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Thermal Analysis, heat flux value

Hi Everybody!

I was doing the OS-T: 1080 Coupled Lineat Heat Transfer/Structure Analysis tutorial and I have question about the heat flux value. This is this step:

They say at the point 7 that we have to enter the value 1.0, but they do not precise what it is. Do you know if it is a temperature and if so, which unit? Or this is something else?

Thank you in advance

Mathilde

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Flux

Accepted answers

Adriano_Koga

This is heat flux (energy per area). Please search at OptiStruct help for QBDY1. If your model is in SI, then it would be W/m2. You apply this heat flux into a conduction surface, meaning you're adding that amount of heat through this particular surface.

QBDY1

Bulk Data EntryDefines a uniform heat flux for CHBDYE elements.

QBDY1 entries must be selected with the Case Control command LOAD=SID in order to be used in static analysis. The total power into an element is given by the equation:(1)
$P_{i n} = (Effective_Area) * Q 0$
This card is represented as a flux load in HyperMesh.

All comments

Adriano_Koga

QBDY1

Bulk Data EntryDefines a uniform heat flux for CHBDYE elements.

QBDY1 entries must be selected with the Case Control command LOAD=SID in order to be used in static analysis. The total power into an element is given by the equation:(1)
$P_{i n} = (Effective_Area) * Q 0$
This card is represented as a flux load in HyperMesh.

Mathilde.L

This is heat flux (energy per area). Please search at OptiStruct help for QBDY1. If your model is in SI, then it would be W/m2. You apply this heat flux into a conduction surface, meaning you're adding that amount of heat through this particular surface.

QBDY1

Bulk Data EntryDefines a uniform heat flux for CHBDYE elements.

QBDY1 entries must be selected with the Case Control command LOAD=SID in order to be used in static analysis. The total power into an element is given by the equation:(1)
$P_{i n} = (Effective_Area) * Q 0$

This card is represented as a flux load in HyperMesh.

Okay thank you very much for your quick answer !