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making the mesh coarser in gmesh

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Old   July 10, 2012, 09:14
Default making the mesh coarser in gmesh
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I think to reduce the courant number I have to reduce the delta I i.e. dimension of each grid cell and in order to do so i have to make a coarser mesh in gmesh.How can i make a coarses mesh in gmesh? Please help me!!
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