Numerical analysis of water forced convection in channels with differently shaped transverse ribs
type: Item
instance of: scholarly article
title: Numerical analysis of water forced convection in channels with differently shaped transverse ribs
zbMATH Open document ID: 1217.76053
DOI: 10.1155/2011/323485
author: Oronzio Manca
author: S. Nardini
author: Daniele Ricci
published in: Journal of Applied Mathematics
publication date: 2011-07-22T00:00:00Z
review text: Summary: Heat transfer enhancement technology has the aim of developing more efficient systems as demanded in many applications. An available passive method is represented by the employ of rough surfaces. Transversal turbulators enhance the heat transfer rate by reducing the thermal resistance near surfaces, because of the improved local turbulence; on the other hand, higher losses are expected. In this paper, a numerical investigation is carried out on turbulent water forced convection in a ribbed channel. Its external walls are heated by a constant heat flux. Several arrangements of ribs in terms of height, width, and shape are analyzed. The aim is to find the optimal configuration in terms of high heat transfer coefficients and low losses. The maximum average Nusselt numbers are evaluated for dimensionless pitches of \(6\), \(8\), and \(10\) according to the shape while the maximum friction factors are in the range of pitches from \(8\) to \(10\).
Mathematics Subject Classification ID: 76M25
Mathematics Subject Classification ID: 76R05
Mathematics Subject Classification ID: 80A20
zbMATH DE Number: 5930813
Wikidata QID: Q58690314
describes a project that uses: FLUENT
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2011/323485
OpenAlex ID: W1966084561
cites work: Analysis of periodically fully developed turbulent flow and heat transfer by k-\(\epsilon\) equation model in artificially roughened annulus
description: scientific article; zbMATH DE number 5930813