Characterisation of an air-blast injection device with forced periodic entries
Giuliani F., and Diers O., and Gajan P., and Ledoux M., (2002) Characterisation of an air-blast injection device with forced periodic entries. In: IUTAM Symposium on Turbulent Mixing and Combustion Kluwer Academic Publishers. ISBN 1-4020-0747-7.
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This research project is related to the control of combustion instability occurring intermittently in aeroengines. The unsteadiness of the flow in the combustion chamber is conducted by a particular instability called Combustion-Driven Oscillations (CDO). The experimental set-up at the ONERA Centre de Toulouse was designed in order to simulate the modulation exerted by CDO on the injection process. By pulsating both gas and liquid entries with specific actuators it is possible to reproduce the effect of the acoustic pressure on the resulting spray. This paper presents the first measurements performed on the free jet under non reacting and atmospheric conditions. The aim is to acquire a data set of the two-phase flow characteristics (pressure, temperature, fuel particle size and local spray density) along one period of pulsation. These experimental data are used to understand the periodic flow behaviour. They are also required for a further validation of a numerical code. This project is done in collaboration with SNECMA Moteurs and supported by the DGA.
|Document Type:||Contribution to a Collection|
|Title:||Characterisation of an air-blast injection device with forced periodic entries|
|Journal or Publication Title:||IUTAM Symposium on Turbulent Mixing and Combustion|
|In ISI Web of Science:||No|
|Publisher:||Kluwer Academic Publishers|
|Keywords:||Combustion-driven oscillations, air-blast injector, conditioned measurements, phase average processing, second invariant operator|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L TT - Triebwerkstechnologien|
|DLR - Research theme (Project):||L - Combustion Chamber Technologies|
|Institutes and Institutions:||Institute of Propulsion Technology|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||06 Jan 2010 13:25|
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