Tip clearance has much effect on the properties of aero - engine . as the reference of the project design , the numerical computation of tip clearance can improve the aero - engine performance , reliability and to reduce the specific fuel consumption ( sfc ) 葉尖間隙對航空發(fā)動機性能有較大的影響,研究葉尖間隙的數(shù)值分析技術(shù)可以為工程設(shè)計提供參考,從而提高航空發(fā)動機的工作性能、可靠性和耐久性。