CAJ | 학술논문

为改进液力变矩器叶栅设计的等环量分配法，提出了环向匀加速环量分配方法。将液力变矩器内部流体质点的运动分解为轴面运动和环向运动，并基于动量矩方程和速度环量表达式推导出叶片环向分力的表达式，进而得到速度环量分配与束流环向加速形式的关系。在确保束流环向加速过程稳定的前提下得到了环向匀加速环量分配方案，并与等环量分配方案进行对比分析。应用计算流体力学对采用这两种方案设计的叶片液力变矩器进行性能预测，结果验证了文中提出的环向匀加速环量分配方法的有效性。
위개진액력변구기협책설계적등배량분배법，제출료배향균가속배량분배방법。장액력변구기내부류체질점적운동분해위축면운동화배향운동，병기우동량구방정화속도배량표체식추도출협편배향분력적표체식，진이득도속도배량분배여속류배향가속형식적관계。재학보속류배향가속과정은정적전제하득도료배향균가속배량분배방안，병여등배량분배방안진행대비분석。응용계산류체역학대채용저량충방안설계적협편액력변구기진행성능예측，결과험증료문중제출적배향균가속배량분배방법적유효성。
In this paper,a new momentum distribution method with circumferential uniform acceleration is pro-posed to improve the traditional momentum distribution method used in the blade design of hydraulic torque conver-ter (HTC).In this method,the fluid particle movement inside the HTC is decomposed into the axis plane move-ment and the circumferential movement,and the equation of circumferential force of blades is derived based on the equations of the angular momentum and the velocity momentum.Then,the relationship between the velocity mo-mentum and the circumferential movement is obtained,and the new momentum distribution scheme with circumfer-ential uniform acceleration is obtained with a stable circumferential acceleration process of flow bundle.The new scheme is compared with the traditional momentum distribution scheme,and the computational fluid dynamics (CFD)is utilized to predict the performance of the HTC designed according to the new and traditional schemes. Thus,the effectiveness of the new momentum distribution method is verified.