| 1. | Engines - A new tool for the design of combustion chambers |
| | Engines - A new tool for the design of combustion chambers... Engines - A New Tool for the Design of Combustion Chambers... |
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| 2. | More realistic virtual engines - Zoom in the Lab |
| | More realistic virtual engines - Zoom in the Lab... 46 - More realistic virtual engines... Visualization of droplets dispersed in the TLC combustion chamber tested on the M1 test bench at à Onera Palaiseau DEFA computation executed using the CEDRE package Modeling what happens in the combustion chamber as accurately as possible is very important in the design of more environmentally friendly aircraft engines.... |
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| 3. | The droplet and the engine - Zoom in the Lab |
| | The droplet and the engine - Zoom in the Lab... The droplet and the engine... This test bench simulates the evaporation of fuel droplets in engine conditions.... Laser techniques are used to measure the dynamics of the whole process.[Photo Antoine Gonin ] And what if we could reduce the consumption of aeronautic engines by controlling the evaporation of micro-droplets of kerosene ? " In a conventional internal combustion engine, whether automobile or aeronautic, the fuel is injected as a mist of droplets into the combustion chamber where, by the effect of heat, these drops evaporate and the vapor created is mixed with air before igniting " explains Fréderic Grisch, researcher of the Measurement Physics department and Onera-side coordinator of the CNRS-Onera aerospace federating project " Experimental and analytic methods for multi-component mists ".... |
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| 4. | Heterogeneous multiphasic flows - ONERA / DMAE-EN |
| | The spray in the combustion chamber of an aeronautical engine... The mission of the research unit " Heterogeneous multiphase " is to understand and model the phenomena involved in fuel injection in aeronautical engines in space or on Earth.... In the heart of the engines... One common characteristic of a number of liquid-fueled industrial systems (boilers, combustion chambers, engines) is the combustion of a dispersed phase (solid particles or droplets) in a gaseous phase.... |
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| 5. | Strain Distribution in a Rocket Engine Fuel Block - ONERA's Science Pictures |
| | Strain Distribution in a Rocket Engine Fuel Block - ONERA's Science Pictures... Strain distribution in a rocket engine fuel block ()... |
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| 6. | Brightness Picture of the Jet of a Hydrogen-Air Combustion Engine - ONERA's Science Pictures |
| | Brightness Picture of the Jet of a Hydrogen-Air Combustion Engine - ONERA's Science PicturesWho are we ?Science Pictures... Brightness Picture of the Jet of an Engine copyright © ONERA 1996-2006. Brightness picture of the jet of a hydrogen-air combustion engine (). Pictures. |
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| 7. | Fan Noise radiated downstream a Coaxial Jet Engine - ONERA's Science Pictures |
| | Fan Noise radiated downstream a Coaxial Jet Engine - ONERA's Science Pictures... Fan Noise radiated downstream a Coaxial Jet Engine copyright © Onera 2006 - Tous droits réservés... Numerical simulation of the fan noise radiated downstream a coaxial jet engine... This is why airframe (Airbus, Boeing, etc.) and engine (Snecma, Rolls-Royce, etc.) manufacturers become more and more concerned about the reduction of the sound emissions of their future products.... |
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| 8. | Transatmospheric Aircraft (AHYP1) |
| | A Hair-Raising Engine... A scramjet is an engine that operates from Mach 6 to Mach 12, i.e. at hypersonic speeds.... Like a ramjet, it compresses the air simply by slowing it down in the air intake, but the speed remains supersonic at the combustor inlet and throughout the engine, which is why this type of engine is called scramjet (for supersonic combustion ramjet).... |
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| 9. | Transatmospheric Aircraft (AHYP1) |
| | A Hair-Raising Engine... |
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| 10. | Launchers (LANC3) |
| | A Water Engine... |
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