Register to reply 
Stream function along solid boundary 
Share this thread: 
#1
Jun514, 08:14 AM

P: 1

Hi, I am studying fluid mechanics and I am trying to get to grips with slip and noslip boundaries.
I know that: Slip > Occurs when fluid is inviscid so no viscous stress at boundary. Noslip > Viscous effects mean the the tangential velocity must be zero, relative to the boundary. Also, for both slip and noslip boundary conditions you have no normal flow if the boundary is solid and impermeable. However, the problem I have is that some say that if you have the no normal flow condition, then the stream function is constant regardless of whether it is a slip/noslip boundary (http://scicomp.stackexchange.com/que...reamfunctions). My lecturer however said that the stream function is constant only when it is a slip boundary. Any thoughts? Who is correct? 


#2
Jun514, 10:14 PM

Mentor
P: 5,370

Look up in the literature the solutions for inviscid and viscous flow past a sphere. In both cases, the stream function is constant on the sphere. Chet 


Register to reply 
Related Discussions  
How to calculate the stream function from the potential function?  Classical Physics  0  
Stream function  Classical Physics  1  
Why must stream function be 2d?  Classical Physics  1  
Stream Function in 3D  Classical Physics  0  
Stream Function  Calculus & Beyond Homework  1 