secondary flow loss meaning in English
二次流损失
Examples
- By choosing reasonable suction location and combination , the large scale profile separation can be well controlled , but the effect on decreasing the secondary flow loss is limited
计算结果表明，通过选用合理的抽吸位置及抽吸方式的组合，附面层抽吸能较好地控制叶栅内的大尺度的叶片表面分离流动，但对二次流损失的改善效果并不明显。 - A new aerodynamic design system developed by authors for draft fan with enhanced efficiency , suppressed noise , enlarged flux and high load . the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production . this design system can make the optimized blade with " forward inclination " , " inclining sweep " , " bending sweep " , to minimize the various secondary flow losses , to expand the steady working range of the fan , and to suppress the aerodynamic noise source
本文通过对一种新型高性能矿用局部通风机的设计、制造及试验全过程的综述，展现了新的先进设计体系在民用通风机上的成功运用，其研制特点是： ( 1 )在叶片气动设计中为了降低叶根及叶尖区二次流损失，采用可控涡扭向规律设计，样机实测的高性能验证了这种方法的可行性和高效性； ( 2 )在设计方法中采用较精确的数值反验算，获取最优设计方案，大大提高设计的准确性和成功率，并缩短了设计试制周期； ( 3 )在设计过程中发展了计算机辅助三维叶片造型新方法，可以根据设计需要简便快捷地对叶片进行“前倾” 、 “倾掠”或“弯掠”造型，这些造型对减小各种二次流损失、扩大稳定工况范围和控制叶轮机气动噪声源起到了非常好的作用。 - Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency , suppressed noise , enlarged flux and high load . the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production . this design system can make the optimized blade with " forward inclination " , " inclining sweep " , " bending sweep " , to minimize the various secondary flow losses , to expand the steady working range of the fan , and to suppress the aerodynamic noise source
文摘:本文通过对一种新型高性能矿用局部通风机的设计、制造及试验全过程的综述，展现了新的先进设计体系在民用通风机上的成功运用，其研制特点是： ( 1 )在叶片气动设计中为了降低叶根及叶尖区二次流损失，采用可控涡扭向规律设计，样机实测的高性能验证了这种方法的可行性和高效性； ( 2 )在设计方法中采用较精确的数值反验算，获取最优设计方案，大大提高设计的准确性和成功率，并缩短了设计试制周期； ( 3 )在设计过程中发展了计算机辅助三维叶片造型新方法，可以根据设计需要简便快捷地对叶片进行“前倾” 、 “倾掠”或“弯掠”造型，这些造型对减小各种二次流损失、扩大稳定工况范围和控制叶轮机气动噪声源起到了非常好的作用。