A numerical study of the effect of roughness on the turbine blade cascade performance
type: Item
instance of: scholarly article
title: A numerical study of the effect of roughness on the turbine blade cascade performance
zbMATH Open document ID: 1269.76087
DOI: 10.1504/PCFD.2008.021320
author: Harkiran Singh
author: Lajpat Rai
author: S. R. Kale
published in: Progress in Computational Fluid Dynamics
publication date: 2008-12-18T00:00:00Z
review text: Summary: The numerical simulation of a rectilinear blade cascade with surface roughness up to \(100 \mu \)m over different locations of the turbine blade has been performed. It is observed that the effect of roughness on the efficiency of the turbine blade is more on the suction surface than that on the pressure surface. In case of suction surface, mass-averaged profile losses are more when roughness is provided on the trailing edge than on middle chord and losses are least when the roughness is provided on the leading edge, however pattern of losses is opposite with roughness on pressure surface.
Mathematics Subject Classification ID: 76M25
zbMATH DE Number: 5383239
zbMATH Keywords: steam turbines
zbMATH Keywords: turbine blades
zbMATH Keywords: blade roughness
zbMATH Keywords: cascade performance
zbMATH Keywords: numerical simulation
zbMATH Keywords: surface roughness
zbMATH Keywords: suction surface
zbMATH Keywords: pressure surface
zbMATH Keywords: CFD
zbMATH Keywords: computational fluid dynamics
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 5383239