Body Force/Gravity

[TZiegler]

Hey,

I want to use gravity in my calculation. In the Tutorial 2: "Linear elasticity equation – Loaded
elastic beam" the gravity is realised by adding a body force:
Model
BodyForce
Name = Gravity
Linear Elasticity
Force 2 = $ -9.81 * 550
where 550 is the density of the material. In one statement in the forum
(viewtopic.php?f=3&t=100&p=332&hilit=bod ... nsity#p331)
however I found that the body force will be multiplied with the density in the code. What is correct?

Cheers
Tobias

[raback]

Hi

It seems that there are mixed conventions:
- In StressSolve body force is not automatically multiplied by density (edit, was gravity)
- In FlowSolver body force is automatically multiplied by density (edit)

-Peter

[TZiegler]

Hi Peter,

thanks for the quick answere. Did you mean density or gravity? If you ment gravity, please expand a bit on what exactly happens with the body force input.

Cheers
Tobias

[Juha]

Hi,
yes, Peter surely meant "density" instead of "gravity".
Regards, Juha