Work

Endwall film-cooling in a cascade with filleted vane, upstream discrete slots, and holes

Year: 2024

Type: article

Abstract: In vane cascades, large filleted vanes influence aerodynamics, while upstream endwall film-cooling arrangement impacts aero-thermal performance. This study explores experimental investigations on endwall flows and film-cooling effectiveness in a filleted vane cascade using discrete slots and holes. Two fillet profiles are examined covering the leading-edge area to either the throat or 62% of the axial chord. Film-cooling employs two slots and two rows of holes in the leading-edge region with inlet blowing ratios ranging from 1.0 to 2.8. Results show variations in total pressure loss and Nusselt number between filleted and un-filleted vanes, highlighting optimal film-cooling effectiveness with the smaller fillet profiles.

Source: Experimental Heat Transfer

DOI: 10.1080/08916152.2024.2424820

Authors: Adeola S. Shote, Barbara B. Huyssen, Gazi I. Mahmood

Institutions: University of Pretoria, Olabisi Onabanjo University, Prince Mohammad bin Fahd University

Language: English

Topic: Turbomachinery Performance and Optimization

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

OpenAlex ID: W4404240555

FWCI: 0.356

Cites: 41

Cited by: 2

Related to: 10