Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface

Abdlmonem Beitelmal, Michel A. Saad, Chandrakant D. Patel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An experimental study was performed to determine the effect of the inclination of an impinging two-dimensional air jet on the heat transfer from a uniformly heated flat plate. The impingement surface was a stainless steel plate of the same width as the jet nozzle. Local Nusselt numbers were determined as a function of three parameters: a) inclination angle of the air jet relative to the plate in the range of 90° to 40°, b) nozzle exit-to-plate spacing, z/D h, in the range of 4 to 12 and c) Reynolds number based on the hydraulic diameter of the slot nozzle in the range of 4049 to 12020. The results are presented in the form of graphs showing the variation of the local Nusselt number as a function of these parameters. The point of maximum heat transfer shifts towards the uphill side of the plate and the maximum Nusselt number decreases from its value at θ = 90° as the inclination angle decreases. The location of the maximum heat transfer region lies between 0 and 3D h away from the geometrical impinging point and appears to be insensitive to the Reynolds number in the range used in this study. For lower values of inclination angle, the local Nusselt number downstream from the maximum heat transfer point was insensitive to jet exit-to-plate spacing.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
EditorsR.A. Nelson, K.S. Ball, Z.M. Zhang
PublisherASME
Pages219-227
Number of pages9
Volume361-1
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition - Anaheim, CA, USA
Duration: 15 Nov 199820 Nov 1998

Other

OtherProceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition
CityAnaheim, CA, USA
Period15/11/9820/11/98

Fingerprint

Nusselt number
Heat transfer
Nozzles
Air
Reynolds number
Stainless Steel
Stainless steel
Hydraulics

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Beitelmal, A., Saad, M. A., & Patel, C. D. (1998). Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface. In R. A. Nelson, K. S. Ball, & Z. M. Zhang (Eds.), American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD (Vol. 361-1, pp. 219-227). ASME.

Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface. / Beitelmal, Abdlmonem; Saad, Michel A.; Patel, Chandrakant D.

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. ed. / R.A. Nelson; K.S. Ball; Z.M. Zhang. Vol. 361-1 ASME, 1998. p. 219-227.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Beitelmal, A, Saad, MA & Patel, CD 1998, Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface. in RA Nelson, KS Ball & ZM Zhang (eds), American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. vol. 361-1, ASME, pp. 219-227, Proceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition, Anaheim, CA, USA, 15/11/98.
Beitelmal A, Saad MA, Patel CD. Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface. In Nelson RA, Ball KS, Zhang ZM, editors, American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 361-1. ASME. 1998. p. 219-227
Beitelmal, Abdlmonem ; Saad, Michel A. ; Patel, Chandrakant D. / Heat transfer by a two-dimensional air jet impinging obliquely on a flat surface. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. editor / R.A. Nelson ; K.S. Ball ; Z.M. Zhang. Vol. 361-1 ASME, 1998. pp. 219-227
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