Learning Forum

[shrestha1988]

Hello, I want to simulate how the water flow inside a swimming pool when a water pump is placed inside the pool. The pump has been created by establishing the pool as a fluid domain and the pump is subtracted using Boolean. For the boundary conditions, I have used one side as velocity inlet and other as pressure outlet and used meshing as element order quadratic with 300mm size. I have used the pressure solver and the k-epsilon model. The result is attached below but it somehow does not look sensible. Please give me your suggestions on where I went wrong or how I should have done it better?

[Rahul Kumar]

Hello, 

As Ansys Employees, we will not be able to view any attached files. Can you please insert images instead so that we can better assist you? 

Regards, 

Rahul 

[shrestha1988]

[shrestha1988]

As you can see from the images, the flow is not symmetrical and iterations are not converging at all. I have run the simulations for 1000 iterations but the graph is still fluctuating. For the setup, i have used cylinder as a pump whose diameter is 0.3 mm and length 0.6 mm. The two sides act as velocity-inlet of 2m/s and pressure-outlet of 0 Pa. is 300 mm a large size for a pump flow? I have used element order quadratic, size 300 mm, adaptive sizing on, resolution 3, inflation as program controlled. I have used pressure solver, steady flow, viscous as k-epsilon and water as fluid domain. After this, I ran the iterations but the solution is not converging. Please advise where i went wrong in this and how do I get a more accurate solution. 
thanks in advance

[shrestha1988]

Hello, can anyone help me with this issue I am having with my project ?