Understanding of the Interaction between Clearance Leakage Flow and Main Passage Flow in a VGT Turbine
The clearance flow between the nozzle and endwall in a variable geometry turbine (VGT) has been numerically investigated to understand the here clearance effect on the VGT performance and internal flow.It was found that the flow rate through turbine increases but the turbine efficiency decreases with height of clearance.Detailed flow field analyses