Hello,
I am trying to create a two-phase flow simulation where the fluid is in a cavity and one of the walls of that cavity moves. The wall moves outwards and so air needs to be pulled in at an inlet to satisfy mass conservation. I have tried to use Moving Mesh as well as Deformed Geometry. In both cases, I set a prescribed mesh velocity for my moving boundary. Moving Mesh didn't work at all i.e. didn't move. Deformed Geometry moved the boundary as expected. However, since deformed geometry creates new material when the wall is moved out, I am trying to add an outlet. Unfortunately, whenever I add an outlet (or inlet) with a set velocity, the simulation crashes during initialization and I get an error messages like the following: "Failed to find consistent initial values. Last time step is not converged. - Feature: Time-Dependent Solver 1 (sol1/t1)"
Does anyone have any suggestions how to solve this?
Thanks,
Gerd
I am trying to create a two-phase flow simulation where the fluid is in a cavity and one of the walls of that cavity moves. The wall moves outwards and so air needs to be pulled in at an inlet to satisfy mass conservation. I have tried to use Moving Mesh as well as Deformed Geometry. In both cases, I set a prescribed mesh velocity for my moving boundary. Moving Mesh didn't work at all i.e. didn't move. Deformed Geometry moved the boundary as expected. However, since deformed geometry creates new material when the wall is moved out, I am trying to add an outlet. Unfortunately, whenever I add an outlet (or inlet) with a set velocity, the simulation crashes during initialization and I get an error messages like the following: "Failed to find consistent initial values. Last time step is not converged. - Feature: Time-Dependent Solver 1 (sol1/t1)"
Does anyone have any suggestions how to solve this?
Thanks,
Gerd