Numerical modelling of thermal processes in an electrical transformer dipped into polymerised resin by using commercial CFD package fluent

被引：18

作者：

Smolka, J ^{[1
]}

Nowak, AJ

Wrobel, LC

机构：

[1] Silesian Tech Univ, Inst Thermal Technol, PL-44101 Gliwice 22, Poland

[2] Brunel Univ, Dept Mech Engn, Uxbridge UB8 3PH, Middx, England

来源：

COMPUTERS & FLUIDS | 2004年 / 33卷 / 5-6期

关键词：

D O I：

10.1016/j.compfluid.2003.06.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper discusses a numerical model of the heat dissipation processes in an electrical transformer dipped into polymerised resin. The transformer is cooled by both natural convection (via the ambient air) and forced convection (via the water cooling system attached to the bottom wall). In order to improve the modelling of the natural convection problem, an independent geometrical model of the surrounding air was created and considered separately. The continuity of temperature and heat flux along the interface between transformer and air was enforced by an iterative procedure. This procedure allowed one to calculate and then prescribe local heat fluxes to the external walls of the transformer. The numerical results obtained with the present model were compared to those for the transformer with prescribed average values of the boundary conditions. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：859 / 868

页数：10

共 8 条

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