Interstage Disk-Cavity/Brush Seal Numerical Flow Visualization Study PUBLIC ACCESS

[+] Author Affiliations
V. V. Kudriavtsev, M. J. Braun

The University of Akron, Akron, OH

Paper No. 95-GT-378, pp. V001T01A094; 13 pages
  • ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Houston, Texas, USA, June 5–8, 1995
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7878-1
  • Copyright © 1995 by ASME


This paper presents work-in-progress results and model developments that are directed towards the computational fluid dynamics simulation of the secondary flow system in a gas turbine engine. Numerical flow visualization results of the 2-D axisymmetric rotational fluid flow (Re=105) in a generic cross section of an interstage turbine cavity are displayed. The core flow is driven by an imposed pressure drop along the vane row of the main flow path. Three interconnected disk cavities separated by a brush seal are located along the secondary flow path. A new computational algorithm was developed in order to predict the flow patterns and leakages for different seal and cavity configurations. The code is based on the numerical solution of the transient laminar Navier-Stokes equations, written in primitive variables and approximated on a nonuniform rectangular collocated grid. The program uses a mass and momentum conservative formulation as well as a set of boundary conditions for pressure and conservation of mass. The pressure solution uses the Poisson equation under a direct implementation procedure. A time dependent Alternating Direction Implicit (ADI) method is also used for the solution of all primitive variables. This integrated computational approach allows the simulation of the rotating disk cavity vortex flow periodic features, as well as their impact on leakage flow and sealing effectiveness. In the present study this approach is used to numerically investigate the flow through the brush. The main purpose of this study is to present an integrated brush seal/disk cavity flow model, to demonstrate the effectiveness of this approach, and to emphasize the necessity for further work in this direction.

Copyright © 1995 by ASME
This article is only available in the PDF format.



Interactive Graphics


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

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