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Incorrect Cp Value when I used Piecewise-Polynomial Profile |
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August 14, 2023, 23:29
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Incorrect Cp Value when I used Piecewise-Polynomial Profile
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#1 |
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New Member
Liam Wan
Join Date: Aug 2023
Posts: 3
Rep Power: 4  |
I'm trying to use the Piecewise-Polynomal Profile to define Cp of Air, there are 8 temperatue ranges I need to specify. However, from the fourth temperature range, the curve in the dialog box deviates from the curve I plotted in MATLAB, and negative values appear. I have double checked the input values and found no errors. Any ideas?
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August 15, 2023, 03:48
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#2 |
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New Member
Liam Wan
Join Date: Aug 2023
Posts: 3
Rep Power: 4 |
Found the reason... The input value in FLUENT dialog box can only have less than 7 valid numbers, which leads to a huge rounding error.
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