@jojodi I suppose it would be better, then, to say that I have a preference for the MAC grid and tetrahedral discretizations? I always thought that LBM solves the Boltzmann Equation, not the NSE, and although one may be derived from the other, I've always considered them mathematically (if not conceptually) distinct...
@shinWangXiao LBM is a discrete method of evolving the state of a fluid using NSE. It's not one or the other. LBM, SPH, FD, FEM, and many other methods allow people to find the evolution of a fluid over time. LBM is derived through a multi-scale expansion of the NSE.
NSE would cause lot of trouble during the mixture procedure of the water flow and the waves in lower left corner (two-phase transition with "air" or whatever obove)
Definitely not using NSEs... it looks a lot like Blender which uses (last I checked) the Lattice-Boltzmann Method... I don't think the poster is claiming that this IS an NSE simulation though, just the title of this particular work...
The flow you show has seperation. I thought that once seperation occurs you can no longer rely on the Navier-Stokes equations.
IconicFiber 1 year ago
@jojodi I suppose it would be better, then, to say that I have a preference for the MAC grid and tetrahedral discretizations? I always thought that LBM solves the Boltzmann Equation, not the NSE, and although one may be derived from the other, I've always considered them mathematically (if not conceptually) distinct...
shinWangXiao 1 year ago
@shinWangXiao LBM is a discrete method of evolving the state of a fluid using NSE. It's not one or the other. LBM, SPH, FD, FEM, and many other methods allow people to find the evolution of a fluid over time. LBM is derived through a multi-scale expansion of the NSE.
jojodi 1 year ago
yes, indirectly, it was done solving the NS equations.
RBChoman 2 years ago
NSE would cause lot of trouble during the mixture procedure of the water flow and the waves in lower left corner (two-phase transition with "air" or whatever obove)
Looks great, though : )
Dynamikester 2 years ago
ok... :|
Capeau 3 years ago
"navier-stokes"
Where's mah fuckin R in strokes?
Darkomni 3 years ago
Definitely not using NSEs... it looks a lot like Blender which uses (last I checked) the Lattice-Boltzmann Method... I don't think the poster is claiming that this IS an NSE simulation though, just the title of this particular work...
shinWangXiao 3 years ago
great
pikpokpikpok85 3 years ago
Blender 3d?
fastsolve 3 years ago