Advanced

Computational optimization of the internal cooling passages of a guide vane by a gradient-based algorithm

Xie, Gongnan LU ; Song, Yidan and Sundén, Bengt LU (2016) In Numerical Heat Transfer; Part A: Applications 69(12). p.1311-1331
Abstract

To keep the spatially averaged temperature and thermal stress of gas turbine blades and guide vanes within a permissible level, the present research concentrates on the optimization of the internal cooling passages in a guide vane. The main purpose is to search for the most optimal sizes, distributions, and shapes of internal cooling channels located in a guide vane. Cylindrical cooling passages and newly built passages shaped by Bezier curves are both considered in this investigation. In order to maintain the shapes of the cooling channels within the scale of the vane profile, a new technique is suggested to discretize the vane into the components, and then the outline of the passages is built based on the components. The optimization... (More)

To keep the spatially averaged temperature and thermal stress of gas turbine blades and guide vanes within a permissible level, the present research concentrates on the optimization of the internal cooling passages in a guide vane. The main purpose is to search for the most optimal sizes, distributions, and shapes of internal cooling channels located in a guide vane. Cylindrical cooling passages and newly built passages shaped by Bezier curves are both considered in this investigation. In order to maintain the shapes of the cooling channels within the scale of the vane profile, a new technique is suggested to discretize the vane into the components, and then the outline of the passages is built based on the components. The optimization of sizes, locations, and shapes of the cooling passages is solved as a single-objective problem using a gradient-based optimization algorithm, i.e., the globally convergent method of moving asymptotes (GCMMA). The optimized result displays a substantial reduction in both the spatially averaged temperature and thermal stress of the vane, and the related configurations are included and discussed in the investigation.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Numerical Heat Transfer; Part A: Applications
volume
69
issue
12
pages
21 pages
publisher
Taylor & Francis
external identifiers
  • scopus:84965062123
  • wos:000376685500001
ISSN
1040-7782
DOI
10.1080/10407782.2016.1139920
language
English
LU publication?
yes
id
091841fa-5b3b-479c-9469-aadeb50c60ea
date added to LUP
2016-09-29 11:11:23
date last changed
2017-08-08 13:40:41
@article{091841fa-5b3b-479c-9469-aadeb50c60ea,
  abstract     = {<p>To keep the spatially averaged temperature and thermal stress of gas turbine blades and guide vanes within a permissible level, the present research concentrates on the optimization of the internal cooling passages in a guide vane. The main purpose is to search for the most optimal sizes, distributions, and shapes of internal cooling channels located in a guide vane. Cylindrical cooling passages and newly built passages shaped by Bezier curves are both considered in this investigation. In order to maintain the shapes of the cooling channels within the scale of the vane profile, a new technique is suggested to discretize the vane into the components, and then the outline of the passages is built based on the components. The optimization of sizes, locations, and shapes of the cooling passages is solved as a single-objective problem using a gradient-based optimization algorithm, i.e., the globally convergent method of moving asymptotes (GCMMA). The optimized result displays a substantial reduction in both the spatially averaged temperature and thermal stress of the vane, and the related configurations are included and discussed in the investigation.</p>},
  author       = {Xie, Gongnan and Song, Yidan and Sundén, Bengt},
  issn         = {1040-7782},
  language     = {eng},
  month        = {04},
  number       = {12},
  pages        = {1311--1331},
  publisher    = {Taylor & Francis},
  series       = {Numerical Heat Transfer; Part A: Applications},
  title        = {Computational optimization of the internal cooling passages of a guide vane by a gradient-based algorithm},
  url          = {http://dx.doi.org/10.1080/10407782.2016.1139920},
  volume       = {69},
  year         = {2016},
}