Quick Discretization

January 6, 2003, 09:38

Hi,

Can anyone tell me, is it possible to use the quick discretization scheme on a 3d fully tetrahedral grid?

January 7, 2003, 07:20

munal can tell you about this?

January 7, 2003, 21:31

Yes, you can also use even an hybrid mesh. But the quick is not usually(traditional) quick scheme. Be careful.

Regards,

January 8, 2003, 03:42

What exactly do you mean by "Quick is not usually(traditional) quick scheme.

I have consulted the fluent manual and it says "Fluent allows the use of the quick scheme for unstructured or hybrid grids; in such cases the usual second-order upwind disretization scheme will be used at the faces of non-hexahedral cells."

Based on the above I take it then that on a fully tet grid I should just use second order upwind as quick would give me the same results? True?

January 8, 2003, 05:03

Usually(traditional) quick is third order discretization scheme. But in case of the quick is used for fully tet mesh and hybrid mesh, it is not to be third order discretization scheme.So I remarked.

And your last remarks is correct.

Regards,

January 6, 2003, 09:38	Quick Discretization	#1
Bob Guest Posts: n/a	Hi, Can anyone tell me, is it possible to use the quick discretization scheme on a 3d fully tetrahedral grid?

January 7, 2003, 07:20	Re: Quick Discretization	#2
zhhuang Guest Posts: n/a	munal can tell you about this?

January 7, 2003, 21:31	Re: Quick Discretization	#3
Keil Guest Posts: n/a	Yes, you can also use even an hybrid mesh. But the quick is not usually(traditional) quick scheme. Be careful. Regards,

January 8, 2003, 03:42	Re: Quick Discretization	#4
Bob Guest Posts: n/a	What exactly do you mean by "Quick is not usually(traditional) quick scheme. I have consulted the fluent manual and it says "Fluent allows the use of the quick scheme for unstructured or hybrid grids; in such cases the usual second-order upwind disretization scheme will be used at the faces of non-hexahedral cells." Based on the above I take it then that on a fully tet grid I should just use second order upwind as quick would give me the same results? True?

January 8, 2003, 05:03	Re: Quick Discretization	#5
Keil Guest Posts: n/a	Usually(traditional) quick is third order discretization scheme. But in case of the quick is used for fully tet mesh and hybrid mesh, it is not to be third order discretization scheme.So I remarked. And your last remarks is correct. Regards,

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