Since the turbine pace lags on a regular basis at the rear of the impeller (pump) speed, the velocity ratio is below one. Consequently There's friction while in the transmission fluid which ends up in electric power losses. The dynamic centrifugal force from the ATF is identical on both sides https://torque-converter-clutch25792.aboutyoublog.com/37779749/fascination-about-torque-converter-clutch