I am using DualSPHysics to do a simulation with a floating object which is first moving in water and then in air. When I do it with water (rhop = 1000, gamma = 7, relativeweight=1.3) then every thing is working fine. But if I change the fluid to air I start loosing a lot of particles very fast (rhop = 1.18, gamma = 1.4, relativeweight=1101.7).
So how should I go about changing the parameters if I want to simulate air instead of water in single phase? I've tried massbody for floating, but it hasn't really worked for me, since that when I use water the massbound is: 1e-6, but when I use air it suddenly becomes 1e-9 even though I use the correct massbound. In the water sim I see that I have:
36811 particles * 0.000001 kg = 0,036811kg
And I insert this as:
Am I doing something wrong?
I found a temporary solution in using the MultiPhysics branch and just using one fluid (air) only, but wanted to know if it is possible in single phase solver to do instead.