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egge24 October 17, 2012 18:33

Porous jump boundary condition
 
Hi all,

I'm modelling a tidal turbine using the porous jump boundary condition. Does anyone know how to relate input parameters of the porous jump boundary condition (Face Permeability, Porous medium thickness and Pressure-jump Coeff.) with thrust coefficient?

The next figure shows centerline Ux velocities along the domain for different Pressure-jump coeff. As the coeff. increases, velocity at disk decreases as expected, but downstream velocity recovers faster. Is this what I should expect?

http://imageshack.us/a/img825/9454/uxvelocities.jpg

eng_s_sadeghi October 20, 2012 13:30

You should find the formulas special for your problem in your references related to this process.


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