Steady State Jet Impingement Heat Transfer from Axisymmetric Plates with and without Grooves

被引：17

作者：

Kannan, B. T. ^{[1
]}

Sundararaj, Senthilkumar ^{[2
]}

机构：

[1] Indian Inst Technol Madras, Dept Aerosp Engn, Madras 600036, Tamil Nadu, India

[2] Vel Tech Univ, Dept Aeronaut Engn, Madras 600062, Tamil Nadu, India

来源：

INTERNATIONAL CONFERENCE ON COMPUTATIONAL HEAT AND MASS TRANSFER (ICCHMT) - 2015 | 2015年 / 127卷

关键词：

numerical simulation; jet impingement; heal transfer; flat plate; grooves; recirculation;

D O I：

10.1016/j.proeng.2015.11.320

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present work is a numerical investigation which examines the effects of geometric parameters on the axisymmetric jet impingement heat transfer. Two cases are considered such as flat plate, and grooved plate. Nozzle diameter (d) of 2 ens is fixed as constant, nozzle-to-plate spacing (II) of 4 cm is used for validation and 8cm for all the other simulations. The jet flow is in the range of fully turbulent flow with Reynolds number of 23,000. Grid independent study reveals each model has its own style of dependency. Validation of the turbulence model for H/d=2 shows secondary peak at exact location. Results about effect or grooves are discussed in detail based on the surface Nusselt number and averaged Nusselt number. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：25 / 32

页数：8

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