EXPERIMENTAL STUDY ON THE PRESENCE OF OPEN CAVITY EFFECTS ON INTERNAL FLOW AND CONVECTIONHEAT TRANSFER CHARACTERISTICS

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Published: 2010-09-01
DOI: https://doi.org/10.31026/j.eng.2010.03.17

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IKHLASE M. FAYED
MOAYED R. HASAN
ANEAS A. AL-FAKHRI

Abstract

An experimental study is conducted to investigate the effect of open cavity on the pattern of fully developed internal flow and convection heat transfer. In this experimental work the velocity profile, temperature distribution, heat transfer coefficient and Nusselt number were determined at various Reynolds numbers (1.9*104≤ Re ≤ 2.7*104
) for smooth surface as well as for flow over open cavity (with and without excitation). The results showed that the presence of the cavity led to change the downstream velocity profile and the dissimilarity of downstream skin friction coefficient between the upper and lower surfaces around (64 %) at distance to the length cavity (x/L= + 20.5). As a result the heat transfer coefficient and Nu increased downstream of the cavity especially at (x/L= + 20.5) around (30 %). The effect of cavity excitation with different  sound levels (100,107.5 and 115) dB and frequencies (25,50 and 100) Hz was small compared with the cavity itself. 

Article Details

Issue

Vol. 16 No. 03 (2010): Journal of Engineering

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Articles
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This work is licensed under a Creative Commons Attribution 4.0 International License.

 
 

How to Cite

“EXPERIMENTAL STUDY ON THE PRESENCE OF OPEN CAVITY EFFECTS ON INTERNAL FLOW AND CONVECTIONHEAT TRANSFER CHARACTERISTICS” (2010) Journal of Engineering, 16(03), pp. 5536–5547. doi:10.31026/j.eng.2010.03.17.

References

Hamed A., Das K., and Basu D. (2004), Numerical simulations of fluidic control for transonic cavity flows. 42nd AIAA Aerospace Sciences Meeting & Exhibit. pp. 1-8.

June R.R., and Baker M. J. (1963), The effect of sound on free convection heat transfer from a vertical plate. Journal of heat transfer. pp.279.

Klai-Fook Cody, Hambric S. and Pollack M. (2005). Challenges of investigating fluid elastic lock- in of a shallow cavity and a cantilevered beam at low Mach numbers. LM 05K127. pp. 1-9.

Louis Cattafesta, David Williams, Clancy Rowley and Farruk Alvi. (2003). Review of active control of flow- induced cavity resonance. 33rd AIAA Fluid dynamics conference.

pp.1-20.

Lwaa N. (1992). Experimental study to flow and heat transfer in the rectangular duct centered with diffuser section at different angles. M.Sc. Thesis, University of Technology, Mech. Dept.

Pascal Hemon, Xavier Amandolese, Francoise Santi and Jan Wojciechowski (2002). Study the acoustic oscillation of flow over cavities. Part 2. Sound Reduction. ASME International Engineering Congress & Exposition. pp. 1-7.

Patel V.C. (1965). Calibration of Preston tube and limitation on its use pressure gradients.J. Fluid Mec., vol. 23. pp. 185-208

Samimy M., Debiasi M. and Caraballo E. (2003). Development of closed-loop control for cavity flows. 33rd AIAA Fluid Dynamics Conference and Exhibit. pp. 1-17.

Xavier Amandolese, Pascal Hemon and Clotide Regardin. (2002). Study the acoustic oscillation of flow over cavities. Part 1.Internal Fl;ows. ASME International Engineering Congress & Exposition. pp. 1-9