How to implement InletOutlet velocity

Albe

Hi,

I am currently trying to create a domain with open boundaries (v 4.3). However, as soon as I reduce the water depth, the fluid accelerates towards the outlet edge. I have already removed the acceleration in the x-direction and adjusted various parameters (speed, viscosity, dp, ...), but the problem occurs in every simulation.

Thanks in advance for your suggestions.

Albe

I forgot to mention that I have to reduce the velocity (0.06 m/s). If I keep the set velocity (2_OpenChannel), the error does not occur.

aoliva

Could you attach the .xml file of your case? I think reading your input file is an easier way to understand your problem

Alex

if problem is not solved, you can email us to dualsphysics@gmail.com and we can check that

Albe

The problem already occurs when I greatly reduce the speed in the InletOutlet \ OpenChannel xml file (-90%). The gravity in the flow direction I have set to zero. In addition to the gravity only the viscosity seems to be adjusted in the file, but I have found no value range here, which solves the Problem.

There seems to be an acceleration to the right boundary.
Do I have to consider further parameters if I change the flow velocity?