Effect of approach-flow velocity and temperature nonuniformities on boundary-layer flow and heat transfer

E. M. Sparrow; R. M. Abdel-Wahed; S. V. Patankar

doi:10.1016/0017-9310(77)90068-0

Effect of approach-flow velocity and temperature nonuniformities on boundary-layer flow and heat transfer

E. M. Sparrow, R. M. Abdel-Wahed, S. V. Patankar

Mechanical Engineering

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2 Scopus citations

Abstract

The laminar flow and heat transfer on a flat plate subjected to nonuniform velocity and temperature profiles in the approaching free stream have been analyzed. The plate is situated in the laminar wake of an upstream plate. The extent of the approach-flow nonuniformities depends on the streamwise length of the wake relative to the length of the upstream plate. It was found that the effect of the nonuniformities is to reduce the wall shear and heat transfer on the downstream plate relative to their values for a uniform approach flow. Reductions of up to fifty percent were encountered. The extent of the reductions diminishes with increasing downstream distance, but non-negligible effects persist to a considerable length along the plate.

Original language	English (US)
Pages (from-to)	975-979
Number of pages	5
Journal	International Journal of Heat and Mass Transfer
Volume	20
Issue number	9
DOIs	https://doi.org/10.1016/0017-9310(77)90068-0
State	Published - Sep 1977

Bibliographical note

Funding Information:
Acknowledgement--This research was performed under the auspices of NSF grant ENG-751814l .

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abstract = "The laminar flow and heat transfer on a flat plate subjected to nonuniform velocity and temperature profiles in the approaching free stream have been analyzed. The plate is situated in the laminar wake of an upstream plate. The extent of the approach-flow nonuniformities depends on the streamwise length of the wake relative to the length of the upstream plate. It was found that the effect of the nonuniformities is to reduce the wall shear and heat transfer on the downstream plate relative to their values for a uniform approach flow. Reductions of up to fifty percent were encountered. The extent of the reductions diminishes with increasing downstream distance, but non-negligible effects persist to a considerable length along the plate.",

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AU - Sparrow, E. M.

AU - Abdel-Wahed, R. M.

AU - Patankar, S. V.

N1 - Funding Information: Acknowledgement--This research was performed under the auspices of NSF grant ENG-751814l .

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N2 - The laminar flow and heat transfer on a flat plate subjected to nonuniform velocity and temperature profiles in the approaching free stream have been analyzed. The plate is situated in the laminar wake of an upstream plate. The extent of the approach-flow nonuniformities depends on the streamwise length of the wake relative to the length of the upstream plate. It was found that the effect of the nonuniformities is to reduce the wall shear and heat transfer on the downstream plate relative to their values for a uniform approach flow. Reductions of up to fifty percent were encountered. The extent of the reductions diminishes with increasing downstream distance, but non-negligible effects persist to a considerable length along the plate.

AB - The laminar flow and heat transfer on a flat plate subjected to nonuniform velocity and temperature profiles in the approaching free stream have been analyzed. The plate is situated in the laminar wake of an upstream plate. The extent of the approach-flow nonuniformities depends on the streamwise length of the wake relative to the length of the upstream plate. It was found that the effect of the nonuniformities is to reduce the wall shear and heat transfer on the downstream plate relative to their values for a uniform approach flow. Reductions of up to fifty percent were encountered. The extent of the reductions diminishes with increasing downstream distance, but non-negligible effects persist to a considerable length along the plate.

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Effect of approach-flow velocity and temperature nonuniformities on boundary-layer flow and heat transfer

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