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Passive scalar-concentration of species

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Old   May 31, 2012, 11:32
Default Passive scalar-concentration of species
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Ke Wu
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Hi
I want to measure the concentration of species in a pipe flow
How can I make the setting in Star-ccm?
Thanks
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Old   May 31, 2012, 14:48
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Activate the passive scalar model, set your boundary conditions, run it, create some reports / probes / scenes / sections / streamlines / whatTheF...Ever. Should be pretty straightforward.
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Old   June 3, 2012, 12:56
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Quote:
Originally Posted by abdul099 View Post
Activate the passive scalar model, set your boundary conditions, run it, create some reports / probes / scenes / sections / streamlines / whatTheF...Ever. Should be pretty straightforward.
hi abdul099
I have enabled the passiva scalar model
How can I set the varial of interest into concentration of species?
I have no idea exactly how to set it
For the concentration of species, should line, point or area be created? which one is correct for vomule concentration?
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Old   June 16, 2012, 10:50
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Quote:
Originally Posted by abdul099 View Post
Activate the passive scalar model, set your boundary conditions, run it, create some reports / probes / scenes / sections / streamlines / whatTheF...Ever. Should be pretty straightforward.
hi absule
what kind of boundary conditions I need to set?
thanks
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Old   June 18, 2012, 15:13
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Pretty hard to answer without any background information about your case. First, what do you want to simulate? Second, what is the main effect you want to evaluate?
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Old   June 20, 2012, 18:00
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Quote:
Originally Posted by abdul099 View Post
Pretty hard to answer without any background information about your case. First, what do you want to simulate? Second, what is the main effect you want to evaluate?
I'm modeling a gas detection unit which chemical reaction takes places in gas sensor
Chemical reaction is not considered in the simulation
The interest point is focused on improving response stability and achieving faster response
So the concentration of fluid close to gas sensor is important to know
Hopefully my statement is clear
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