Real-Time Model of Wake Vortices Based on Large Eddy Simulation Datasets

2005 ◽  
Author(s):  
Graham Spence ◽  
D Allerton ◽  
A Le Moigne ◽  
N Qin
Keyword(s):  
Large Eddy Simulation ◽  
Real Time ◽  
Time Model ◽  
Wake Vortices ◽  
Eddy Simulation ◽  
Large Eddy

Large eddy simulation of aircraft wake vortices within homogeneous turbulence - Crow instability

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 292-300 ◽  
Author(s):  
Jongil Han ◽  
Yuh-Lang Lin ◽  
David G. Schowalter ◽  
S. P. Arya ◽  
Fred H. Proctor
Keyword(s):  
Large Eddy Simulation ◽  
Homogeneous Turbulence ◽  
Wake Vortices ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Aircraft Wake ◽  
Crow Instability

Wake Vortex Model for Real-Time Flight Simulation Based on Large Eddy Simulation

2007 ◽  
Vol 44 (2) ◽  
pp. 467-475 ◽  
Author(s):  
Graham T. Spence ◽  
Alan Le Moigne ◽  
David J. Allerton ◽  
Ning Qin
Keyword(s):  
Large Eddy Simulation ◽  
Real Time ◽  
Flight Simulation ◽  
Wake Vortex ◽  
Vortex Model ◽  
Eddy Simulation ◽  
Simulation Based ◽  
Large Eddy

Within Homogeneous Turbulence: Crow Instability Large Eddy Simulation of Aircraft Wake Vortices

AIAA Journal ◽  
10.2514/2.956 ◽  
2000 ◽  
Vol 38 (2) ◽  
pp. 292-300 ◽  
Author(s):  
Jongil Han ◽  
Yuh-Lang Lin ◽  
David G. Schowalter ◽  
S. Pal Arya ◽  
Fred H. Proctor
Keyword(s):  
Large Eddy Simulation ◽  
Homogeneous Turbulence ◽  
Wake Vortices ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Aircraft Wake ◽  
Crow Instability

scholarly journals Large eddy simulation of wake vortices in the convective boundary layer

2000 ◽  
Author(s):  
Yuh-Lang Lin ◽  
Jongil Han ◽  
Jing Zhang ◽  
Feng Ding ◽  
S. Arya ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Large Eddy Simulation ◽  
Convective Boundary Layer ◽  
Convective Boundary ◽  
Wake Vortices ◽  
Eddy Simulation ◽  
Large Eddy

Large Eddy Simulation of a Turbulent Swirling Jet-A1 Spray Flame Incorporating Chemical Non-Equilibrium Effects Through the Flamelet Model

2014 ◽  
Author(s):  
Alain Fossi ◽  
Alain deChamplain ◽  
Ali Ghazlani ◽  
Bernard Paquet ◽  
Smail Kalla ◽  
...  
Keyword(s):  
Experimental Data ◽  
Large Eddy Simulation ◽  
Gas Temperature ◽  
Time Model ◽  
Flamelet Model ◽  
Eddy Simulation ◽  
Spray Flame ◽  
Swirling Jet ◽  
Large Eddy ◽  
Non Equilibrium

A large eddy simulation (LES) of a turbulent swirl stabilized jet-A1 flame is presented. The scope of the study is to incorporate a reduced chemistry model, as well as, coupling the turbulent flow characteristics to the chemical reactions and at the same time model the local chemical non-equilibrium due to the turbulent strain. Standard Eulerian and Lagrangian approaches are used to describe both gas and liquid phases, respectively. A joint presumed probability density function (PDF) is used to model turbulent-chemistry interactions in swirling jet-A1 spray flames. A one-component fuel, n-decane, is used as a surrogate for jet-A1. The combustion chemistry of the one component is represented through a reduced chemical kinetic mechanism (CKM) which comprises 139 species and 1 045 reactions, derived from the detailed jet fuel surrogate model, JetSurf 2.0. Numerical results of the gas velocity, the gas temperature and the species mole fractions are compared with a set of published experimental data of a steady flame. In addition to the overall reasonable agreement obtained with the experimental data, it is observed that, by combining a sufficiently realistic chemistry model with LES to simulate a jet-A1 spray flame, the prediction of major species is significantly improved while pollutants such as carbon monoxide (CO) and other species involved in slow reactions, are under predicted for reasons discussed in the paper.

Three-dimensional large eddy simulation of wake vortices - Comparison with field measurements

1997 ◽  
Author(s):  
Alexandre Corjon ◽  
Denis Darracq ◽  
Pascal Venzac ◽  
Philippe Bougeault ◽  
Alexandre Corjon ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Three Dimensional ◽  
Field Measurements ◽  
Wake Vortices ◽  
Eddy Simulation ◽  
Large Eddy
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