[kailashpp1990]

Are all inviscid flows considered with slip condition at a solid boundary ? I am new to CFD.
A 2-D flow field consisting of a channel. The flow is assumed to be
frictionless, incompressible, steady and irrotational. Are the horizontal and vertical velocities along the top and bottom boundaries 0 ? 2D flow field is a rectangle with inflow in 1 side and outflow in the opposite.

[tas38]

Originally Posted by kailashpp1990

Are all inviscid flows considered with slip condition at a solid boundary ? I am new to CFD.
A 2-D flow field consisting of a channel. The flow is assumed to be
frictionless, incompressible, steady and irrotational. Are the horizontal and vertical velocities along the top and bottom boundaries 0 ? 2D flow field is a rectangle with inflow in 1 side and outflow in the opposite.

Regarding potential flows, rather than enforcing a no slip condition at solid walls as in viscid simulations, a no penetrating boundary condition is enforced. In this regard there is 'slip' at solid boundaries. For the channel flow example you described, The velocities normal to the channel walls will be zero and those tangential will be non-zero.