posted By simt Are you referring to if the transport eq. for the... Are you referring to if the transport eq. for the volume fraction is solved implicitly/explicitly? If so, (this is a question for everyone), does implicit solving of the alpha1 in OF yield lower...

Showing results 1 to 7 of 7

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