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Numerical simulations of unsteady fluid flow and heat transfer in a transonic turbine stage

Mumic, Fadil LU and Sundén, Bengt LU (2006) 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
Abstract
In this work, a numerical study has been performed to simulate the unsteady fluid flow and heat transfer in a transonic high-pressure turbine stage. The main objective of this study is to understand the unsteady flow field and heat transfer in a single transonic turbine stage using an unsteady structured Navier-Stokes solver. For the time accurate computation, a fully implicit time discretization, dual-time stepping, is performed. The results of the CFD simulations are compared with experimental heat transfer and aerodynamic results available for the so-called MT1 turbine stage. The predicted heat transfer and static pressure distributions show reasonable agreement with experimental data. In particular, the results show significant... (More)
In this work, a numerical study has been performed to simulate the unsteady fluid flow and heat transfer in a transonic high-pressure turbine stage. The main objective of this study is to understand the unsteady flow field and heat transfer in a single transonic turbine stage using an unsteady structured Navier-Stokes solver. For the time accurate computation, a fully implicit time discretization, dual-time stepping, is performed. The results of the CFD simulations are compared with experimental heat transfer and aerodynamic results available for the so-called MT1 turbine stage. The predicted heat transfer and static pressure distributions show reasonable agreement with experimental data. In particular, the results show significant fluctuations in heat transfer and pressure at mid-span on the rotor blade, and that the rotor has a limited influence on the heat transfer to the NGV at mid span. Copyright (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Static pressure distributions, Transonic turbine, Dual time stepping
host publication
American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
pages
8 pages
publisher
American Society Of Mechanical Engineers (ASME)
conference name
2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
conference location
Chicago, IL, United States
conference dates
2006-11-05 - 2006-11-10
external identifiers
  • scopus:84920633435
ISSN
0272-5673
ISBN
0791837904
language
English
LU publication?
yes
id
3f21c471-db26-4832-a62c-804b7e3ab39c (old id 616872)
date added to LUP
2016-04-01 16:53:07
date last changed
2021-02-17 04:20:37
@inproceedings{3f21c471-db26-4832-a62c-804b7e3ab39c,
  abstract     = {In this work, a numerical study has been performed to simulate the unsteady fluid flow and heat transfer in a transonic high-pressure turbine stage. The main objective of this study is to understand the unsteady flow field and heat transfer in a single transonic turbine stage using an unsteady structured Navier-Stokes solver. For the time accurate computation, a fully implicit time discretization, dual-time stepping, is performed. The results of the CFD simulations are compared with experimental heat transfer and aerodynamic results available for the so-called MT1 turbine stage. The predicted heat transfer and static pressure distributions show reasonable agreement with experimental data. In particular, the results show significant fluctuations in heat transfer and pressure at mid-span on the rotor blade, and that the rotor has a limited influence on the heat transfer to the NGV at mid span. Copyright},
  author       = {Mumic, Fadil and Sundén, Bengt},
  booktitle    = {American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD},
  isbn         = {0791837904},
  issn         = {0272-5673},
  language     = {eng},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Numerical simulations of unsteady fluid flow and heat transfer in a transonic turbine stage},
  year         = {2006},
}