Title

Three-Dimensional Thermal Boundary Layer Corrections For Circular Heat Flux Gauges Mounted In A Flat Plate With A Surface Temperature Discontinuity

Keywords

Convective heat flux gauges; surface temperature discontinuity; Three-dimensional thermal boundary layers

Abstract

Three-dimensional Navier-Stokes computational fluid dynamics (CFD) analysis has been performed in an effort to determine thermal boundary layer correction factors for circular convective heat flux gauges (such as Schmidt-Boelter and plug type) mounted flush in a flat plate subjected to a stepwise surface temperature discontinuity. Turbulent flow solutions with temperature-dependent properties are obtained for a freestream Reynolds number of 1E6, and freestream Mach numbers of 2 and 4. The effect of gauge diameter and the plate surface temperature have been investigated. The 3D CFD results for the heat flux correction factors are compared to quasi-2D results deduced from constant property integral solutions and also 2D CFD analysis with both constant and variable properties. The role of three-dimensionality and of property variations on the heat flux correction factors has been demonstrated. © 2006 Elsevier Ltd. All rights reserved.

Publication Date

2-1-2007

Publication Title

International Journal of Heat and Mass Transfer

Volume

50

Issue

3-4

Number of Pages

713-722

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ijheatmasstransfer.2006.07.008

Socpus ID

33845316446 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33845316446

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