scholarly journals Ultraefficient reduced model for countercurrent two-layer flows

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Gianluca Lavalle ◽  
Jean-Paul Vila ◽  
Mathieu Lucquiaud ◽  
Prashant Valluri
Keyword(s):  
Reduced Model

Reduced model error analysis “application to synchronous machines"

1994 ◽  
Vol 4 (10) ◽  
pp. 1999-2012 ◽  
Author(s):  
Nabil Derbel ◽  
Mohamed B.A. Kamoun ◽  
Michel Poloujadoff
Keyword(s):  
Error Analysis ◽  
Model Error ◽  
Synchronous Machines ◽  
Reduced Model ◽  
Analysis Application

REDUCED MODEL OF PLASMA DISCHARGE CONTROL IN TOKAMAK WITH IRON CORE

2020 ◽  
Vol 7 (3) ◽  
pp. 11-22
Author(s):  
VALERY ANDREEV ◽  
◽  
ALEXANDER POPOV
Keyword(s):  
Optimal Control ◽  
Inverse Problem ◽  
Optimal Control Problem ◽  
Control Problem ◽  
Nonlinear Behavior ◽  
Plasma Discharge ◽  
Reduced Model ◽  
Iron Core ◽  
Power Sources ◽  
Real Power

A reduced model has been developed to describe the time evolution of a discharge in an iron core tokamak, taking into account the nonlinear behavior of the ferromagnetic during the discharge. The calculation of the discharge scenario and program regime in the tokamak is formulated as an inverse problem - the optimal control problem. The methods for solving the problem are compared and the analysis of the correctness and stability of the control problem is carried out. A model of “quasi-optimal” control is proposed, which allows one to take into account real power sources. The discharge scenarios are calculated for the T-15 tokamak with an iron core.

Hybrid Reduced Model of Rotor

2013 ◽  
Vol 60 (3) ◽  
pp. 319-333
Author(s):  
Rafał Hein ◽  
Cezary Orlikowski
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Hybrid Model ◽  
Rotor System ◽  
Reduced Model ◽  
Order Model ◽  
Gyroscopic Effect ◽  
Reduced Models ◽  
Rigid Finite Element Method ◽  
Low Order

Abstract In the paper, the authors describe the method of reduction of a model of rotor system. The proposed approach makes it possible to obtain a low order model including e.g. non-proportional damping or the gyroscopic effect. This method is illustrated using an example of a rotor system. First, a model of the system is built without gyroscopic and damping effects by using the rigid finite element method. Next, this model is reduced. Finally, two identical, low order, reduced models in two perpendicular planes are coupled together by means of gyroscopic and damping interaction to form one model of the system. Thus a hybrid model is obtained. The advantage of the presented method is that the number of gyroscopic and damping interactions does not affect the model range

Limitations of a reduced model for the simulation of hydrogen/air combustion

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1752-1754
Author(s):  
W. S. Westmoreland ◽  
Pasquale Cinnella
Keyword(s):  
Reduced Model

scholarly journals Unfolding of Globular Proteins: Monte Carlo Dynamics of a Realistic Reduced Model

2003 ◽  
Vol 85 (5) ◽  
pp. 3271-3278 ◽  
Author(s):  
Andrzej Kolinski ◽  
Piotr Klein ◽  
Piotr Romiszowski ◽  
Jeffrey Skolnick
Keyword(s):  
Monte Carlo ◽  
Globular Proteins ◽  
Reduced Model ◽  
Monte Carlo Dynamics

Local testing and reduced model validation of thermal-formed thin-film polyimide panels

2008 ◽  
Vol 22 (6) ◽  
pp. 1412-1426 ◽  
Author(s):  
Jonathan T. Black ◽  
Suzanne Weaver Smith ◽  
Jack Leifer ◽  
Larry J. Bradford
Keyword(s):  
Thin Film ◽  
Model Validation ◽  
Reduced Model
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