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Issues while running bubbling-EMMS drag udf

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Old   December 6, 2023, 03:04
Post Issues while running bubbling-EMMS drag udf
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Hi everyone,
I am currently doing some research on gas-solid fluidization and I am tasked with simulating the fluidization of Geldart B particles with the bubbling EMMS drag model.
I have written the UDF as per the paper: http://dx.doi.org/10.1155/2016/8256816

It includes 7 equations to find different parameters and finally calculate the drag coefficient. I successfully compiled the code but when I run the simulation, I am getting a floating point error. I tried to find the source of the error and I think it has something to do with the calculation of the void fraction of gas in the cells. For some reason, I am getting 1 for the voidage of gas in the cells. I think it should be below 1.

I have attached my code for reference.
Any help would be greatly appreciated.
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File Type: c bubbling_emms.c (3.8 KB, 3 views)
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