Open Access
ARTICLE
NUMERICAL STUDY OF JET IMPINGEMENT FORCE AND HEAT TRANSFER ON A MOVING CURVED SURFACE
Ali Chitsazana
, Georg Kleppa, Birgit Glasmacherb
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, 1-7. https://doi.org/10.5098/hmt.18.15
Abstract
The effect of surface curvature, number of jets, number of jet rows, jet arrangement, crossflow, and surface motion on the heat transfer and pressure
force performance from multiple impinging round jets on the moving flat and curved surface have been numerically evaluated. The more number of
jets (more than three jets) has no significant effect on the average heat transfer rate. The more number of jet rows increases the strength of wall jets
interference and crossflow effects and degrade the average heat transfer rates. There is a minor difference between inline and staggered arrangements
on both moving flat and curved surfaces. The surface motion has a stronger effect on the impinging jets in the intermediate crossflow scheme than in
the minimum crossflow scheme. The total average Nu on both moving flat and curved surfaces reduces with an increase in the velocity ratio and surface
curvature. The pressure force is relatively insensitive to the surface motion on both moving flat and curved surfaces.
Keywords
Cite This Article
Chitsazan, A., Glasmacher, B. (2022). NUMERICAL STUDY OF JET IMPINGEMENT FORCE AND HEAT TRANSFER ON A MOVING CURVED SURFACE.
Frontiers in Heat and Mass Transfer, 18(1), 1–7. https://doi.org/10.5098/hmt.18.15