Open Access

ARTICLE

CORRELATION DEVELOPMENT FOR JET IMPINGEMENT HEAT TRANSFER AND FORCE ON A MOVING CURVED SURFACE

Ali Chitsazan^a, Georg Klepp^a, Birgit Glasmacher^b

a Institute for Energy Research, Ostwestfalen-Lippe University of Applied Sciences and Arts, Lemgo 32657, Germany
b Institute for Multiphase Processes, Leibniz University Hannover, Hannover 30167, Germany

Frontiers in Heat and Mass Transfer 2022, 18, 1-9. https://doi.org/10.5098/hmt.18.16

Abstract

The effect of jet Reynolds number, jet exit angle, the nozzle to surface distance, jet to jet spacing on the heat transfer, and pressure force performance from multiple impinging round jets on a moving curved surface have been numerically evaluated. Two correlations are developed and validated for the average Nu number and the pressure force coefficient and the agreement between the CFD and correlations was reasonable. The surface motion effect becomes more pronounced on the Nu number distribution for low jet Re number, high jet to jet spacing, large jet to surface distance, and angled jets. The pressure force coefficient is highly dependent on the jet to surface distance and jet angle but relatively insensitive to jet Re number and jet to jet spacing.

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Keywords

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