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TECHNICAL NOTES

On the Accuracy of Beam-Averaged Interferometric Heat Transfer Measurements

[+] Author and Article Information
D. Naylor

Department of Mechanical, Aerospace and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada, M5B 2K3

J. Heat Transfer 124(5), 978-982 (Sep 11, 2002) (5 pages) doi:10.1115/1.1482400 History: Received August 14, 2001; Revised March 20, 2002; Online September 11, 2002
Copyright © 2002 by ASME
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References

Figures

Grahic Jump Location
Thermally developing flow over a surface with a temperature variation in the test/object beam direction
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(a) Temperature contours of a forced convection boundary layer on a plate with a linear surface temperature variation (n=1) for ReL=104, Pr=0.7, (b) Simulated beam-averaged infinite fringe interferogram (TL−T=20 K,P=100 kPa,G=2.256×10−4m3/kg,λ0=632.8 nm,L=0.4 m,R=287 J/kgK,T=300 K).
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Effect of surface temperature difference on the percentage error in the surface temperature gradient, calculated using the actual mean temperatures and the effective fringe temperatures (PGL/Rλ0=4.97×104 K,T=300 K)
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Effect of the surface temperature difference on the percentage error in the surface temperature gradient, calculated using the fringe gradient for (a) forced convection and (b) free convection

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