内燃机与动力装置
內燃機與動力裝置
내연궤여동력장치
INTERNAL COMBUSTION ENGINE & POWERPLANT
2012年
6期
21-25
,共5页
范厚传%王航%刘云岗%朱智富%袁道军
範厚傳%王航%劉雲崗%硃智富%袁道軍
범후전%왕항%류운강%주지부%원도군
涡轮增压器%蜗壳%矩形截面%圆形截面%涡轮性能%数值模拟
渦輪增壓器%蝸殼%矩形截麵%圓形截麵%渦輪性能%數值模擬
와륜증압기%와각%구형절면%원형절면%와륜성능%수치모의
Turbocharger%Volute%Rectangular Section%Circular Section%Turbine Performance%Numerical Simulation
分别设计了喉口面积相等的矩形截面蜗壳和圆形截面蜗壳，通过数值计算，就两种结构对涡轮性能的影响进行了全工况的比较分析，结果表明，当涡轮采用圆形截面蜗壳时比采用矩形截面蜗壳时的效率高。并通过内部流场的分析揭示了两种蜗壳流动损失差异的原因，为涡轮增压器的进一步开发和匹配提供一定的参考。
分彆設計瞭喉口麵積相等的矩形截麵蝸殼和圓形截麵蝸殼，通過數值計算，就兩種結構對渦輪性能的影響進行瞭全工況的比較分析，結果錶明，噹渦輪採用圓形截麵蝸殼時比採用矩形截麵蝸殼時的效率高。併通過內部流場的分析揭示瞭兩種蝸殼流動損失差異的原因，為渦輪增壓器的進一步開髮和匹配提供一定的參攷。
분별설계료후구면적상등적구형절면와각화원형절면와각，통과수치계산，취량충결구대와륜성능적영향진행료전공황적비교분석，결과표명，당와륜채용원형절면와각시비채용구형절면와각시적효솔고。병통과내부류장적분석게시료량충와각류동손실차이적원인，위와륜증압기적진일보개발화필배제공일정적삼고。
This paper designed a rectangular section volute and a circular section volute respectively. And a comparative analysis on the influences of rectangular section volute and circular section volute on turbine performance under all operating conditions has been done by numerical simulation. The results of the simulation show that the efficiency of the turbine with circular section volute is higher than that of the turbine with rectangular section volute, and the mechanism of the internal flow loss and the difference is disclosed by analyzing the flow field. This paper provides certain theoretical references for further development of turbocharger and turbochargers matching activity.
