Change search
ReferencesLink to record
Permanent link

Direct link
Stall development in a ported shroud compressor using PIV measurements and Large Eddy Simulation
Show others and affiliations
2010 (English)In: SAE Technical Papers, 2010Conference paper (Refereed)
Abstract [en]

Surge is a phenomenon that limits the operational range of the compressor at low mass flow rates. The objective of this research is to study effective operational range for a ported shroud compressor. The size of the compressor is typical for a turbocharger used on diesel engines. To be able to extend the operational range, the surge characteristics have to be assessed. This is done by performing measurement of the flow at the inlet to the compressor wheel and pressure fluctuations at the inlet and outlet of the compressor housing. Detailed numerical computations of the flow in the entire compressor section under similar operating conditions have also been carried out. The experimental work includes Particle Imaging Velocimetry (PIV) measurements of the instantaneous and mean velocity field at the inlet. At surge, low frequency pulsations are detected that seem to result from back flow already observed in stall. The numerical computations include details of the flow by having good spatial and temporal resolution and using Large Eddy Simulations (LES) to account for the turbulence. LES is most suitable for the surge flow since it resolves the large scale structures, such as flow separation and reversed flow, which characterize surge.

Place, publisher, year, edition, pages
, SAE Technical Papers, ISSN 0148-7191
Keyword [en]
Back flow, Flow byes, Large scale structures, Low mass, Low-frequency pulsations, Mean velocities, Numerical computations, Operating condition, Operational range, Particle imaging velocimetry, PIV measurements, Pressure fluctuation, Reversed flow, Temporal resolution, Compressors, Diesel engines, Flow rate, Large eddy simulation, Inlet flow
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-148849DOI: 10.4271/2010-01-0184ScopusID: 2-s2.0-84877244190OAI: diva2:738957
SAE 2010 World Congress and Exhibition; Detroit, MI; United States; 13 April 2010 through 13 April 2010

QC 20140819

Available from: 2014-08-19 Created: 2014-08-14 Last updated: 2014-08-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Fuchs, Laszlo
By organisation
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 25 hits
ReferencesLink to record
Permanent link

Direct link