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MANOJKUMAR December 22, 2005 06:04

Help: Negative Volume
I have constructed a model of the furnace. In this when i mesh one of the volume and then summarize the meshed volume then it shows that the meshed volume is negative volume. Please tell me the way to remove the negative volume.Does this negative volume has any effect when i export the model in Fluent and carry out the analysis over there. Thank you

HVN December 22, 2005 06:17

Re: Help: Negative Volume
If you have a negative voulume, Fluent will diverge normally at the first iteration.

The only way to remove a negative volume is to remesh.

MANOJKUMAR December 22, 2005 06:38

Re: Help: Negative Volume
i have tried all type of the meshing in the negative volume but it doesnot disappear.. so i created virtual volume in the negative volume and meshed it. then negative volume disappeared. is this method correct?

KP December 22, 2005 10:59

Re: Help: Negative Volume
are u using symmetry? KP

MANOJKUMAR December 23, 2005 00:22

Re: Help: Negative Volume
No i am not using symmtry.

HVN December 23, 2005 04:04

Re: Help: Negative Volume
For myself, i change size parameter or something else before remeshing.

MANOJKUMAR December 23, 2005 05:08

Re: Help: Negative Volume
I have change the size parameter but still I am getting the negative volume.

HVN December 23, 2005 05:13

Re: Help: Negative Volume
Do you clean your cad geometry after import?

MANOJKUMAR December 24, 2005 05:59

Re: Help: Negative Volume
Thanks atually i made the geomtry in Gambit it self. it is neccessary.

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