Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Short-hole jet-in-crossflow velocity field and its relationship to film-cooling performance

Short-hole jet-in-crossflow velocity field and its relationship to film-cooling performance The velocity field of multiple jets-in-crossflow was examined experimentally for various jet hole supply plenum configurations using particle image velocimetry. The jet hydrodynamics are discussed in relation to implications on gas turbine film-cooling applications. The counter-flow plenum case produced desirable in-hole vortices of opposite rotational sense to that of the primary counter-rotating vortex pair (CRVP) in the jet. For this case, the interaction of in-hole vorticity and the CRVP weakened the CRVP, resulting in a lower trajectory and increased spanwise spreading. This is advantageous for film-cooling applications where surface coverage and jet attachment are necessary to prevent hot-gas penetration to the blade or vane surface. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Short-hole jet-in-crossflow velocity field and its relationship to film-cooling performance

Peterson,; Plesniak,
Experiments in Fluids , Volume 33 (6) – Dec 8, 2002
Download PDF
10 pages

Loading next page...
1
 
/lp/springer-journals/short-hole-jet-in-crossflow-velocity-field-and-its-relationship-to-XKwwzNBuud

References (23)

Publisher
Springer Journals
Copyright
Copyright © 2002 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
DOI
10.1007/s00348-002-0493-9
Publisher site
See Article on Publisher Site

Abstract

The velocity field of multiple jets-in-crossflow was examined experimentally for various jet hole supply plenum configurations using particle image velocimetry. The jet hydrodynamics are discussed in relation to implications on gas turbine film-cooling applications. The counter-flow plenum case produced desirable in-hole vortices of opposite rotational sense to that of the primary counter-rotating vortex pair (CRVP) in the jet. For this case, the interaction of in-hole vorticity and the CRVP weakened the CRVP, resulting in a lower trajectory and increased spanwise spreading. This is advantageous for film-cooling applications where surface coverage and jet attachment are necessary to prevent hot-gas penetration to the blade or vane surface.

Journal

Experiments in Fluids – Springer Journals

Published: Dec 8, 2002

There are no references for this article.