February 28, 2022 at 6:39 pmAbdou11Subscriber
currently i am doing a simulation where i am simulating a 2d model of an emptying process which consists of a supply (inlet ) to a tank which is connected to a pipe to empty it. At t=0s, the tank and the pipe are filled with water.
So I setup all the boundary conditions, but when I got to the point where I need to specify the initial velocity perturbation of full flow inside the pipe, I was only able to initialize it 'with a constant value, but as you may know, the velocity distribution inside a pipe at full flow is a 2nd degree curve.
How can I assign a 2nd degree curve condition as an initialization value?
Thanks in advance!March 1, 2022 at 9:47 amDrAmineAnsys EmployeeUse an Expression to have the proper initialization? I do not understand the 2nd degree condition: can you please tell more?
March 1, 2022 at 2:59 pmMarch 1, 2022 at 3:22 pmDrAmineAnsys EmployeeAh if that is what you mean with second order..
Okay for that you need to create an Expression to input a parabolic velocity profile. In Fluent User's Guide you will find a detailed example how to do that.
March 1, 2022 at 3:50 pmAbdou11SubscriberThank you for the information, i will look it up
March 2, 2022 at 9:57 amDrAmineAnsys EmployeeWelcome!
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