Investigating the Impact of Lateral Air Jet Impingement on Heat Transfer Enhancement in Semi-Circular Grooved Surfaces: A Comprehensive Review and Meta-Analysis
Abstract
Heat
applications.
Future
research
directions emphasize the need for multi-objective
transfer
enhancement
through
jet
impingement on modified surfaces has garnered
significant attention in industrial applications
ranging from gas turbine cooling to electronic
thermal management. This comprehensive review
examines the current state of research on
enhanced heat transfer mechanisms achieved
through lateral air jet impingement on semi
circular grooved surfaces. The study presents a
meta-analysis of experimental and computational
investigations conducted over the past two decades,
focusing on the synergistic effects of surface
modification and jet impingement parameters. Key
findings indicate that semi-circular groove
geometries can enhance heat transfer coefficients
by 15-45% compared to smooth surfaces, with
optimal performance achieved at specific groove
depth-to-width ratios and jet Reynolds numbers.
The review identifies critical parameters including
jet-to-surface distance, groove pitch, jet angle, and
surface roughness that significantly influence heat
transfer
performance. Computational fluid
dynamics studies reveal complex flow phenomena
including boundary layer reattachment, secondary
vortex formation, and enhanced mixing within
groove
cavities.
Experimental
validations
demonstrate good agreement with numerical
predictions, establishing reliable correlations for optimization considering both heat transfer
enhancement and pressure drop penalties,
investigation of novel groove configurations, and
development of predictive models for practical
implementation in industrial systems.
Keywords: Heat transfer enhancement, Jet
impingement, Semi-circular grooves, Surface
modification, Thermal management, Convective
cooling, Flow visualization
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