Heat Transfer Mechanisms by Jet Impingement on a Convex Surface : A Review

Title:Heat Transfer Mechanisms by Jet Impingement on a Convex Surface : A Review

Volume: 1 Issue: 5

Author(s): Tongbeum Kim*, Dylan Barratt, Michael Atkins, Sjouke Schekman and Tian J. Lu

Affiliation:

• State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016,China

Keywords: Convex surface, fluidic mechanisms, jet impingement, potential core, transition, turbulent strength.

Abstract: Jet impingement in engineering applications is used because of the capacity to transport high levels of heat flux from a surface of interest for cooling purposes. Thus far, based on a vast database of experiments and numerical simulations, several correlations have been established for local and average heat transfer on target surfaces as functions of relevant fluid properties and geometric parameters. In addition to these correlations, significant efforts have been made to gain fundamental understanding of jet impingement in varying configurations. However, the physics governing heat transfer by jet impingement is conjectured and even unclear. Thus, this article collates and discusses recent advances in fluidic mechanisms underlying the heat transfer by submerged jet impingement on a convex surface. The fluid properties developed on a convex surface due to jet impingement with varied characteristics, including jet-to-target surface spacing, interchange their primary roles in heat transfer from/to a convex surface. Particularly, conjectures associated with relevant fluidic mechanisms that have been widely accepted, are confirmed, clarified, and corrected.

Cite this article as:

Kim Tongbeum*, Barratt Dylan, Atkins Michael, Schekman Sjouke and Lu J. Tian , Heat Transfer Mechanisms by Jet Impingement on a Convex Surface : A Review, Current Chinese Science 2021; 1 (5) . https://dx.doi.org/10.2174/2772432816666210811151045