CAJ | 학술논문

基于经典空气动力学方法设计了一种手动可调的喷射器，分析压缩喷射式混合制冷系统中流量分配系数、高低温蒸发温度对喷射器设计最优尺寸影响，采用计算流体力学(CFD)软件对可调喷射器内部速度场和压力场进行数值模拟，仿真的喷射系数计算值与实验值吻合较好，表明采用 CFD 软件可以较好地预测单相喷射器的工作性能，同时分析了主流体压力、引射流体压力及出口流体压力对喷射器性能影响。
기우경전공기동역학방법설계료일충수동가조적분사기，분석압축분사식혼합제랭계통중류량분배계수、고저온증발온도대분사기설계최우척촌영향，채용계산류체역학(CFD)연건대가조분사기내부속도장화압력장진행수치모의，방진적분사계수계산치여실험치문합교호，표명채용 CFD 연건가이교호지예측단상분사기적공작성능，동시분석료주류체압력、인사류체압력급출구류체압력대분사기성능영향。
An adjustable ejector was designed based on classical aerodynamic method. In compression ejection hybrid refrigeration system, the influence of mass flow distribution ratio, high and low evaporating temperature on the ejector optimal dimension was also analyzed. The velocity field and pressure field of the adjustable ejector was simulated by CFD software. And the simulated ejector ratio was agreed with experimental ejector ratio well, which indicated that the working performance of single-phase ejector could be predicted well by CFD software. Moreover, the effect of primary flow pressure, suction flow pressure and out flow pressure on ejector ratio was investigated.