Experimental and Computational Analysis of Heat Transfer by a Turbulent Air Jet Impingement on a Flat Surface

被引：1

作者：

Baghel, Yatish Kumar ^{[1
]}

Patel, Vivek Kumar ^{[1
]}

机构：

[1] Motilal Nehru Natl Inst Technol Allahabad, Dept Appl Mech, Prayagraj 211004, India

来源：

ADVANCES IN MECHANICAL ENGINEERING, ICRIDME 2018 | 2020年

关键词：

Turbulent air jet; Jet impingement; Nusselt number; MODELS; PLATE;

D O I：

10.1007/978-981-15-0124-1_10

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Jet impingement is an active method for the heat transfer enhancement and is in practice in a big way in industries where focussed heating or cooling has to be achieved. In the present experimental work, the parameters like Reynolds number and the non-dimensionalized jet to plate spacing (H/D) have been varied to study the variation in the radial distribution of Nusselt number over the Aluminum flat plate. The air jet diameter of 15 mm is used for the analysis. Reynolds number ranging 4000 to 10,000 and H/D is 2 and 4. The experimental results show close agreements with that of the obtained from the numerical results which are calculated using a commercial CFD code ANSYS FLUENT. After through model testing SST k-omega turbulence model is employed to arrive at the results and conclusion. It is concluded that increasing Reynolds number and decreasing the H/D increases the Nusselt number.

引用

页码：85 / 96

页数：12

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