Numerical studies of flow in fuel injector nozzles - Interaction of separation and cavitation

Gnter H. Schnerr; Claas Vortmann; Jrgen Sauer

doi:10.1002/9783527610785.ch21

Numerical studies of flow in fuel injector nozzles - Interaction of separation and cavitation

Gnter H. Schnerr, Claas Vortmann, Jrgen Sauer

University of Karlsruhe

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

The flow through injector nozzles is important because it affects the spray and the atomization process. If cavitation occurs inside the nozzle, the numerical modelling is quite complicated. The first part of this report deals with the numerical investigation of single-phase flow through an injector nozzle. Experimental data are compared with laminar and turbulent flow calculations. The results are discussed by assuming that cavitation occurs if the pressure drops beyond the vapor pressure. The influence of the throat inlet radius is investigated. Preliminary studies of cavitating flow were performed by using a law of state-cavitation model.

Original language	English
Title of host publication	Transient Phenomena in Multiphase and Multicomponent Systems
Publisher	Wiley Blackwell
Pages	335-350
Number of pages	16
ISBN (Electronic)	9783527610785
ISBN (Print)	9783527271498
DOIs	https://doi.org/10.1002/9783527610785.ch21
State	Published - 31 May 2007
Externally published	Yes

Keywords

Multicomponent systems
Multiphase systems
Numerical methods
Numerical studies of flow in fuel injector nozzles
Separation and cavitation interaction
Single-phase flow through an injector nozzle
Transient phenomena

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10.1002/9783527610785.ch21

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abstract = "The flow through injector nozzles is important because it affects the spray and the atomization process. If cavitation occurs inside the nozzle, the numerical modelling is quite complicated. The first part of this report deals with the numerical investigation of single-phase flow through an injector nozzle. Experimental data are compared with laminar and turbulent flow calculations. The results are discussed by assuming that cavitation occurs if the pressure drops beyond the vapor pressure. The influence of the throat inlet radius is investigated. Preliminary studies of cavitating flow were performed by using a law of state-cavitation model.",

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AU - Schnerr, Gnter H.

AU - Vortmann, Claas

AU - Sauer, Jrgen

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Y1 - 2007/5/31

N2 - The flow through injector nozzles is important because it affects the spray and the atomization process. If cavitation occurs inside the nozzle, the numerical modelling is quite complicated. The first part of this report deals with the numerical investigation of single-phase flow through an injector nozzle. Experimental data are compared with laminar and turbulent flow calculations. The results are discussed by assuming that cavitation occurs if the pressure drops beyond the vapor pressure. The influence of the throat inlet radius is investigated. Preliminary studies of cavitating flow were performed by using a law of state-cavitation model.

AB - The flow through injector nozzles is important because it affects the spray and the atomization process. If cavitation occurs inside the nozzle, the numerical modelling is quite complicated. The first part of this report deals with the numerical investigation of single-phase flow through an injector nozzle. Experimental data are compared with laminar and turbulent flow calculations. The results are discussed by assuming that cavitation occurs if the pressure drops beyond the vapor pressure. The influence of the throat inlet radius is investigated. Preliminary studies of cavitating flow were performed by using a law of state-cavitation model.

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KW - Multiphase systems

KW - Numerical methods

KW - Numerical studies of flow in fuel injector nozzles

KW - Separation and cavitation interaction

KW - Single-phase flow through an injector nozzle

KW - Transient phenomena

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BT - Transient Phenomena in Multiphase and Multicomponent Systems

PB - Wiley Blackwell

ER -

Numerical studies of flow in fuel injector nozzles - Interaction of separation and cavitation

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