Heat transfer enhancement for turbulent flow through blockages with round and elongated holes in a rectangular channel Academic Article

abstract

• Experiments were conducted to determine the average heat transfer coefficients on three wall segments between blockages with holes in a wide rectangular channel. Eight different configurations of the holes in the blockagestwo diameters and four aspect ratios of the holeswere examined. The pressure drops across the blockages were also measured. The results showed that the elongated holes in the blockages in this study enhanced more heat transfer than the round holes, but they also caused larger pressure drops across the blockages.

authors

• Lau, Sai

published proceedings

• JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME

author list (cited authors)

• Ahn, H. S., Lee, S. W., & Lau, S. C.

citation count

• 16

complete list of authors

• Ahn, HS||Lee, SW||Lau, SC

publication date

• November 2007

publisher

• ASME International  Publisher

published in

• Journal of Heat Transfer: Transactions of the ASME  Journal

keywords

• Blockages With Holes
• Forced Convection
• Heat Transfer Enhancement
• Internal Cooling Of Turbine Airfoils

Digital Object Identifier (DOI)

• 10.1115/1.2764091

URI

• https://hdl.handle.net/1969.1/5860

start page

• 1611

end page

• 1615

volume

• 129

issue

• 11

URL

• http%3A%2F%2Fdx.doi.org%2F10.1115%2F1.2764091