How to apply velocity profile at inlet

ekraft · June 16, 2016, 17:08

To make my question as simple as possible, I have gathered experimental data from flow through a square duct. Using an anemometer, I gathered the velocity data at the vertical, horizontal, and diagonal directions. After plotting the data and adding trendlines, I have the velocity functions for the three directions. How do I map these functions to the inlet velocity conditions? Is there a tutorial that I have yet to find that explains this well? I apologize if this is a simple question, I am an undergraduate researcher this summer and I am a beginner with Star. Thank you very much for your time and help!

fluid23 · June 16, 2016, 17:58

I believe you will want to set physics conditions > velocity specification to 'components' and then physics values > velocity > Table (x,y,z) to define the spatial variation of those components.

Or... you can write a field function that defines the 3 velocity components as a function of xyz and set physics values > velocity > field function...

June 16, 2016, 17:08	How to apply velocity profile at inlet	#1
ekraft New Member Edward Kraft Join Date: Dec 2014 Posts: 11 Rep Power: 11	To make my question as simple as possible, I have gathered experimental data from flow through a square duct. Using an anemometer, I gathered the velocity data at the vertical, horizontal, and diagonal directions. After plotting the data and adding trendlines, I have the velocity functions for the three directions. How do I map these functions to the inlet velocity conditions? Is there a tutorial that I have yet to find that explains this well? I apologize if this is a simple question, I am an undergraduate researcher this summer and I am a beginner with Star. Thank you very much for your time and help!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Inlet boundary condition with existed velocity profile	wanjia	SU2	9	May 10, 2017 06:33
Problem with assigned inlet velocity profile as a boundary condition	Ozgur_	FLUENT	5	August 25, 2015 05:58
Inlet Velocity in CFX	aeroman	CFX	12	August 6, 2009 19:42
inlet velocity profile in Polyflow	srinu	FLUENT	0	January 16, 2003 21:25
what the result is negatif pressure at inlet	chong chee nan	FLUENT	0	December 29, 2001 06:13

June 16, 2016, 17:58		#2
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 18	I believe you will want to set physics conditions > velocity specification to 'components' and then physics values > velocity > Table (x,y,z) to define the spatial variation of those components. Or... you can write a field function that defines the 3 velocity components as a function of xyz and set physics values > velocity > field function...