When gravity is 0, can "DensityDT = 3" be used?

jinyao

jinyao

September 2022 in DualSPHysics v4.4

I want to know if I can use "DensityDT = 3" in the case of "gravity=0"?

Comments

Myiced

December 2022

yes, but I think there is no difference between ddt=1 &3 without gravity
zweihuehner

January 2023

I agree with @Myiced that the two formulations collapse to one another. So you could probably use it, but you wouldn't see a difference in results (because the hydrostatic component of the densities effectively becomes zero).

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