Regarding fluent mixture model

S.Jagadeesh · July 28, 2022, 05:06

I am a beginner in multiphase flows so please help me. I am trying to simulate a multiphase flow (two phase flow of gas and solid phase) using the Mixture model of ANSYS Fluent. I have two queries regarding this.

1.How to specify the primary phase (gas in this case) as inviscid.

2. How to specify the solid phase as incompressible pseudo fluid.

Indra · July 28, 2022, 05:33

Quote:

Originally Posted by S.Jagadeesh

I am a beginner in multiphase flows so please help me. I am trying to simulate a multiphase flow (two phase flow of gas and solid phase) using the Mixture model of ANSYS Fluent. I have two queries regarding this.

1.How to specify the primary phase (gas in this case) as inviscid.

2. How to specify the solid phase as incompressible pseudo fluid.

I don't think you can specify one phase as inviscid for multiphase models.

Now there's an option to define a phase as granular phase(include granular viscocity, packing limit and all that). Although I am not sure what you mean by pseudo fluid.

S.Jagadeesh · July 28, 2022, 05:45

Below I attached the paper which I am trying to replicate. In that paper they have used the following assumptions for the Fluent mixture model.( inviscid flow for the gas and the solid phase as pseudo fluid). Can you once go through it and tell me what you think.

https://www.researchgate.net/publica...ll_Gun_Chamber

S.Jagadeesh · July 28, 2022, 06:15

Quote:

Originally Posted by Indra

I don't think you can specify one phase as inviscid for multiphase models.

Now there's an option to define a phase as granular phase(include granular viscocity, packing limit and all that). Although I am not sure what you mean by pseudo fluid.

Below I attached the paper which I am trying to replicate. In that paper they have used the following assumptions for the Fluent mixture model.( inviscid flow for the gas and the solid phase as pseudo fluid). Can you once go through it and tell me what you think.
https://www.researchgate.net/publica...ll_Gun_Chamber

S.Jagadeesh · July 28, 2022, 08:06

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July 28, 2022, 05:06	Regarding fluent mixture model	#1
S.Jagadeesh New Member sandopu jagadeesh Join Date: Jul 2022 Posts: 5 Rep Power: 3	I am a beginner in multiphase flows so please help me. I am trying to simulate a multiphase flow (two phase flow of gas and solid phase) using the Mixture model of ANSYS Fluent. I have two queries regarding this. 1.How to specify the primary phase (gas in this case) as inviscid. 2. How to specify the solid phase as incompressible pseudo fluid.

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July 28, 2022, 05:45		#3
S.Jagadeesh New Member sandopu jagadeesh Join Date: Jul 2022 Posts: 5 Rep Power: 3	Below I attached the paper which I am trying to replicate. In that paper they have used the following assumptions for the Fluent mixture model.( inviscid flow for the gas and the solid phase as pseudo fluid). Can you once go through it and tell me what you think. https://www.researchgate.net/publica...ll_Gun_Chamber

July 28, 2022, 08:06		#5
S.Jagadeesh New Member sandopu jagadeesh Join Date: Jul 2022 Posts: 5 Rep Power: 3	aaaaaaaaaaaa