Effect of mixed convection in the entrance region of finite circular rod arrays

Ramarathnam Narasimhan, S. Sengupta

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

Abstract

The effect of mixed convection in the entrance region of symmetric, finite circular rod bundles has been studied. The problem has been solved using the boundary fitted coordinate system. It was found that when buoyancy aids the flow the Nusselt number increases and when buoyancy opposes the flow the Nusselt number decreases. The percentage increase in Nusselt number due to buoyancy aiding the flow depends on whether the peripheral rods are closer to the central rod or to the channel wall. The largest increases occur when the peripheral rods are crowded near the central rod. The smallest increase occurs at a peripheral rod radius which has the largest forced convection Nusselt number.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
PublisherPubl by American Soc of Mechanical Engineers (ASME)
Pages67-75
Number of pages9
Volume102
StatePublished - 1988
EventThermal Hydraulics of Nuclear Steam Generators/Heat Exchangers - Chicago, IL, USA
Duration: Nov 27 1988Dec 2 1988

Other

OtherThermal Hydraulics of Nuclear Steam Generators/Heat Exchangers
CityChicago, IL, USA
Period11/27/8812/2/88

Fingerprint

Mixed convection
Nusselt number
Buoyancy
Forced convection

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Narasimhan, R., & Sengupta, S. (1988). Effect of mixed convection in the entrance region of finite circular rod arrays. In American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD (Vol. 102, pp. 67-75). Publ by American Soc of Mechanical Engineers (ASME).

Effect of mixed convection in the entrance region of finite circular rod arrays. / Narasimhan, Ramarathnam; Sengupta, S.

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 102 Publ by American Soc of Mechanical Engineers (ASME), 1988. p. 67-75.

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

Narasimhan, R & Sengupta, S 1988, Effect of mixed convection in the entrance region of finite circular rod arrays. in American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. vol. 102, Publ by American Soc of Mechanical Engineers (ASME), pp. 67-75, Thermal Hydraulics of Nuclear Steam Generators/Heat Exchangers, Chicago, IL, USA, 11/27/88.
Narasimhan R, Sengupta S. Effect of mixed convection in the entrance region of finite circular rod arrays. In American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 102. Publ by American Soc of Mechanical Engineers (ASME). 1988. p. 67-75
Narasimhan, Ramarathnam ; Sengupta, S. / Effect of mixed convection in the entrance region of finite circular rod arrays. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. Vol. 102 Publ by American Soc of Mechanical Engineers (ASME), 1988. pp. 67-75
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