[tellz]

Greetings,

i have some external forces which values are constant and already measured in N (Newton dimension). Can i put those values using N dimension in Navier-Stokes equation or i have to do some transformations before that?

thanks in advance!

[FMDenaro]

Originally Posted by tellz

Greetings,

i have some external forces which values are constant and already measured in N (Newton dimension). Can i put those values using N dimension in Navier-Stokes equation or i have to do some transformations before that?

thanks in advance!

You need to scale the force in Newton by the volume

[tellz]

Originally Posted by FMDenaro

You need to scale the force in Newton by the volume

i considered values of my force by X, Y and Z direction. But it is still N dimension. Im afraid that it will cause incorrect results.

[LuckyTran]

A force acts on a point. You need to distribute that force over the volume having units like N/m^3 or pressures over an area. CFD is fluid mechanics (with volumes), not physics on point particles.