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How to calculate gas concentration when using passive scalar model |
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October 21, 2021, 17:03 |
How to calculate gas concentration when using passive scalar model
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New Member
Guoxing
Join Date: Oct 2018
Posts: 7
Rep Power: 8 |
I am modelling tracer gas released from a hole, which is documented in the website (http://www.wind.arch.t-kougei.ac.jp/...rmal_Flow.html). Tracer gas (C2H4: 5% ethylene) was released at a flow rate of q=9.17x10^-6 m3/s. The flow rate was then normalized by reference velocity and reference height as C0. The measured gas concentration at measurement points were given as C/C0.
I still have the following questions: 1.What is the meaning of Passive Scalar in the Physics Values, shown in the attached picture. 2.How to set up the boundary condition: tracer gas (C2H4: 5% ethylene) was released at a flow rate of q=9.17x10^-6 m3/s? 3.How to calculate gas concentration (C/C0) at certain points. Thanks very much for guiding me through the below questions. Best regards, Guoxing |
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