modeling and onera

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Modeling of the Ignition Inside a Turbojet Combustor: Application to In-Flight Relight

In the paper, the numerical model is presented in detail, and some examples of its application to the experimental configuration are discussed. At high altitude, the operating critical conditions make the ignition and the relighting of jet engine combustors more difficult to control. The objective of ONERA is to develop...

Tags: ONERA, Productivity, Business Operations, Research & Development, Modeling

White papers 2004-10-04

Modeling of Internal Two-Phase Flow Field Inside a Turbojet Combustion Chamber. Application to In-Flight Relight

The study presented in this paper is conducted in the frame of turbojets combustion chambers optimization by the increase of efficiency and the reduction of polluting emissions. The operating critical conditions at high altitude make it more difficult to control both the ignition and the re-light process after an accidental...

Tags: Research & Development, Modeling, ONERA, Business Operations

White papers 2004-10-01

Evaluation of Finite Element Modeling Methodologies for the Design of Crashworthy Composite Commercial Aircraft Fuselage

This paper aim at developing methodologies to design crashworthy composite commercial aircraft fuselages, a 2 frames section based on the A321 AIRBUS standard dimensions was manufactured by AIRBUS France, in order to be crash-tested at the Toulouse Aeronautical Test Centre. Though most p re-test numerical analyses confirmed this expected rupture...

Tags: ONERA, Aircraft, Airbus, Modeling, Aerospace & Defense, Research & Development, Manufacturing, Business Operations

White papers 2004-09-30

Additional Resources

Bigger, faster, more: demand for heavy duty computing power is perpetually increasing, but computer manufacturers disagree about the way the hunger will be satisfied in the future. (Computing).

THE world's fastest supercomputer, capable of more than 12 trillion calculations per second (12 teraflops), is being installed by the US Energy Department to simulate the explosions of nuclear bombs. The nuclear test ban moratorium is forcing the pace in high performance...

Articles 2000-09-01

MEETINGS - FRENCH NATIONAL COMPOSITES EVENT

Topics for the eighth Journes Nationales sur les Matriaux Composites JNC to be organized by AMAC, the French composites association, include mechanical modelling, new matrices, processing and interfaces. The meeting is to be held on 16 - 18 November 1992, at the Ecole Polytechnique, Palaiseau...

Articles 1992-01-01