0

Full Content is available to subscribers

Subscribe/Learn More  >

Evaluation of CFD Predictions Using Different Turbulence Models on a Film Cooled Guide Vane Under Experimental Conditions

[+] Author Affiliations
Qingbo Zhang, Huazhao Xu, Jianhua Wang, Ge Li

University of Science and Technology of China, Hefei, Anhui, China

Lei Wang, Xiangyu Wu, Shiyan Ma

Aero-engine Institute of Aviation Industry Corporation of China, Shenyang, Liaoning, China

Paper No. GT2015-42563, pp. V05AT10A010; 12 pages
doi:10.1115/GT2015-42563
From:
  • ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
  • Volume 5A: Heat Transfer
  • Montreal, Quebec, Canada, June 15–19, 2015
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5671-0
  • Copyright © 2015 by ASME

abstract

This paper presents a numerical investigation of the conjugate heat transfer (CHT) to calculate the steady state aerodynamic and thermal characteristics of a film cooled gas turbine vane. The commercial code ANSYS FLUENT 15.0 is applied as the numerical tool. The turbine configuration selected from NASA Energy Efficient Engine program consists of 46 vanes with two impingement baffles in forward and aft cavities. The periodic boundary condition is used to reduce the calculation cost while maintaining a reasonable accuracy of the numerical results.

Using the commercial software ANSYS ICEM 15.0, steady simulations are based on a structured grid method with the finite volume technique. In the numerical simulations, two two-equation turbulence models, i.e. the Realizable k-epsilon (k-ε) and Shear Stress Transport k-omega (SST k-ω), and a four-equation turbulence model, i.e. the V2-F model, are used. To estimate the numerical strategy, the calculated results of the Mach number distributions obtained by the three turbulence models are compared with the experimental data of Timko (NASA CR-168289). Then the detailed flow and heat transfer characteristics, including the cooling effectiveness, heat transfer coefficient distributions on the vane’s surfaces, static pressure distributions along three span-wise lines and total pressure distributions in the cascade passage are predicted. Through the comparison of the numerical results obtained under adiabatic and CHT conditions, the influences of heat conduction on vane cooling effect are discussed.

Copyright © 2015 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In