Large-Eddy Simulation of Double-Row Compound-Angle Film-Cooling: Setup and Validation
dc.contributor.author
Gräf, Lars
dc.contributor.author
Kleiser, Leonhard
dc.date.accessioned
2024-08-22T08:43:14Z
dc.date.available
2024-08-22T08:39:44Z
dc.date.available
2024-08-22T08:43:14Z
dc.date.issued
2011-04
dc.identifier.issn
0045-7930
dc.identifier.issn
1879-0747
dc.identifier.other
10.1016/j.compfluid.2010.09.032
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/690277
dc.description.abstract
Film cooling is an important technique allowing to increase the thermal efficiency of gas turbines. By blowing cool air through an array of small holes in the turbine blades a thin fluid film is set up shielding the blades from the hot gas arriving from the combustion chamber.
This work presents a Large-Eddy Simulation of a particular film-cooling configuration known to provide a high level of effectiveness. It incorporates spanwise rows of holes which, by pairwise combination, generate a so-called anti-kidney-vortex. The simulation setup employs the Navier–Stokes code NSMB for compressible flow including the Approximate Deconvolution Model for subgrid turbulence modeling, the Synthetic-Eddy Method for turbulent inflow generation and reflection-reducing outflow boundary conditions. The setup is first validated by simulations of standard flat-plate turbulent boundary-layer flow without blowing. Results of the film-cooling simulation are then compared with related experimental data. They show reasonable agreement of the cooling effectiveness and temperature distribution, thus confirming the validity of the simulation approach which will be used in future studies of film cooling.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
Jet in crossflow
en_US
dc.subject
Film cooling
en_US
dc.subject
Compound angle
en_US
dc.subject
Double row
en_US
dc.subject
Kidney-vortex
en_US
dc.subject
Anti-kidney-vortex
en_US
dc.subject
Turbulent boundary-layer
en_US
dc.subject
Large-Eddy Simulation
en_US
dc.subject
LES
en_US
dc.subject
Approximate Deconvolution Model
en_US
dc.subject
ADM
en_US
dc.subject
Synthetic-Eddy Method
en_US
dc.title
Large-Eddy Simulation of Double-Row Compound-Angle Film-Cooling: Setup and Validation
en_US
dc.type
Conference Paper
dc.date.published
2010-09-27
ethz.journal.title
Computers & Fluids
ethz.journal.volume
43
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Comput. fluids
ethz.pages.start
58
en_US
ethz.pages.end
67
en_US
ethz.event
Symposium on High Accuracy Flow Simulations
en_US
ethz.event.location
Lausanne, Switzerland
en_US
ethz.event.date
February 15-16, 2010
en_US
ethz.identifier.wos
ethz.publication.place
Kidlington
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
03419 - Kleiser, Leonhard
en_US
ethz.leitzahl.certified
03419 - Kleiser, Leonhard
ethz.date.deposited
2017-06-09T07:57:01Z
ethz.source
ECIT
ethz.identifier.importid
imp593652890292012367
ethz.identifier.importid
imp59364d5fd427967326
ethz.ecitpid
pub:145611
ethz.ecitpid
pub:44318
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2024-08-22T08:39:46Z
ethz.rosetta.lastUpdated
2024-08-22T08:39:46Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/164144
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/25927
ethz.COinS
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