CAJ | 학술논문

对螺旋曲面通道壁面上设置三角翼和椭圆柱两种组合涡发生器进行了研究，利用计算机流体软件Fluent进行数值模拟，在雷诺数Re为4000～7000范围内，研究组合间距s、三角翼攻角α、椭圆柱攻角β对换热的影响。由正交实验对涡发生器的结构进行整体优化，得出影响换热因素的主次顺序及优化组合结构，并通过实验比较优化结构与常规结构的综合强化换热效果。结果表明当s＝90 mm、α＝45°、β＝45°时，其综合换热效果最佳。
대라선곡면통도벽면상설치삼각익화타원주량충조합와발생기진행료연구，이용계산궤류체연건Fluent진행수치모의，재뢰낙수Re위4000～7000범위내，연구조합간거s、삼각익공각α、타원주공각β대환열적영향。유정교실험대와발생기적결구진행정체우화，득출영향환열인소적주차순서급우화조합결구，병통과실험비교우화결구여상규결구적종합강화환열효과。결과표명당s＝90 mm、α＝45°、β＝45°시，기종합환열효과최가。
In this paper , thearray configurationof delta wing and elliptical cylinder on the spiral surface channelwall layers of combination vortex generator are studied.Based on numerical simulationof the Fluent software, the influence of three parame-ters to heat transfer, including assembly distances, triangle wing angle of attackαand elliptical cylinder angle of attack βare discussed within the Reynolds number Re range from 4000 to 7000 .Then the structure of vortex generator is entirely optimized by orthogonal experiment ,an order of priority and optimum composition structure on heat transfer are obtained , and by experi-mental comparison ,heat transfereffect is reinforced by optimizing structure and normal structure of composite. The results show ifα=45°,β=45°,s=90mm , the comprehensive effect of heat exchanger will be the best.