Finite analytic solution of convective heat transfer for tube arrays in crossflow: Part 2 - Heat transfer analysis

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3250730· OSTI ID:6018952

Chen, Ching Jen; Wung, Tzong-Shyan ^[1]

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1. Univ. of Iowa, Iowa City (United States)

The convective heat transfer and pressure drop in flow past two types of tube array are solved numerically by the Finite Analytic Method in this investigation. The tube arrays considered are an in-line tube array and a staggared tube array with longitudinal and transverse pitch of two. The flow field solution is obtained and analyzed in Part 1 of the study. In the present Part 2, the temperature field, heat transfer characteristics, and pressure drop are investigated. The fluid and tubes are considered to be at the same temperature, except for the array tube, which is heated or cooled. The solution domain covers three pitches of tube arrays in order to simulate accurately the non-periodic behavior of the temperature field downsream of the heated tube. In general, the heat transfer in a staggered array of tubes is found to be higher than that in an in-lined array of tubes. However, the pressure drop in a staggered array arrangement is also higher. Local heat transfer varies between in-line and staggered tube arrays and depends on Reynolds number and Prandtl number. At high Reynolds number, the local heat transfer tends to peak at the upstream surface of the heated tube but away from the stagnation point and becomes minimum at the separation point. Heat transfer in recirculation zones are, in general, small.

• OSTI ID: 6018952
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Journal Issue: 3 Vol. 111:3; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CALCULATION METHODS
CONVECTION
CROSSFLOW SYSTEMS
ENERGY TRANSFER
FLUID FLOW
FORCED CONVECTION
HEAT EXCHANGERS
HEAT TRANSFER
MASS TRANSFER
NUMERICAL SOLUTION
TUBES