Single-phase liquid jet impingement heat transfer

Journal Article · Sun Dec 31 04:00:00 EST 1995 · Advances in Heat Transfer

DOI:https://doi.org/10.1016/S0065-2717(08)70296-X· OSTI ID:241128

Webb, B W ^[1]; Ma, C F ^[2]

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1. Brigham Young Univ., Provo, UT (United States)
2. Beijing Polytechnic Univ. (China)

Impinging liquid jets have been demonstrated to be an effective means of providing high heat/mass transfer rates in industrial transport processes. When a liquid jet strikes a surface, thin hydrodynamic and thermal boundary layers from in the region directly beneath due to the jet deceleration and the resulting increase in pressure. The flow is then forced to accelerate in a direction parallel to the target surface in what is termed the wall jet or parallel flow zone. The thickness of the hydrodynamic and thermal boundary layers in the stagnation region may be of the order of tens of micrometers. Consequently, very high heat/mass transfer coefficients exist in the stagnation zone directly under the jet. Transport coefficients characteristic of parallel flow prevail in the wall jet region. The high heat transfer coefficients make liquid jet impingement an attractive cooling option where high heat fluxes are the norm. Some industrial applications include the thermal treatment of metals, cooling of internal combustion engines, and more recently, thermal control of high-heat-dissipation electronic devices. Both circular and planar liquid jets have attracted research attention. 180 refs., 35 figs., 11 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 241128
• Journal Information: Advances in Heat Transfer, Journal Name: Advances in Heat Transfer Vol. 26; ISSN 0065-2717; ISSN AHTRAR
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
66 PHYSICS
BOUNDARY LAYERS
FLUID FLOW
HEAT TRANSFER
JETS
LIQUIDS
MASS TRANSFER