0
TECHNICAL PAPERS

Reducing Bottlenecks in the CAD-to-Mesh-to-Solution Cycle Time to Allow CFD to Participate in Design

[+] Author and Article Information
W. N. Dawes, P. C. Dhanasekaran, A. A. J. Demargne, W. P. Kellar, A. M. Savill

CFD Laboratory and Whittle Laboratory, Department of Engineering, University of Cambridge, Cambridge, UK

J. Turbomach 123(3), 552-557 (Feb 01, 2000) (6 pages) doi:10.1115/1.1370162 History: Received February 01, 2000
Copyright © 2001 by ASME
Your Session has timed out. Please sign back in to continue.

References

Samareh,  J. H., 1999, “Status & Future of Geometry Modelling and Grid Generation of Design and Optimisation,” J. Aircr., 36, No. 1.
Dawes, W. N., 1996, “The Generation of 3D Stretched, Viscous Unstructured Meshes for Arbitrary Domains” ASME Paper 96-GT-55.
Dawes, W. N., Dhanasekaran, P. C., and Demargne, A. A. J., 1999, “NEWT_mesh mesh generation system” http://www2.eng.cam.ac.uk/∼mea/fluid/dawes/newt_mesh2/newt_mesh2.htm.
Löhner R., 1994, “CFD via Unstructured Grids: Trends & Applications” Frontiers of CFD, edited by Caughey, D. A., and Hafez, M. M. CMAS: Computational Methods in Applied Science.
Fergusson, N., 1987, “Delaunay Edge Swapping in Three Dimensions,” Ph.D. thesis, Institute for Numerical & Computational Analysis, Dublin.
Peraire,  J., Peiro,  J., Formaggia,  J., Morgan,  K., and Zienkiewicz,  Q. C., 1988, “Finite Element Euler Computations in Three Dimensions,” Int. J. Numer. Methods Eng., 26, pp. 2135–2159.
Jameson, A., Baker T. J., and Weatherhill, N. P., 1986, “Calculation of Inviscid Transonic Flow over a Complete Aircraft,” AIAA Paper 86-0103.
Dawes, W. N., 1992, “The Practical Application of Solution Adaption to the Numerical Simulation of Complex Turbomachinery Problems,” Progress in Aerospace Sciences, Vol. 29, pp. 221–269.
Dawes, W. N., 1993, “Simulating Unsteady Turbomachinery Flows on Unstructured Meshes which Adapt both in Time and Space,” ASME Paper 93-GT-104.
Rycroft, N., Savill, A. M., and Dawes, W. N., 1999, “The Parallelisation of an Unstructured Mesh CFD Code, CUED Report, Cambridge University Engineering Department.
Longley, J. P., and Demargne, A. A. J., 2000, “The Aerodynamic Interaction of Stator Shroud Leakage and Mainstream Flows in Compressors,” ASME Paper No. 2000-GT-570.
Birkby, P., Cant, R. S., Dawes, W. N., Demargne, A. A. J., Dhanasekaran, P. C., Kellar, W. P., Rycroft, N. C., Savill, A. M., Eggels, R. L. G. M., and Jennions, I. K., 2000, “CFD Analysis of a Complete Industrial Lean Pre-mixed Gas Turbine Combustor,” ASME Paper No. 2000-GT-131.
Kellar, W. P., Savill, A. M., and Dawes, W. N., 1999, “Integrated CAD/CFD Visualisation of a Generic F1 Car Front Wheel Flowfield,” Lecture Notes in Computer Science, Vol. 1593.
Kellar, W. P., “Geometry Modelling in CFD,” CUED/CFD Lab Report, 1999.

Figures

Grahic Jump Location
Desirable attributes in a useful CAD-mesh-CFD system
Grahic Jump Location
Fuel injector holes from typical combustor geometry
Grahic Jump Location
Inlet aerofoil section from typical combustor geometry
Grahic Jump Location
Typical CAD surface representation errors together with “healed” result
Grahic Jump Location
“March and grab”: iterative insertion of surface triangles to guarantee surface integrity
Grahic Jump Location
A “sliver” formed from nearly co-planar nodes with compact circumsphere
Grahic Jump Location
Parallel speedup of unstructured flow solver on a Hitachi MPP
Grahic Jump Location
Zoom view near the LE of a compressor with underhub leakage
Grahic Jump Location
Predicted and measured total pressures at exit from a compressor with and without underhub leakage
Grahic Jump Location
Surface mesh for the complete combustion chamber
Grahic Jump Location
Cold flow solution showing velocity vectors and pressure contours, subsynchronous idle operating point

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