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February 15, 2015, 18:24 |
Multi-Species Simulation
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#1 |
New Member
Richard Beauchamp
Join Date: Nov 2014
Posts: 5
Rep Power: 11 |
Hi,
I have been trying recently to simulate the mixing of CO2 in air. To do that, I have created two blocks using Hexpress Hybrid, one containing each fluid. I also have put the proper fnmb conditions to insure that the flow through one block can get to the other. Thus, I have an inlet of CO2 and an FNMB allowing the CO2 to enter the AIR domain. Unfortunately, I am not able to see any mixing. I can see the speed gradiants caused by the CO2 entering the domain. Also, since the CO2 has a slightly higher temperature, I can see the temperature gradiants develop in the AIR domain. However, when I try to map the evolution of the GAMMA parameter (Ratio of specific heats), it remains purely constant in the air domain. I have seen that in the OUTPUT window, there is an option for multi-species output. However, I am unable to access it. It leads me to beleive that it is some type of flow model that I need to activate. Unfortunately, I have not seen this obtion anywhere. Can anybody tell me how to do a mixing simulation (multi-species simulation)? This would be really appreciated. |
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Tags |
mixing gases, multi blocks, multi-species, multiphase |
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