涡轮增压器蜗壳喷嘴出口速度计算  

NUMERICAL SIMULATION OF VELOCITY DISTRIBUTION AT SCROLL NOZZLE OF TURBOCHARGER

作　　者：滕敦朋[1] 房克信[2] 马仁[1] 

机构地区：[1]青岛海军潜艇学院,青岛266071 [2]上海交通大学动力与能源工程学院,上海200030

出　　处：《青岛大学学报（工程技术版）》2002年第1期9-12,共4页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：以k -ε双方程模型模拟车用柴油机涡轮蜗壳内的气体流动情况 ,以心形线拟合蜗壳的通流截面 ,用SIMPLEST算法对驿蜗壳喷嘴出口气流角和速度的分布情况进行了三维数值计算 ,并将计算结果与实测流场进行了比较 ,两者分布规律吻合较好。Numerical simulation of the three dimensional turbulent flow field inside a turbocharger scroll is described and k-ε two equation model is used to simulate the flow in the scroll.Cardioid is used to simulate the outline of the flow area of the cross section.The velocity distributions at the scroll nozzle outlet are calculated with SIMPLEST method.The comparison between the calculation and experiment shows that the two results are on good coincide.

关 键 词：k-ε模型 蜗壳 心形线 喷嘴 涡轮增压器 出口速度 计算 汽车 柴油机 气体流动 

分 类 号：TK423.5[动力工程及工程热物理—动力机械及工程]