Angular divergence of laser beams disturbed by an aero-engine exhaust jet

2002 ◽  
Author(s):  
Vladmir S. Sirazetdinov ◽  
Dmitry I. Dmitriev ◽  
Inga V. Ivanova ◽  
David H. Titterton
Keyword(s):  
Laser Beams ◽  
Angular Divergence ◽  
Engine Exhaust ◽  
Aero Engine ◽  
Exhaust Jet

scholarly journals Parametric design of non-axisymmetric separate-jet aero-engine exhaust systems

2019 ◽  
Vol 93 ◽  
pp. 105186 ◽  
Author(s):  
John J. Otter ◽  
Robert Christie ◽  
Ioannis Goulos ◽  
David G. MacManus ◽  
Nicholas Grech
Keyword(s):  
Parametric Design ◽  
Engine Exhaust ◽  
Aero Engine ◽  
Exhaust Systems

Application of the Regularization Chaos Prediction Model in Aero-Engine Performance Parameters

2012 ◽  
Vol 424-425 ◽  
pp. 347-351 ◽  
Author(s):  
Yong Sheng Shi ◽  
Jun Jie Yue ◽  
Yun Xue Song
Keyword(s):  
Prediction Model ◽  
Simulation Analysis ◽  
Search Algorithm ◽  
Engine Performance ◽  
Forecasting Model ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Engine Exhaust ◽  
Aero Engine ◽  
Exhaust Gas Temperature

Based on the research of complexity and non-linearity of aero-engine exhaust gas temperature (EGT) system, a regularization chaotic prediction model was proposed to build short time forecasting model of EGT. In this paper, in order to gain the best parameter to improve the accuracy of the forecasting model, a simple search algorithm arithmetic was adopted. The simulation analysis shows that the proposed forecasting model obviously exceeded the traditional chaotic forecasting model on prediction accuracy. Therefore, this arithmetic is efficient and feasible for a short-term prediction of aero-engine exhaust gas temperature

Characterization of a Counterflow Thrust Vectoring Scheme on a Gas Turbine Engine Exhaust Jet

2006 ◽  
Author(s):  
Delfim Dores ◽  
Maria Madruga Santos ◽  
Anjaneyulu Krothapalli ◽  
Luiz Lourenco ◽  
Emmanuel Collins ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Engine Exhaust ◽  
Thrust Vectoring ◽  
Turbine Engine ◽  
Exhaust Jet

Helicopter engine exhaust rotor downwash effects on laser beams

2015 ◽  
Author(s):  
Markus Henriksson ◽  
Lars Sjöqvist ◽  
Dirk Seiffer
Keyword(s):  
Laser Beams ◽  
Engine Exhaust

Analytic expressions for the angular and the spectral fluxes at Compton X-ray sources

2017 ◽  
Vol 24 (1) ◽  
pp. 312-322
Author(s):  
M. Jacquet ◽  
C. Bruni
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Energy Spread ◽  
Laser Beams ◽  
Angular Divergence ◽  
X Ray ◽  
Angular Acceptance ◽  
Analytic Expressions

The goal of this paper is to express simply the number of photons impinging on a target in the framework of accelerator-based Compton X-ray sources. From the basic kinematics of Compton sources, analytic formulas for the angular and the spectral fluxes are established as functions of the energy spread or/and the angular divergence of the electron and the laser beams. Their detailed predictions are compared with Monte Carlo simulations. These analytic expressions allow one to compute in a simple and precise way the X-ray flux in a given angular acceptance and a given energy bandwidth, knowing the characteristics of the incoming beams.

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