Incompressible Definition and 59 Threads

Hi all I am really confused with what is the actual meaning of compressible and incompressible flow?

The Navier-stokes equations have no definite understanding of how it works; does the incompressible viscous and inviscid flow have a definite understandings (Hannah and Stephens)

Homework Statement Hi, I'm trying to follow the proof for the statement \nabla . u = 0 I'm basing it off this paper: http://delivery.acm.org/10.1145/1190000/1185730/p1-bridson.pdf?key1=1185730&key2=4151929021&coll=GUIDE&dl=GUIDE&CFID=25582973&CFTOKEN=82107744 (page 7, 8) In...

Incompressible Fluid simulation - SPH doesn't work :( Hello all, I've been stuck in my project: Fluid Simulation using Smoothed Particle Hydrodynamics for a few days now. I do understand the core principle that fluid properties are calculated by integration on kernel W with range h. But...

a perfect and incompressible fluid flowing in circular path about a center. the flow is two-dimensional and steady. I need to find differential relation between the pressure and the tangential velocity and the radial distance.?? I couldn't find which eqn i can use for this problem. I first...

I'm trying to find a simply derivation of the incompressible navier-stokes equations, as stated in the official problem description at the cmi website, or in "The Millenium Problems", by Keith Devlin: \frac{\partial u}{\partial t}+(u\cdot\nabla)u=f-\nabla p+\nu\Delta u \nabla\cdot u=0 I...

Incompressible Flow: Assumptions for its validity After a recent hot discussion brought to the board, I think it would be good to clear up this question. Firstly, it does not make sense to talk about an incompressible fluid. There are no incompressible fluids in the Nature, we can only...

why does div(v)=0 for a fluid means that the fluid is incompressible?

Given the following equation: Cp = Cv + R Where Cp is specific heat (constant pressure), Cv is specific heat (constant volume), and R is the universal gas constant. However, my book states that for an incompressible fluid, Cp = Cv. How can this be the case given the above equation...