What should my modeling setup be for CO2 dissolution in water

mshahriar · November 22, 2022, 11:47

This is my flow of the problem

1. CO2 goes from a inlet, at the top of a 2D square, and mixes with water.
2. As CO2 mixes with water, the water density increase.
3. The higher density water moves down.

Essentially, this is a Rayleigh-Taylor instability problem (higher density fluid-over low density). But I can't figure out how to do the first two steps. I am new on Ansys, so any advice will help.

mshahriar · November 24, 2022, 08:40

Any help is appreciated! I am using VOF model with CO2 mass flow as inlet. But I don't think that's the right one.

November 22, 2022, 11:47	What should my modeling setup be for CO2 dissolution in water	#1
mshahriar New Member Md Fahim Shahriar Join Date: Nov 2022 Posts: 9 Rep Power: 3	This is my flow of the problem 1. CO2 goes from a inlet, at the top of a 2D square, and mixes with water. 2. As CO2 mixes with water, the water density increase. 3. The higher density water moves down. Essentially, this is a Rayleigh-Taylor instability problem (higher density fluid-over low density). But I can't figure out how to do the first two steps. I am new on Ansys, so any advice will help.

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November 24, 2022, 08:40		#2
mshahriar New Member Md Fahim Shahriar Join Date: Nov 2022 Posts: 9 Rep Power: 3	Any help is appreciated! I am using VOF model with CO2 mass flow as inlet. But I don't think that's the right one.