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Konstantinov, Mikhail and Wagner, Claus (2008) Numerical Investigation of Spray Formation in Coaxial Nozzles. In: ILASS 2008, Conference Proceedings (ILASS0). 22nd European Conference on Liquid Atomization and Spray Systems, 2008-09-08 - 2008-09-10, Como Lake, Italy. ISBN 978-88-903712-0-2.
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Abstract
In this paper the results of numerical investigation of atomization process of liquid fuel (Diesel) in Laval and coaxial nozzles are presented. The calculations have been performed using CFD codes of STAR-CD. The dependences between the different cases of pressure drop and spray formation have been analysed. For that purpose a model to simulate unsteady two-phase atomization process has been employed. Results of transient flow through various 3D nozzle shapes and the resulting spray development have to be discussed. The three type of nozzle (Laval, converging and coaxial) are considered. It was found that for the nozzles under consideration the finer atomization occurs for low initial mass flow rates. The atomization process in such nozzles occurs by fragmentation between high velocity gas jet and fuel volume. Further, the pressure conditions of gas flow are of great relevance for atomization process.
| Item URL in elib: | https://elib.dlr.de/55332/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | |||||||||
| Additional Information: | Tagungsband wurde begutachtet. | |||||||||
| Title: | Numerical Investigation of Spray Formation in Coaxial Nozzles | |||||||||
| Authors: |
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| Date: | September 2008 | |||||||||
| Journal or Publication Title: | ILASS 2008, Conference Proceedings | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Series Name: | Conference Proceedings on CD-ROM | |||||||||
| ISBN: | 978-88-903712-0-2 | |||||||||
| Status: | Published | |||||||||
| Keywords: | CFD, Laval Nozzle, Coaxial Nozzle, Atomization, Spray | |||||||||
| Event Title: | 22nd European Conference on Liquid Atomization and Spray Systems | |||||||||
| Event Location: | Como Lake, Italy | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 2008-09-08 - 2008-09-10 | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Transport | |||||||||
| HGF - Program Themes: | Transport System | |||||||||
| DLR - Research area: | Transport | |||||||||
| DLR - Program: | V VS - Verkehrssystem | |||||||||
| DLR - Research theme (Project): | V - Verkehrsentwicklung und Umwelt (old) | |||||||||
| Location: | Göttingen | |||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Fluid Systems | |||||||||
| Deposited By: | Konstantynov, Dr.-Ing.habil. Mykhailo | |||||||||
| Deposited On: | 29 Sep 2008 | |||||||||
| Last Modified: | 31 Jul 2019 19:22 |
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