Effect of wavelength and amplitude on heat transfer over a wavy wall

H. Shmueli, G. Ziskind, R. Letan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The present study deals with the effects of wall geometry on the fluid flow and heat transfer in a square duct with a wavy wall heated with constant heat flux. The waviness is characterized by wave amplitude and wavelength. The investigation is done numerically using the Large Eddy Simulation (LES) for various amplitudes and wavelengths. The results are compared with those for a completely flat duct in terms of the friction factor and Nusselt number. It is shown that there is a significant enhancement in heat transfer as compared to a flat duct, whereas the pressure drop increases to a lesser extent. A comparison of the results for the same wave amplitude to wavelength ratio is also performed in order to understand the physical role and the effect of the amplitude and the wavelength on the flow and heat transfer.

Original languageAmerican English
Title of host publicationAIAA AVIATION 2014 -11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference
DOIs
StatePublished - 1 Jan 2014
EventAIAA AVIATION 2014 -11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference 2014 - Atlanta, GA, United States
Duration: 16 Jun 201420 Jun 2014

Publication series

NameAIAA AVIATION 2014 -11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference

Conference

ConferenceAIAA AVIATION 2014 -11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference 2014
Country/TerritoryUnited States
CityAtlanta, GA
Period16/06/1420/06/14

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Effect of wavelength and amplitude on heat transfer over a wavy wall'. Together they form a unique fingerprint.

Cite this