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  • FLUENT - Turbulent Flow Past a Sphere - Step 4

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Lab Apps > FLUENT 6.3.26

Select 2ddp 3ddp from the list of options and click Run.

Panel

The "2ddp3ddp" option is used to select the 23-dimensional, double-precision solver. In the double-precision solver, each floating point number is represented using 64 bits in contrast to the single-precision solver which uses 32 bits. The extra bits increase not only the precision but also the range of magnitudes that can be represented. The downside of using double precision is that it requires more memory.

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Navigate to the working directory and select the cylinderSingleSphere.msh file. This is the mesh file that was created using the preprocessor GAMBIT in the previous step. FLUENT reports the mesh statistics as it reads in the mesh:

Check the number of nodes, faces (of different types) and cells. Also, take a look under zones. We can see the five three zones farfield1, farfield2, farfield3,farfield4 inlets, outlet, and cylinder sphere that we defined in GAMBIT.

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