透平叶顶泄漏能量损失的数值计算

V231.3; 商用N-S求解器已经被用于透平动叶顶部空隙的非定常流场的模拟和研究.本文介绍了一种新的用于透平动叶片顶部空隙区域流场计算的能量损失方法,可以方便地用于各种流场.发现高黏度效应区域位于上端壁附近而不是在叶片顶部.研究表明对于不同的动叶片其顶部泄流的能量时均损失是不一样的.该结果提供了一个有用的线索,可以通过叶片设计者设计出不同几何和空气动力学参数的非统一的动叶片,从而减小能量损失....

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Published in中国航空学报(英文版) Vol. 17; no. 3; pp. 142 - 148
Main Authors Mohsen Hassanvand, 王松涛, 冯国泰, 王仲奇
Format Journal Article
LanguageChinese
Published School of Energy Engineering, Harbin Institute of Technology, Harbin 150001, China 2004
Subjects
tip clearance,unsteady flow
能量损失
间隙
energy loss
tip leakage flow
叶顶泄漏
非定常
Online AccessGet full text
ISSN1000-9361

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Abstract V231.3; 商用N-S求解器已经被用于透平动叶顶部空隙的非定常流场的模拟和研究.本文介绍了一种新的用于透平动叶片顶部空隙区域流场计算的能量损失方法,可以方便地用于各种流场.发现高黏度效应区域位于上端壁附近而不是在叶片顶部.研究表明对于不同的动叶片其顶部泄流的能量时均损失是不一样的.该结果提供了一个有用的线索,可以通过叶片设计者设计出不同几何和空气动力学参数的非统一的动叶片,从而减小能量损失.
AbstractList V231.3; 商用N-S求解器已经被用于透平动叶顶部空隙的非定常流场的模拟和研究.本文介绍了一种新的用于透平动叶片顶部空隙区域流场计算的能量损失方法,可以方便地用于各种流场.发现高黏度效应区域位于上端壁附近而不是在叶片顶部.研究表明对于不同的动叶片其顶部泄流的能量时均损失是不一样的.该结果提供了一个有用的线索,可以通过叶片设计者设计出不同几何和空气动力学参数的非统一的动叶片,从而减小能量损失.
Abstract_FL A commercial N-S solver has been employed for simulation and investigation of the unsteady flow field inside the tip clearance of a turbine rotor. The main objective of this paper is to introduce a new method of energy loss calculation for the flow field in tip clearance region of a turbine rotor blade. This method can be easily used in all kinds of flow fields. Regions of high viscous effects have been found to be located near the shroud rather than the blade tip. It is shown that the time-averaged loss of energy in tip leakage flow is dissimilar for different rotor blades. This result is a helpful hint that can be taken by blade designers to design non-uniform rotor blades with different geometric and aerodynamic loads to minimize the energy loss.
Author 王松涛
王仲奇
Mohsen Hassanvand
冯国泰
AuthorAffiliation School of Energy Engineering, Harbin Institute of Technology, Harbin 150001, China
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Mohsen Hassanvand
WANG Zhong-qi
WANG Song-tao
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DocumentTitle_FL Calculation of the Energy Loss for Tip Leakage Flow in Turbines
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Keywords tip clearance,unsteady flow
能量损失
间隙
energy loss
tip leakage flow
叶顶泄漏
非定常
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Snippet V231.3; 商用N-S求解器已经被用于透平动叶顶部空隙的非定常流场的模拟和研究.本文介绍了一种新的用于透平动叶片顶部空隙区域流场计算的能量损失方法,可以方便地用于各种流...
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Title 透平叶顶泄漏能量损失的数值计算
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