CAJ | 학술논문

以提高单级风扇压比为目标，深入研究已有高压比风扇技术，提出一种新型双排串列、斜流风扇结构。针对串列风扇气动布局的新特征，发展了串列风扇通流设计方法及基于非均匀有理B样条叶型中线生成方法。利用新建立的气动设计系统，进行了串列风扇气动布局设计与分析，开展了高负荷串列叶片流动匹配研究，并采用三维造型等多项先进技术，成功实现了进口全超声串列静叶设计。三维数值模拟结果显示：新结构串列风扇动叶之间流动匹配良好，超声静叶激波后的流动分离得到有效控制，高负荷条件下串列风扇仍保持良好性能。
이제고단급풍선압비위목표，심입연구이유고압비풍선기술，제출일충신형쌍배천렬、사류풍선결구。침대천렬풍선기동포국적신특정，발전료천렬풍선통류설계방법급기우비균균유리B양조협형중선생성방법。이용신건립적기동설계계통，진행료천렬풍선기동포국설계여분석，개전료고부하천렬협편류동필배연구，병채용삼유조형등다항선진기술，성공실현료진구전초성천렬정협설계。삼유수치모의결과현시：신결구천렬풍선동협지간류동필배량호，초성정협격파후적류동분리득도유효공제，고부하조건하천렬풍선잉보지량호성능。
A new type of double row tandem oblique flow fan was proposed to increase the single stage fan pressure ratio. The tandem fan through-flow design method and blade camber line generation method based on the non-uniform B spline were developed. Adopting the new characteristic of tandem fan aerodynamic layout, the design and analysis of tandem fan aerodynamic layout, and the flow matching investigation of high loading tandem blade row were carried out. The supersonic tandem stator was designed successfully by applying the three-dimensional blade design. The numerical simulation indicated that the flow matching of tandem fan blade was fine, the flow deviation after the shock wave was controlled effectively, and the good performance of tandem fan was kept at the high loading conditions.