Analysis of Film Cooling Effectiveness on Shaped Hole and Antivortex Hole

作     者：MAY Kyu Kyu Soe 

作者机构：School of Jet PropulsionBeijing University of Aeronautics and Astronautics 

出 版 物：《Computer Aided Drafting,Design and Manufacturing》 (计算机辅助绘图设计与制造（英文版）)

年 卷 期：2010年第20卷第2期

页      码：30-35页

摘      要：Film cooling is introduction of a secondary fluid （coolant or injected fluid） at one or more discrete locations along a surface exposed to a high temperature environment to protect that surface not only in the immediate region of injection but also downstream region. This paper numerically investigated the film cooling effectiveness on two types of hole geometries which are cut-shaped hole and antivortex hole. The 3D computational geometries are modeled with a single 30 deg angled hole on a flat surface. The different blowing ratios of 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5,5 and k-Epsilon turbulence model are used in this study. A two dimensional distribution of film cooling effectiveness in the downstream region of the cooling hole is performed. A comparison of spanwise averaged effectiveness is also performed in the field starts from center point of hole to X/D=-30.

主 题 词：turbine blade film cooling shaped hole antivortex hole film cooling effectiveness blowing ratio k-Epsilon turbulence model. 

学科分类：080701[080701] 08[工学] 0807[工学-电子信息类] 

D　O　I：10.19583/j.1003-4951.2010.02.005

馆 藏 号：203610840...