Staff Members - Benha University
FILM COOLING PERFORMANCE USING TRANSIENT LIQUID CRYSTALS MEASUREMENTS
International Journal of Mechanical Engineering (IJME) • 2015
Publication Information
Authors
EHAB RADWAN1, M. F. ABDRABBO2 & M. G. HIGAZY3
Keywords
KEYWORDS: Adiabatic, Film Cooling, Heat Transfer, Transient, Liquid Crystal
Journal
International Journal of Mechanical Engineering (IJME)
Publisher
IASET
Volume
Vol. 4,
Issue
Issue 5,
Pages
37-46
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
ABSTRACT
This paper is an experimental investigation of the film cooling performance over a flat plate using transient liquid
crystal measurements.Cylindrical hole with straight angle injection was used.Experiments were conducted at different
blowing ratio (M=0.5 to 1.5) and different cooling channel Reynolds number (ReDh,c=10000, to ReDh,c=40000). All
Experiments were conducted at constant hot gas Reynolds number and constant pressure ratio and.Film cooling
Performance h (heat transfer coefficient) and η (adiabatic film cooling effectiveness are determined using the transient
liquid crystal method combined with a numerical regression method to solve for the two unknowns). The results are
discussed and compared to previously published literature.
This paper is an experimental investigation of the film cooling performance over a flat plate using transient liquid
crystal measurements.Cylindrical hole with straight angle injection was used.Experiments were conducted at different
blowing ratio (M=0.5 to 1.5) and different cooling channel Reynolds number (ReDh,c=10000, to ReDh,c=40000). All
Experiments were conducted at constant hot gas Reynolds number and constant pressure ratio and.Film cooling
Performance h (heat transfer coefficient) and η (adiabatic film cooling effectiveness are determined using the transient
liquid crystal method combined with a numerical regression method to solve for the two unknowns). The results are
discussed and compared to previously published literature.