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Unable to get correct solutions that recognize the output

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Old   July 29, 2021, 13:46
Default Unable to get correct solutions that recognize the output
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Amulya K
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Hi,

I'm new to Ansys and I would really appreciate some help!

Quick summary of problem:

I'm currently modeling a very simple pipe ( image of pipe.jpg ). After calculating the solution and moving to view the solution, I am unable to get a solution that accurately depicts how the fluid would move through the pipe. It seems like it is able to recognize the inlet but not the outlet. This is the solution that I got ( solution pic.jpg ) vs what the pipe is image of pipe in solutions.jpg. The flow does not go through the whole pipe.

I will include a more detailed summary of the steps below, in case I'm missing a step or two.

Detailed steps and problem included below:

Geometry =
To create a better mesh I included a plane, split the body, and shared the topography. The plane was placed between the straight and curved part of the pipe. Image ( geometry image.jpg )

Mesh =
Due to the split body, the pipe had two different types of mesh. Triangular for the straight part of the pipe and quad for the curved part.

SetUp =
Viscous flow (SST K-omega)
Materials (fluid = water)
Boundary conditions (Inlet velocity = 1.524 m/s)

Calculation is run

Solution =
I used the streamline option (from inlet) to see the fluid flow. The problem I am having is being unable to see solutions that match what should actually happen.

Problem: In the solutions, it shows that the fluid does not flow through the pipe and flows just from the inlet through the straight pipe and then stops. (image = solution pic.jpg )The fluid should have continued all the way through the curve and out the outlet. (image of pipe = image of pipe.jpg )

I am not sure why this is happening and where the problem lies. Any suggestions on where I might be making a mistake or any steps that I need to change?

Thanks!
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incorrect solution, pipe flow, unrecognized outlet


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