Efficient Proper Orthogonal Decomposition for Parameter Dependent Problems with Applications to Hydraulic Turbines

被引：0

作者：

Bistrian, Diana Alina ^{[1
]}

Susan-Resiga, Romeo F. ^{[2
]}

机构：

[1] Politehn Univ Timisoara, Dept Elect Engn & Ind Informat, Hunedoara 331128, Romania

[2] Politehn Univ Timisoara, Dept Hydraul Machinery, Timisoara 300222, Romania

来源：

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2015 (ICNAAM-2015) | 2016年 / 1738卷

关键词：

proper orthogonal decomposition; reduced order modeling; hydraulic machinery; WATER EQUATIONS MODEL; POD; FLOW;

D O I：

10.1063/1.4952203

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A weighted proper orthogonal decomposition method (wPOD) is proposed for analyzing the evolution of the swirling flow exiting the hydraulic turbine runner, strongly influenced by the turbine discharge coefficient. Through orthogonal decomposition, the leading modes of the axial and circumferential velocity profiles can be identified with respect to a simple base flow. By applying the weighted POD on selected perturbation quantities the POD representation of the velocity field is achieved with a number of modes significantly lower comparing with different other techniques.

引用

页数：4

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