-
公开(公告)号:US20190101002A1
公开(公告)日:2019-04-04
申请号:US16128671
申请日:2018-09-12
Applicant: ROLLS-ROYCE PLC
Inventor: Roger S. DUFFIN , Gabriel GONZALEZ-GUTIERREZ
Abstract: A blade or vane for a gas turbine engine comprising a pressure surface and a suction surface. The pressure surface or the suction surface comprises a roughness zone which is configured to provide greater flow resistance in a direction along the blade or vane than in a direction across the blade or vane.