Asymmetrical effects in a 2D stenosis

An integral Interacting Boundary Layer theory is presented for the steady laminar flow in a asymmetrical bidimensional channel at high Reynolds number. The effect of asymmetry of the geometry is taken into account into the ideal fluid pressure expression. The effect is small but noticeable. Comparison with a Navier-Stokes solution shows the trend of asymmetry: increasing the pressure drop on the more curved wall, decreasing it on the other. Separation and reattachment of the boundary layer are obtained and compare well.