How to prescribe inlet BC with external tabulated data

yongxiang · September 24, 2015, 13:26

Hello all,
I am quite new to OpenFOAM, and hope to prescribe inlet Boundary Condition with a laminar velocity profile computed from Blasius solution. In other words, I have prepare the velocity profile in a dat file with the following format, for instance. How can I prescribe such profile to the inlet boundary then? If there is any utility available?

y U
0 0
0.1 0.1
0.5 0.2
1 0.6

towanda · September 26, 2015, 13:06

Hi,
I am newby, but I think you can make a fitting of your profile and after that you can program the expression of the fitting in a groovyBC.

best regards

yongxiang · September 28, 2015, 04:48

Thanks towanda, the fitted profile may be not very precise. Do you know any utility that I can just read of import the profile data from external data file?

With regards

September 24, 2015, 13:26	How to prescribe inlet BC with external tabulated data	#1
yongxiang Member Join Date: Sep 2014 Posts: 32 Rep Power: 13	Hello all, I am quite new to OpenFOAM, and hope to prescribe inlet Boundary Condition with a laminar velocity profile computed from Blasius solution. In other words, I have prepare the velocity profile in a dat file with the following format, for instance. How can I prescribe such profile to the inlet boundary then? If there is any utility available? y U 0 0 0.1 0.1 0.5 0.2 1 0.6

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September 26, 2015, 13:06		#2
towanda New Member towanda Join Date: Aug 2014 Posts: 20 Rep Power: 13	Hi, I am newby, but I think you can make a fitting of your profile and after that you can program the expression of the fitting in a groovyBC. best regards

September 28, 2015, 04:48		#3
yongxiang Member Join Date: Sep 2014 Posts: 32 Rep Power: 13	Thanks towanda, the fitted profile may be not very precise. Do you know any utility that I can just read of import the profile data from external data file? With regards