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Re: ComputeStress Function – Error ?

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› Forums › OpenLB › General Topics › ComputeStress Function – Error ? › Re: ComputeStress Function – Error ?

June 6, 2016 at 5:59 pm #2351
mathias
Keymaster

In NS equation, it is the pressure gradient that is to be found and not the pressure. Therefore, pressure is definded up to a constant, so that “”rho-1″” or “”rho”” should result in the same solution of NS equation. Using “”rho-1″” brings the pressure constant to zero, since usualy rho is set to be 1 + h^2. Do you see any differences in the result? Best Mathias