Most Efficient Numerical Method for Solving Boundary Layer Flows
hi friends,:)
Can anyone tell me about some efficient n stable numerical schemes to solve Boundary Layer Flow Problem. thanks With profound regards. samina :) |
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which kind of boundary layer problem? If it is 2D and over a flat plate, solving Blasius equation is straightforward. check this :http://moon.pr.erau.edu/~gallyt/ae30...ricBlasius.pdf If the geometry is more complex than flat plate, use any good Navier-Stokes solver. |
thanks leflix,
you suggested a goood link. My problem is not on an easy geometry, its the BVP for the flow over an expanding stretching cylinder, (in cylindrical coordinates) 3D geometry :confused: |
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One more issue,I have NS eq of order four, while i have only three boundary conditions..
What should i do for the missing condition. Regards :) |
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Obviously, 2nd order PDEs (NS eqs for the viscous fluid).
but when i convert these equations to ODE, by using similarity transform for the stretching surfaces, order of the differential equation is raised by 1, so it becomes 3rd order ODE. And when i solve the same problem for the 2nd grade fluid, i get ODE of order 4 :confused: |
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Sorry, I don't know what a 2nd grade fluid is, but if you have 3 BCs from the similarity ( I assume what you are doing is similar to the classical blasius solution, which is a 3rd order PDE), then the last one has to come from this 2nd grade fluid, whatever that might be :) |
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