Transient and steady state solutions for laminar flow over a finite thickness fin in a parallel plate channel

H. M. Joshi, A. Khalilollahi

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Strip-fins, either inline or staggered, are commonly used in compact heat exchangers. Modeling work for such geometries has usually concentrated on zero-thickness fins. But thickness effects are important because they affect the flow in two ways: First, finite thickness fins introduce a form drag which increases the pressure drop in the exchanger. Second, recirculating zones are produced behind the fins, and this affects the heat transfer from the downstream fins. The present work models a single short fin at the entrance of a parallel plate channel, using two numerical methods. The first method, entitled ″Simple Arbitrary Lagrangian Eulerian″ (SALE) technique, is capable of handling time-dependent full conservation equations governing the velocity and energy fields. The second method is a simple parabolic scheme that recently has been available for the solution of steady laminar separated flows.

Original languageEnglish (US)
Pages (from-to)439-444
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume96
StatePublished - Dec 1 1988
EventASME Proceedings of the 1988 National Heat Transfer Conference - Houston, TX, USA
Duration: Jul 24 1988Jul 27 1988

Fingerprint

Fins (heat exchange)
Laminar flow
Pressure drop
Heat exchangers
Drag
Conservation
Numerical methods
Heat transfer
Geometry

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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title = "Transient and steady state solutions for laminar flow over a finite thickness fin in a parallel plate channel",
abstract = "Strip-fins, either inline or staggered, are commonly used in compact heat exchangers. Modeling work for such geometries has usually concentrated on zero-thickness fins. But thickness effects are important because they affect the flow in two ways: First, finite thickness fins introduce a form drag which increases the pressure drop in the exchanger. Second, recirculating zones are produced behind the fins, and this affects the heat transfer from the downstream fins. The present work models a single short fin at the entrance of a parallel plate channel, using two numerical methods. The first method, entitled ″Simple Arbitrary Lagrangian Eulerian″ (SALE) technique, is capable of handling time-dependent full conservation equations governing the velocity and energy fields. The second method is a simple parabolic scheme that recently has been available for the solution of steady laminar separated flows.",
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Transient and steady state solutions for laminar flow over a finite thickness fin in a parallel plate channel. / Joshi, H. M.; Khalilollahi, A.

In: American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, Vol. 96, 01.12.1988, p. 439-444.

Research output: Contribution to journalConference article

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AU - Khalilollahi, A.

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