Simulation of forced convection in a channel containing three obstacles over backward and forward facing steps by LBM
type: Item
instance of: scholarly article
title: Simulation of forced convection in a channel containing three obstacles over backward and forward facing steps by LBM
zbMATH Open document ID: 1419.80025
author: Shujit Kumar Bala
author: Litan Kumar Saha
author: M. Anwar Hossain
published in: International Journal of Applied and Computational Mathematics
publication date: 2019-04-18T00:00:00Z
review text: Forced convection in a channel with obstacles is interesting due to applications of such flows in different branches of engineering where heat exchange must be taken into account. In this paper, the authors consider a 2D-channel with three rectangular obstacles of different height. Their surfaces are supposed to be more cold than the fluid at the channel inlet, so the heat exchange occurs. \par To simulate the process numerically, the authors rewrite the equations of laminar fluid motion in terms of the stream function and vorticity and then implement the lattice Boltzmann method. \par The results of simulation are presented at quite large number of plots that illustrate, for example, the dependence of the Nusselt number on the Reynolds number. However, the main conclusion is short enough and quite obvious: an increase in the Reynolds number causes the vortices near obstacles to be more intensive and this, in turn, results in more intensive heat transfer.
reviewed by: Aleksey Syromyasov
Mathematics Subject Classification ID: 80M25
Mathematics Subject Classification ID: 76R05
Mathematics Subject Classification ID: 65M75
Mathematics Subject Classification ID: 65M06
Mathematics Subject Classification ID: 80M20
zbMATH DE Number: 7046084
zbMATH Keywords: forced convection
zbMATH Keywords: channel flow
zbMATH Keywords: heat transfer
zbMATH Keywords: lattice Boltzmann method
zbMATH Keywords: Nusselt number
zbMATH Keywords: BFFSs
zbMATH Keywords: stream function-vorticity formulation
MaRDI profile type: Publication
full work available at URL: s40819-019-0622-2
OpenAlex ID: W2920214568
cites work: COMPUTATIONAL SIMULATION OF FLUID FLOW OVER A TRIANGULAR STEP USING IMMERSED BOUNDARY METHOD
cites work: Convective flow and heat transfer in a channel containing multiple heated obstacles
cites work: Steady flow through a channel with a symmetrical constriction in the form of a step
cites work: Nonlinear multimode response of clamped rectangular plates to acoustic loading
cites work: A streamline upwinding streamfunction-vorticity finite element analysis of Navier-Stokes equations
cites work: A discrete artificial boundary condition for steady incompressible viscous flows in a no-slip channel using a fast iterative method
cites work: Laminar separation on a forward facing step
cites work: Control of flow separation over a forward-facing step by model reduction.
cites work: Numerical prediction for laminar forced convection in parallel-plate channels with transverse fin arrays
cites work: Convective cooling of a heated obstacle in a channel
cites work: Simulation of forced convection in a channel with extended surfaces by the lattice Boltzmann method
cites work: Lattice Boltzmann method simulation of backward-facing step on convective heat transfer with field synergy principle
Wikidata QID: Q128278913
DOI: 10.1007/S40819-019-0622-2
description: scientific article; zbMATH DE number 7046084