CAJ | 학술논문

为改进高负荷风扇转子性能，采用了一种工程适用的叶片反问题设计方法。该方法使用粘性CFD与数值优化相结合，适合具有高进口马赫数、高逆压梯度流动特征的高效叶型设计，并应用二维叶型反问题加三维积叠的叶片设计思路，充分继承了已有的基元叶型积叠准则，极大地缩短了计算时间。利用发展的反问题设计平台，完成了叶片的反问题设计。三维数值模拟结果表明：反问题设计的转子叶片能较好地控制转子尖部激波结构，减小激波损失，提高效率，增大稳定裕度。
위개진고부하풍선전자성능，채용료일충공정괄용적협편반문제설계방법。해방법사용점성CFD여수치우화상결합，괄합구유고진구마혁수、고역압제도류동특정적고효협형설계，병응용이유협형반문제가삼유적첩적협편설계사로，충분계승료이유적기원협형적첩준칙，겁대지축단료계산시간。이용발전적반문제설계평태，완성료협편적반문제설계。삼유수치모의결과표명：반문제설계적전자협편능교호지공제전자첨부격파결구，감소격파손실，제고효솔，증대은정유도。
An inverse method of airfoil design adapted for engineering application has been employed to im- prove the performance of high loading fan rotor. The basic ideas of combination of viscous CFD and numeri- cal optimization can meet airfoil design requirements with the element profile flow characteristics of high in- let Mach number and high adverse pressure gradient, etc. Succeeding to the design criterion of element pro- file stacking, the two-dimensional inverse method and three-dimensional stacking can save the computing time greatly. The airfoil design has been carried out by using the inverse method numerical platform. The re- suits of numerical simulation showed that the rotor airfoil designed with the inverse method can control the shock structure, decrease the shock loss, improve the efficiency and increase the surge margin.