Sökresultat

Short- and long-time diffusion and dynamic scaling in suspensions of charged colloidal particles

Climate-driven changes in lake conditions during late MIS 3 and MIS 2: a high-resolution geochemical record from Les Echets, France

LES of swirling flows in gas turbine combustion chambers

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LES of H₂-air jet combustion in high enthalpy supersonic crossflow

Combustion LES of a multi-burner annular aero-engine combustor using a skeletal reaction mechanism for jet- a air mixtures

In this study we describe combustion simulations of a single sector and a fully annular generic multi-burner aero-engine combustor. The objectives are to facilitate the understanding of the flow, mixing and combustion processes to help improve the combustor design and the design process, as well as to show that it is now feasible to perform high-fidelity reacting flow simulations of full annular g

LES of Combustion Dynamics in an Ethylene-Hydrogen-Air Ramjet

The facsimile of The Rudiments or Principles of the German flute : the first English translation of Principes de la Flute Traversiere ou Flute d’Allemagne (1707) by Jacques Hotteterre Le Romain

Taking Issue With Le Poidevin's New Agnosticism

LES Modeling of the DLR Generic Single-Cup Spray Combustor : Validation and the Impact of Combustion Chemistry

Experimental and LES investigations of a SGT-800 burner in a combustion rig

A Comparative Study of LES Turbulent Combustion Models Applied to a Low Swirl Lean Premixed Burner

Measurements and LES of a SGT-800 Burner in a Combustion Rig

A Comparison of A Single and Multiphase Jets in a Crossflow Using LES

Noise computation of a turbo-engine jet exhaust based on LES and lighthill's acoustic analogy

Increasing noise regulations at urban airports force jet engine manufactures to develop and build more quiet engines. Over recent years, a significant reduction in fan and mechanical noise has been achieved. However, the jet exhaust is the principal source of noise. The acoustical field that is generated by a turboengine jet exhaust running near the ground level is considered. The full equations o

Study of the vortex breakdown in a conical swirler using LDV, LES and POD

Modeling and understanding the vortex breakdown is a key issue of modern Lean Premixed Combustors. The main difficulty of the problem is the unsteady behavior of this type of flow: Large structures resulting from vortex breakdown and the swirling shear-layers, affect directly the flame stabilization leading to heat-release fluctuations and combustion instabilities. Consequently, one needs to captu

Social movements, social science and politics : von Stein, Le Bon and two persistent problematiques

The growth of social science and sociology during modernity has always been characterized by a will to create predictability for human actions, under the modern conditions of liberty seen as contingent, unpredictable and unstable. To gain systematic knowledge became a way to solve, counteract or radicalize tensions in society, and thus outweighing the risks of contingency. Furthermore, this develo

Effect of burner geometry on swirl stabilized methane/air flames : A joint LES/OH-PLIF/PIV study

Swirl stabilized premixed flame analysis using of LES and POD

For environmental and human health reasons, the regulations on the emissions from combustion devices are getting more and more strict. In particular, it is important to abate the emission of pollutants deriving from combustion in gas turbines. A solution is the use of swirl stabilized, lean premixed combustion. Besides the beneficial effects, there are still some issues related to instabilities an

The ban of “old man’s joy” in China. A transitions study of Beijing’s regulatory change banning the use of lǎo tóu lè (老头乐) vehicles from 1 January 2024