0
Research Papers

An Accelerated 3D Navier–Stokes Solver for Flows in Turbomachines

[+] Author and Article Information
Tobias Brandvik

Department of Engineering, Whittle Laboratory, University of Cambridge, 1 JJ Thomson Avenue, Cambridge CB3 0DY, UKtb302@cam.ac.uk

Graham Pullan1

Department of Engineering, Whittle Laboratory, University of Cambridge, 1 JJ Thomson Avenue, Cambridge CB3 0DY, UKgp10006@cam.ac.uk

1

Corresponding author.

J. Turbomach 133(2), 021025 (Oct 27, 2010) (9 pages) doi:10.1115/1.4001192 History: Received August 03, 2009; Revised December 21, 2009; Published October 27, 2010; Online October 27, 2010

A new three-dimensional Navier–Stokes solver for flows in turbomachines has been developed. The new solver is based on the latest version of the Denton codes but has been implemented to run on graphics processing units (GPUs) instead of the traditional central processing unit. The change in processor enables an order-of-magnitude reduction in run-time due to the higher performance of the GPU. The scaling results for a 16 node GPU cluster are also presented, showing almost linear scaling for typical turbomachinery cases. For validation purposes, a test case consisting of a three-stage turbine with complete hub and casing leakage paths is described. Good agreement is obtained with previously published experimental results. The simulation runs in less than 10 min on a cluster with four GPUs.

FIGURES IN THIS ARTICLE
<>
Copyright © 2011 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

CPU and GPU architecture overview

Grahic Jump Location
Figure 2

Iteration procedure for stencil subroutines

Grahic Jump Location
Figure 3

TURBOSTREAM weak scaling over multiple GPUs. Performance is measured as the inverse of the time per grid node per timestep.

Grahic Jump Location
Figure 4

Single stage geometry

Grahic Jump Location
Figure 6

Pitchwise averaged entropy function: exp(−Δs/R) (TURBOSTREAM )

Grahic Jump Location
Figure 7

Pitchwise averaged entropy function: exp(−Δs/R) (TBLOCK )

Grahic Jump Location
Figure 8

Cp0 contours—stator 3

Grahic Jump Location
Figure 9

Measured and predicted pitchwise averaged yaw angle

Grahic Jump Location
Figure 5

Computational domain

Tables

Errata

Discussions

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 Journal Articles
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