open TELEMAC-MASCARET The mathematically superior suite of solvers

hi everyone

A question about telemac solutions. Telemac 2d considers the centripetal acceleration in the curves of the channels? Is there any correction due to the collision of the flow with the walls? I have some solutions and I get, for example, that there is a higher velocity in the center of the channel than in the outer edge of the channel in a curve, which seems illogical to me.

Thanks

Joaquin

Hello,

Centripetal acceleration and correction due to the collision with the walls are not specifically taken into account since they are natural consequences of the momentum equation and the continuity equation.

In a curved channel, considering the head along a trajectory does show that the velocity is higher where the curvature radius is smaller. Think of the pressure in the curve due to the centrifugal force, then think that where the pressure is higher the velocity will be smaller to preserve the head... It is true that it goes against intuition but what you observe is correct.

With best regards,

Jean-Michel Hervouet