Custom Field Function

Njit · June 24, 2017, 11:59

Hello

I need to write (d-axialvelocity/d-radialcoordinate)^2.5 in the custom field function to extract the data. However, custom field function in FLUENT is not accepting a decimal number(2.5) in power and gives absurd results in the extracted data. However it gives correct results for a whole number. Can someone help me in this issue and provide me way to write 2.5 in power while writing a function in the custom field function.
Thanks in advance.

LuckyTran · June 24, 2017, 16:47

Try using pow 2 and sqrt.

Also check if the error is caused by neg numbers since ^2.5 would return imaginary numbers.

June 24, 2017, 11:59	Custom Field Function	#1
Njit New Member Njit Join Date: Dec 2016 Posts: 9 Rep Power: 10	Hello I need to write (d-axialvelocity/d-radialcoordinate)^2.5 in the custom field function to extract the data. However, custom field function in FLUENT is not accepting a decimal number(2.5) in power and gives absurd results in the extracted data. However it gives correct results for a whole number. Can someone help me in this issue and provide me way to write 2.5 in power while writing a function in the custom field function. Thanks in advance.

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June 24, 2017, 16:47		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Try using pow 2 and sqrt. Also check if the error is caused by neg numbers since ^2.5 would return imaginary numbers.