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Article http://dx.doi.org/10.26855/ea.2021.12.001

Numerical Investigation of Adiabatic Film Cooling Effectiveness over Flat Plate with ESCR Shape Ramp Configuration

Grine Mustapha1,*, Ben Ali Kouchih Fatima2, Boualem Khadidja2, Azzi Abbès2

1ELM Department, Institut of Maintenance and Industrial Safety, Oran 2 University, Oran, Oran Province, Algeria.

2Laboratoire Aero Hydrodynamique Navale, (LAHN) USTO-MB, Oran, Oran Province, Algeria.

*Corresponding author: Grine Mustapha

Published: September 1,2021

Abstract

As film cooling is an important and critical process for gas turbine applications, designers are always looking to increase the adiabatic film cooling effectiveness. The one possible solution is to modify the approaching boundary layer flow and its interaction with the film cooling jets. In this study, two geometrical configurations are considered for purpose comparison, which are the base line case, and the case with an upstream ESCR with rounded edge. The ensemble-averaged Navier Stokes equations closed by the k-ε RNG turbulence model and standard wall function are used in frame of the finite volume method, computational Fluid Dynamic (CFD) code represented by the commercial programmers ANSYS CFX 14.0. The work consists of a numerical computation study of a film cooling on a flat plate. The goal is to verify the effectiveness of the present code by applying the same boundary conditions on the same geometry. Furthermore, another dimension of the physical domain was displayed by adding the concept of upstream ESCR fence. Three blowing ratios are considered (0.50, 0.85, and 1.00) and length-to-diameter ratios 1.75. Results are shown in form of centerline adiabatic film cooling effectiveness. The most important element in this study is the film cooling effectiveness. This variable will be the subject of most of the results in this work.

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How to cite this paper

Numerical Investigation of Adiabatic Film Cooling Effectiveness over Flat Plate with ESCR Shape Ramp Configuration

How to cite this paper: Grine Mustapha, Ben Ali Kouchih Fatima, Boualem Khadidja, Azzi Abbès. (2021). Numerical Investigation of Adiabatic Film Cooling Effectiveness over Flat Plate with ESCR Shape Ramp Configuration. Engineering Advances1(2), 31-38.

DOI: http://dx.doi.org/10.26855/ea.2021.12.001