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Problem in Multi phase flow
Posted 2017年5月23日 GMT-4 09:52 1 Reply
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Hi everyone, I am new to Comsol and I am trying to simulate compression molding process in Comsol. In compression molding process, a constant pressure (-y direction) is applied on the upper half of the mold until the molding material has solidified.
I want to simulate the motion of a fluid with fibers in it, which is a multiphase problem. In my case, my material is already in the mold and there is no inlet or outlet.
I face following problems I wonder if someone can guide me in this regard.
1. I am not able to define two material in a single geometry in Comsol.
2. In my case, I tried to simulate without an inlet and outlet which do not work for me at the moment. If I assume an outlet then somehow I get a solution. Does anyone know why?
I want to simulate the motion of a fluid with fibers in it, which is a multiphase problem. In my case, my material is already in the mold and there is no inlet or outlet.
I face following problems I wonder if someone can guide me in this regard.
1. I am not able to define two material in a single geometry in Comsol.
2. In my case, I tried to simulate without an inlet and outlet which do not work for me at the moment. If I assume an outlet then somehow I get a solution. Does anyone know why?
1 Reply Last Post 2017年5月24日 GMT-4 03:10
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Posted:
8 years ago
Hi Waqas:
I suggest you to take a look at the demo: "capillary filling ls" inside the application library.
About the first question: you can right click level Set to add one more "Initial Values" then you can choose the domain with corresponding initial materials.
About the second question, you can try to define an outlet with normal velocity equals to 0.
Best,
Xianfeng
I suggest you to take a look at the demo: "capillary filling ls" inside the application library.
About the first question: you can right click level Set to add one more "Initial Values" then you can choose the domain with corresponding initial materials.
About the second question, you can try to define an outlet with normal velocity equals to 0.
Best,
Xianfeng