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March 2, 2001, 07:18 |
Mass flow calculation across a mesh section
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#1 |
Guest
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Hi guys,
Can anybody please give me some idea about how to calculate the mass flow rate (not mass flux) across a particular mesh section in the flow domain in STAR-CD(excluding the boundary regions)? Thanks, Haris |
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March 2, 2001, 07:44 |
Re: Mass flow calculation across a mesh section
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#2 |
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First build an appropriate cset. Define your section e.g. "spoint curs". Load velocities and densities: "getc all dens". Use integration: "intergrate cset".
You get in the last position the product A*VN*S which, with velocity as a vector and densitiy as a scalar quantity, yields the mass flow rate in [kg/s]. For two-phase flow the result might be wrong, because S is only the density of the light fluid. In this case you must take the value A*VN and do the density multiplication by hand. In case you already know your cross sections in advance it might be more accurate to write a dedicated postdat.f function |
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March 2, 2001, 08:53 |
Re: Mass flow calculation across a mesh section
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#3 |
Guest
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Thanks Gentleman. Thanks for your suggestion.
Haris |
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March 2, 2001, 08:56 |
Re: Mass flow calculation across a mesh section
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#4 |
Guest
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Thanks Gentleman,
Thanks for your response. Haris |
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