Transfert de technologie

Numerical Modeling and Experimental Investigations of Reactive Multiphase Flows for Aerospace Engines

Applications

Volume flux of liquid kerosene downstream an injection device

 > Aerospace and automotive engines

 > Gas transportation

 > Environment

• Improvement and optimisation of injection systems for reduction of pollutant emissions and combustion instabilities
• Development of new numerical tools for combustion systems design
• Improvement of two-phase flows measurement techniques
• Evaluation of alternative fuels properties for injection

 

Keywords

• Multiphase flows, Injection systems, Optical diagnostic techniques, Numerical models for sprays, CEDRE SPARTE

Advantages

Unique combination of experimentalists, numericians and testing facilities in Europe for fundamental studies of multiphase flows :

• Fundamental experiments for basic mechanisms understanding and model development in both ambient and real conditions
• Implementation of models in ONERA industrial code (CEDRE)
• Elaboration of detailed database in real condition for numerical tools validation

Very rich and diversified scientific environment (University, high schools, industry, etc.) in the aeronautics domain.

Numerical Modeling

A solution to every requirement:

• Development of SPARTE solver (Lagrangian approach for dispersed phase modelling) in the frame of CEDRE platform
• Virtual injector project combining DNS and LES numerical approach development
• SLOSH code for thermal and dynamical behaviour of propellant in tanks

Measurement techniques

• Classical methods for two-phase flow diagnostics (CCD camera, Malvern, PDA, LDA)
• Advanced optical diagnostic techniques: LIF, DGV, Rainbow, IR

Testing facilities

• Set of basic experiments (ambient conditions) based on monodisperse injection device for fundamental studies
• CAPITOL facility for conception and testing of advanced injection devices (at ambient conditions)
• MERCATO facility: simulation of two-phase flow ignition at various pressure and temperature conditions (P = 0,5 to 5 bar, T = 235 to 500 K
• New LACOM facility for experimental investigation of two-phase flow phenomena in high pressure and temperature environment (P = 1 – 50 bar, T = 300 - 1000 K, air mass flow-rate = 0.1 – 1 kg/s)

Expertise

• 2-phase flows in piping
• 2-phase models
• injection, liquid repartition measurements
• ignition

 

© ONERA 2009 - Crédits et conditions d'utilisation