|November 11, 2009, 08:47||
errors from meshing
Join Date: Nov 2009
Posts: 158Rep Power: 9
i am a user of Fluent and Gambit.
I would like to know what types of errors are due to the meshing
1-why is it always advised to keep the size ratio of 2 consecutive cells around 1.2 ???
2- why a highly skewed cell will affect the simulation???
I dont understand those 2 points, since as the finite volume method is conservative, i dont see how the grid quality would affect results (a coarser grid will induce a higher truncation error, but why about cells shape?)
|November 12, 2009, 16:07||
Join Date: Oct 2009
Posts: 88Rep Power: 9
I hope to clarify the second point: the importance of the shape of the mesh quality is that trasmit an information through it.
for example if the face of a cube transmit this information to another one is perfect, but if it sends it to a curve then it creates a spazial dispersion of information.
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to write k and epsilon before the abnormal end||xiuying||OpenFOAM Running, Solving & CFD||8||August 27, 2013 15:33|
|Convergence moving mesh||lr103476||OpenFOAM Running, Solving & CFD||30||November 19, 2007 15:09|
|Transient simulation not converging||skabilan||OpenFOAM Running, Solving & CFD||12||September 17, 2007 17:48|
|IcoFoam parallel woes||msrinath80||OpenFOAM Running, Solving & CFD||9||July 22, 2007 02:58|
|Could anybody help me see this error and give help||liugx212||OpenFOAM Running, Solving & CFD||3||January 4, 2006 19:07|