Effect of rib arrangements on the flow pattern and heat transfer in internally ribbed rectangular divergent channels

被引：3
作者：
Sivakumar, K. [1 ]
Kumar, T. Sampath [2 ]
Sivasankar, S. [1 ]
Ranjithkumar, V [3 ]
Ponshanmugakumar, A. [4 ]
机构：
[1] SRM Valliammai Engn Coll, Chennai 603203, Tamil Nadu, India
[2] Vellore Inst Technol, Vellore 632014, Tamil Nadu, India
[3] Sri Sai Ram Engn Coll, Chennai 600044, Tamil Nadu, India
[4] Sri Sairam Inst Technol, Chennai 600044, Tamil Nadu, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2021年 / 46卷
关键词：
Heat transfer; Reynolds number; Rib turbulator; Pressure drop; Divergent; TURBULENT; OPTIMIZATION; DUCT;
D O I：
10.1016/j.matpr.2020.11.548
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this article, a numerical investigation is conducted to analyze three-dimensional incompressible Navier-strokes flows through the rectangular divergent square ribbed channels with different Reynolds number value 20,000, 40,000 and 60,000 having five different configurations of square ribs (p/e = 2.5, 3.33, 5, 10, and 20) has been used as roughness element. The commercial finite-volume based CFD code ANSYS FLUENT is used to simulate turbulent airflow through the channels. The RNG k-e turbulence model is used to solve the transport equations for turbulent flow energy and dissipation rate. Detailed results about average heat transfer and fluid friction in a rectangular divergent square channel are presented and discussed. (C) 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Materials, Manufacturing and Mechanical Engineering for Sustainable Developments-2020.
引用
收藏
页码：3379 / 3385
页数：7
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