how to generate a series of grids
"NPARC Alliance Tutorial on CFD Verification and Validation" said that :
"The easiest approach for generating the series of grids is to generate a grid with what one would consider fine grid spacing, perhaps reaching the upper limit of one's tolerance for generating a grid or waiting for the computation on that grid to converge. Then coarser grids can be obtained by removing every other grid line in each coordinate direction. This can be continued to create additional levels of coarser grids"
My question is :
are there any utilites in OpenFOAM or other package clould remove every other grid line in each coordinate direction of a grid？
PS: the grid i need to deal with is the discretization of the external flowfield around a very complex geometry configuration.
Thanks for your reply!!!
No, there is no such utility.
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