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Showing results 1 to 13 of 13 Search took 0.00 seconds. Search: Posts Made By: JasonG

Forum: OpenFOAM Running, Solving & CFD January 10, 2013, 13:09

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG 88 is nothing compared to the 2000 I have been... 88 is nothing compared to the 2000 I have been getting :(. I am fairly frustrated with the lack of controls in Workbench. Whenever I get some down time I will have to investigate using the native...

Forum: OpenFOAM Running, Solving & CFD January 10, 2013, 08:55

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Thanks for the links. Attached are pictures of... Thanks for the links. Attached are pictures of my current mesh I am working with. Below is the output from the checkMesh utility. I assume the non-orthogonal faces are setting a limit on my...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 20:17

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Attached are the residuals from a current run... Attached are the residuals from a current run that has nNonOrthogonalCorrectors 2.

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 16:41

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG RASProperties (which I admit, I am not well... RASProperties (which I admit, I am not well studied on the ramifications of the kOmegaSSTCoeffs) transportProperties: fvSchemes:

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 16:37

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Here is an example of my initial condition file: ... Here is an example of my initial condition file: k: nut:

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 16:14

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG That was my residual. That was my residual.

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 15:12

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Thanks for the suggestion, I appreciate it. I... Thanks for the suggestion, I appreciate it. I have been fair dissapointed with the lack of user meshing controls in Workbench, and routinely battle with less than desirable meshes that have many...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 15:00

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG I will look into this. I may not have access to... I will look into this. I may not have access to that menu option since I do not have a license for Fluent, only the mesher for Ansys Mechanical which has CFX meshing criteria. I have 32 GB of ram...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 14:49

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Interesting. Could you explain this a little... Interesting. Could you explain this a little further? I am currently take my *.msh file from Ansys and running "fluentMeshToFoam *.msh -scale 39.36996" to convert my Ansys metric mesh into US...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 13:58

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG I have been using SimpleFoam and kOmegaSST as... I have been using SimpleFoam and kOmegaSST as well. Attached is a quick image I found of one of my mesh iterations on a less complex model. I am still not well versed in meshing within...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 13:33

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG I have attempted various meshing approaches, most... I have attempted various meshing approaches, most of which involve a tet mesh with a prismatic boundary layer. I started with setting a fixed first cell height for the boundary layer based on a...

Forum: OpenFOAM Running, Solving & CFD January 9, 2013, 10:40

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG Bump. I am still having difficulty. I... Bump. I am still having difficulty. I suspect my high residuals for increased Re are an artifact of my mesh, but I am not certain if my turbulence model and choice of wall treatment are prone to...

Forum: OpenFOAM Running, Solving & CFD September 7, 2012, 13:10

Replies: 21 SimpleFoam: High residuals after increase in Reynolds Number Views: 4,818 Posted By JasonG SimpleFoam: High residuals after increase in Reynolds Number Hello, I have been working with the SimpleFoam solver to model pressure drop of internally bounded flow through passages. For my current analysis I am assuming incompressible, steady-state, and...

Showing results 1 to 13 of 13

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