Buoyant flow and heat transfer in a conducting baffle

S. K S Boetcher, F. A. Kulacki

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

1 Scopus citations

Abstract

A numerical simulation of transient two-dimensional negatively buoyant flow into a straight baffle situated below an isothermal circular cylinder is performed. Both an adiabatic and a highly conducting baffle are considered over a range of Rayleigh numbers, 106 < RaD < 10 7. During the quasi-steady-state period, the surrounding fluid is effectively considered infinite in extent and at constant temperature. It is found that in general, the conducting baffle is at a disadvantage in maintaining a short attachment length which is needed to optimally slow the flow to prevent mixing. Qualitative flow fields are shown and heat transfer rates to the cylinder are calculated at the quasi-steady state.

Original languageEnglish (US)
Title of host publication2008 Proceedings of ASME International Mechanical Engineering Congress and Exposition, IMECE 2008
Pages1461-1470
Number of pages10
EditionPART B
DOIs
StatePublished - Sep 21 2009
Event2008 ASME International Mechanical Engineering Congress and Exposition, IMECE 2008 - Boston, MA, United States
Duration: Oct 31 2008Nov 6 2008

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
NumberPART B
Volume10

Other

Other2008 ASME International Mechanical Engineering Congress and Exposition, IMECE 2008
CountryUnited States
CityBoston, MA
Period10/31/0811/6/08

Keywords

  • Conducting baffle
  • Negatively bouyant plume

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    Boetcher, S. K. S., & Kulacki, F. A. (2009). Buoyant flow and heat transfer in a conducting baffle. In 2008 Proceedings of ASME International Mechanical Engineering Congress and Exposition, IMECE 2008 (PART B ed., pp. 1461-1470). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 10, No. PART B). https://doi.org/10.1115/IMECE2008-69081