CAJ | 학술논문

基于计算流体力学软件FLUENT，采用拉格朗日法，提出了一种求取旋转部件表面水滴收集系数的方法，并采用用户自定义函（UDF）予以实现。将该方法运用于发动机旋转整流帽罩的水滴撞击特性研究，结果表明：随着帽罩锥体锥角及转速的增大，帽罩表面的局部水收集系数沿其表面外形线下降较快，且撞击区域变小。
기우계산류체역학연건FLUENT，채용랍격랑일법，제출료일충구취선전부건표면수적수집계수적방법，병채용용호자정의함（UDF）여이실현。장해방법운용우발동궤선전정류모조적수적당격특성연구，결과표명：수착모조추체추각급전속적증대，모조표면적국부수수집계수연기표면외형선하강교쾌，차당격구역변소。
Based on the Computational Fluid Dynamics software FLUENT, a Lagrangian method is present- ed to numerically simulate supercooled droplets impingement on the wall of rotating components by employ- ing user defined function （UDF）; the method was applied to study the impinging characteristics of the rotat- ing fairing of aero-engine. The computational results indicate that as the cone angle and the rotating speed grow, the collection efficiencies fall rapidly and the impingement limits become small along the surface.