10-06-2019, 08:37 AM
(08-06-2019, 10:47 AM)Belisica Wrote: I consider getting the Obi Fluid asset for 2d simulations. This thread answered many of my questions. To elaborate further: Can air be simulated (volum, pressure) together with water such that a barometer can be simulated? When an air volum is under variable outside air pressure, will it change its volume?
Only to an extent. Atmospheric pressure is simulated as a force parallel to the fluid surface normal. Specifically, we implemented eqns. (13) and (14) in this article:
http://gamma.cs.unc.edu/SPH_GAS/sph_gas.pdf