Numerical Investigation of Convective Heat Transfer and Friction in Solar Air Heater with Thin Ribs

作     者：Sanjay K.Sharma V.R.Kalamkar 

作者机构：VNITNagpur 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2018年第114卷第3期

页      面：295-319页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

主　　题：CFD 3D heat transfer friction factor 

摘      要：The three-dimensional numerical investigation of an incompressible flow through rib roughened solar air heater is carried out.A combination of thin transverse and truncated ribs is attached on the absorber plate to study its effect on the heat transfer and friction *** parameters in the form of Reynolds number(Re)of 4000-16000,relative roughness pitch(P/e)of 8-18 and relative roughness height(e/Dh)of 0.0366-0.055 is considered for the *** CFD code ANSYS FLUENT is used to solve the governing equations of turbulent *** RNG k-εturbulence model is used to solve the transport equations with enhanced wall treatment,keeping the Y+*** maximum enhancement ratio of the Nusselt number and friction factor obtained is 1.91 and 3.61 *** detailed investigation on average heat transfer,friction factor and flow structures have been discussed.