About: Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The physical 1-D model of a radial turbine consists of a set of gas ducts featuring total pressure and/or temperature changes and losses. Therefore, the wave propagation and filling/emptying plays a significant role if a turbine is subjected to unsteady gas flow. The results of unsteady turbine simulation using the basic modules of generalized 1-D manifold solver in GT Power are demonstrated. The turbine model calibration parameters can be identified by means of 1-D steady model used in optimization code loop. The examples of model results are compared to steady flow map predictions of turbine efficiency and engine pumping loop work. The model may be used for prediction of turbine data in out-of-design points as presented in the paper. The other important role of a model, however, is an accurate evaluation of turbine parameters from pressure and speed measurements at an engine in operation. The physical 1-D model of a radial turbine consists of a set of gas ducts featuring total pressure and/or temperature changes and losses. Therefore, the wave propagation and filling/emptying plays a significant role if a turbine is subjected to unsteady gas flow. The results of unsteady turbine simulation using the basic modules of generalized 1-D manifold solver in GT Power are demonstrated. The turbine model calibration parameters can be identified by means of 1-D steady model used in optimization code loop. The examples of model results are compared to steady flow map predictions of turbine efficiency and engine pumping loop work. The model may be used for prediction of turbine data in out-of-design points as presented in the paper. The other important role of a model, however, is an accurate evaluation of turbine parameters from pressure and speed measurements at an engine in operation. (en)
Title	Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance (en)
skos:prefLabel	Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance (en)
skos:notation	RIV/68407700:21220/09:00161308!RIV10-MSM-21220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0568)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Vítek, Oldřich Macek, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	307735
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/09:00161308
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	radial turbine; unsteady simulation; wave propagation; prediction of turbine map; model calibration; distributed parameters; rotating pipe; 1-D manifold solver; turbocharging; exhaust system (en)
http://linked.open.../riv/klicoveSlovo	distributed parameters model calibration wave propagation exhaust system radial turbine turbocharging 1-D manifold solver prediction of turbine map rotating pipe unsteady simulation
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[AFD14265BE23]
http://linked.open...i/riv/nazevZdroje	SAE International Journal of Engines
http://linked.open...in/vavai/riv/obor	JT
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Josef Božek Research Center of Engine and Automotive Technology II
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	2
http://linked.open...iv/tvurceVysledku	Macek, Jan Vítek, Oldřich
issn	1946-3936
number of pages	16 (xsd:int)
http://localhost/t...ganizacniJednotka	21220
is http://linked.open...avai/riv/vysledek of	Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance Comparison of Lumped and Unsteady 1-D Models for Simulation of Radial Turbine Performance

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