| Author | Message | |||
     Jared Barber (jared_barber) Member Username: jared_barber Post Number: 4 Registered: 01-2007 |
Hey, I have what I feel is a relatively simple domain for which I want to solve a set of equations on. The equations are not the problem as one can see from the attached the pde-file which has no equations associated with it, just the domain. In this particular case, I run FlexPDE3 and receive Floating-Point Divide by Zero ---Called from resolve_features_0 ---Called from dominpde_build_features_0 ---Called from mesher2_freshmesh_0 ---Called from control_do_gridgen_0 ---Called from resolve_features_0 This error occurs for the attached pde-file (which actually has no pde in it). It occurs in FlexPDE Version 3.11. It does not occur in FlexPDE 5.0.12. I was hoping there was some simple thing I could do (for instance, I wonder if the problem lies in the "fillet" that I'm using...maybe I should write out the arc rather than using "fillet") to get the mesh generator to somehow take this domain and generate a mesh on it. I note that if I take out the fillets (making the domain all boxy) that FlexPDE3 generates a mesh without error. It would be desirable not to have to resort to corners (because those corners do not exist in the system I am considering). Alright, thanks Jared
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| Robert G. Nelson (rgnelson) Moderator Username: rgnelson Post Number: 861 Registered: 06-2003 |
It appears that the point at xc1[8] lies exactly on the boundary that would be there if the corner were not filleted, and that in version 3 this coincidence is treated before the fillet. This causes the phantom line to be split, and generates a weird boundary that fails to disappear when the fillet is applied. Apparently, Versions 4 and 5 treat fillets first, and do not have this problem. The problem will probably go away if you use an ARC for this inside corner, since in that case there will be no apparent continuation of the boundary to the interior square corner. | |||
| Jared Barber (jared_barber) Member Username: jared_barber Post Number: 5 Registered: 01-2007 |
Thanks |
