Fluid Flow and Mixed Heat Transfer in a Horizontal Channel with an Open Cavity and Wavy Wall
作者机构:Department of Mechanical EngineeringUniversity of BonabBonabIran Science and Math ProgramAsian University for WomenChattogramBangladesh Energy Management GroupEnergy and Environment Research CenterNiroo Research InstituteTehranIran Department of Mechanical EngineeringElm-o-Fann University College of Science and TechnologyUrmiaIran Mechanical Engineering DepartmentCollege of EngineeringKing Khalid UniversityAbha61421Saudi Arabia
出 版 物:《Intelligent Automation & Soft Computing》 (智能自动化与软计算(英文))
年 卷 期:2023年第37卷第7期
页 面:147-163页
核心收录:
学科分类:080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理]
基 金:Deanship of Scientific Research King Khalid University (2/235/43)
主 题:Mixed heat transfer wavy wall horizontal channel open cavity numerical simulation
摘 要:Heat exchangers are utilized extensively in different industries and ***,optimizing heat exchangers has been a major concern among *** various studies have been conducted to improve the heat transfer rate,the use of a wavy wall in the presence of different types of heat transfer mechanisms has not been *** study thus investigates the mixed heat transmission behavior of fluid in a horizontal channel with a cavity and a hot,wavy *** fluid flow in the channel is considered laminar,and the governing equations including continuity,momentum,and energy are all solved *** numerical solution is stabilized by using a first-order multi-dimensional characteristic-based scheme in combination with a fifth-order Runge-Kutta *** flow and heat transfer effects of varying Richardson numbers,Reynolds numbers,wave amplitude,wavelength,channel height,and cavity width are *** results indicate that the mean Nusselt number increases with an increase in Reynolds number,wave amplitude,and cavity width,while it decreases with an increase in Richardson number,wavelength,and channel *** minimum Nusselt number is calculated to be 0.7,whereas the maximum Nusselt number is *** Nusselt number has only increased by 40%in the higher depths of the cavity,despite the Richardson number being 10,000 times *** this figure increases to 130%at lower *** mean Nusselt number is thus significantly influenced by channel height and cavity *** influence of wave amplitude on the mean Nusselt number is twice that of wavelength.