Computational fluid dynamics modelling and validation of the isothermal airflow in a forced convection oven

被引：59

作者：

Verboven, P ^{[1
]}

Scheerlinck, N ^{[1
]}

De Baerdemaeker, J ^{[1
]}

Nicolai, BM ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Agroengn & Econ, B-3001 Heverlee, Belgium

来源：

JOURNAL OF FOOD ENGINEERING | 2000年 / 43卷 / 01期

关键词：

D O I：

10.1016/S0260-8774(99)00131-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This article discusses the application of computational fluid dynamics (CFD) to calculate the three-dimensional isothermal airflow in an industrial electrical forced-convection oven. The governing fluid flow equations were expanded with a fan model and a turbulence model. The standard and the renormalisation group (RNG) version of the k-epsilon turbulence model produced comparable results. The performance of the CFD model was assessed by means of point measurements of the velocity with a directionally calibrated hot-film velocity sensor. From the validation it was found that important aspects of the model are the fan head-capacity relationship, the fan swirl and the oven geometry. The calculation error was on an average 22% of the actual velocity, caused by the limitations in turbulence modelling and numerical grid density. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：41 / 53

页数：13

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