Acceleration. The load is accelerating but there still is a relatively significant difference between impeller and turbine velocity. Underneath this ailment, the converter will make torque multiplication that is definitely under what could be accomplished under stall problems. In the casing, fluid is driven by centrifugal power through the pump. https://torqueconverterclutch57899.blue-blogs.com/41291096/the-basic-principles-of-torque-converter-clutch