Long-lived laser-induced microwave plasma guides in the atmosphere: Self-consistent plasma-dynamic analysis and numerical simulations

2010 ◽  
Vol 108 (3) ◽  
pp. 033113 ◽  
Author(s):  
M. N. Shneider ◽  
A. M. Zheltikov ◽  
R. B. Miles
Keyword(s):  
Dynamic Analysis ◽  
Numerical Simulations ◽  
Microwave Plasma ◽  
Plasma Dynamic ◽  
Self Consistent

scholarly journals A two-step modelling approach for plasma reactors – experimental validation for CO2 dissociation in surface wave microwave plasma

2019 ◽  
Vol 4 (7) ◽  
pp. 1253-1269 ◽  
Author(s):  
Sergio H. Moreno ◽  
Andrzej I. Stankiewicz ◽  
Georgios D. Stefanidis
Keyword(s):  
Surface Wave ◽  
Performance Analysis ◽  
Experimental Validation ◽  
Microwave Plasma ◽  
Second Step ◽  
Plasma Reactors ◽  
Plasma Model ◽  
Self Consistent ◽  
Modelling Approach

Modelling approach that comprises a 2D self-consistent plasma model for discharge characterization in the first step and a 0D global plasma model for performance analysis in the second step.

Switched Model and Dynamic Analysis of a Hydroturbine Governing System in the Process of Load Rejection Transient

2017 ◽  
Vol 139 (10) ◽  
Author(s):  
Huanhuan Li ◽  
Diyi Chen ◽  
Feifei Wang ◽  
Hao Zhang
Keyword(s):  
Mathematical Model ◽  
Dynamic Analysis ◽  
Numerical Simulations ◽  
Dynamic Characteristics ◽  
Nonlinear Dynamic ◽  
Hydropower Station ◽  
Transfer Coefficients ◽  
Operational Conditions ◽  
Governing System ◽  
Hammer Impact

In this paper, we pay attention to studying the switched model of the hydroturbine governing system (HTGS) by introducing the concept of the switching of operational conditions. More specifically, utilizing the data of an existent hydropower station in China, we propose six nonlinear dynamic transfer coefficients of the hydroturbine, which can better describe the dynamic characteristics of the HTGS in the process of load rejection transient. Moreover, the elastic water hammer-impact of the penstock system and the nonlinearity of the generator for the process of load rejection transient are considered. Based on the combination of the different regulation modes of the governor and the corresponding running conditions of the hydroelectric generating unit, a novel nonlinear dynamic switched mathematical model of the HTGS is finally established. Meanwhile, the nonlinear dynamic behaviors of the governing system are exhaustively investigated using numerical simulations. These methods and analytical results will provide some theory bases for running a hydropower station.

Infinitely Variable Transmission of Racheting Drive Type Based on One-Way Clutches

2004 ◽  
Vol 126 (4) ◽  
pp. 673-682 ◽  
Author(s):  
F. G. Benitez ◽  
J. M. Madrigal ◽  
J. M. del Castillo
Keyword(s):  
Numerical Simulation ◽  
Dynamic Analysis ◽  
Numerical Simulations ◽  
Mechanical Efficiency ◽  
Testing Equipment ◽  
Epicyclic Gear ◽  
The Family ◽  
Variable Transmission ◽  
Infinitely Variable Transmission ◽  
Oscillatory Character

An infinitely variable transmission (IVT), based on the use of one-way action clutches, belonging to the family of ratcheting drives is described. The mechanical foundations and numerical simulations carried out along this research envisage a plausible approach to its use as gear-box in general mechanical industry and its prospective use in automobiles and self-propelled vehicles. The system includes one-way clutches—free wheels or overrunning clutches—and two epicyclic gear systems. The output velocity, with oscillatory character, common to the ratcheting drives systems, presents a period similar to that produced by alternative combustion motors, making this transmission compatible with automobile applications. The variation of the transmission is linear in all the working range. The kinematics operating principles behind this IVT is described followed by a numerical simulation of the dynamic analysis. A prototype has been constructed and tested to assess its mechanical efficiency for different reduction ratios. The efficiency values predicted by theory agree with those experimentally obtained on a bench-rig testing equipment.

scholarly journals Ligand rebinding: self-consistent mean-field theory and numerical simulations applied to surface plasmon resonance studies

2005 ◽  
Vol 34 (7) ◽  
pp. 943-958 ◽  
Author(s):  
Manoj Gopalakrishnan ◽  
Kimberly Forsten-Williams ◽  
Theresa R. Cassino ◽  
Luz Padro ◽  
Thomas E. Ryan ◽  
...  
Keyword(s):  
Field Theory ◽  
Surface Plasmon Resonance ◽  
Numerical Simulations ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Mean Field Theory ◽  
Mean Field ◽  
Self Consistent ◽  
Ligand Rebinding

Deployment Simulation of a Parabolic Space Antenna with Rigid Panels

1993 ◽  
Vol 8 (1-2) ◽  
pp. 63-70 ◽  
Author(s):  
B. Specht
Keyword(s):  
Numerical Simulation ◽  
Dynamic Analysis ◽  
Numerical Simulations ◽  
Failure Mode ◽  
Space Antenna ◽  
Inverse Dynamic ◽  
Static And Dynamic Analysis ◽  
Software Packages ◽  
Panel Type

This paper deals with the numerical simulation of the deployment process of a parabolic space reflector. The described deployable antenna is of the rigid panel type. The numerical simulations cover kinematic, inverse dynamic, quasi-static and dynamic analysis modes. Special phenomena included are hinge friction and the investigation of a deployment failure mode. Different software packages have been applied and their performance has been assessed.

Dynamic Analysis of an SIRS Model with Nonlinear Incidence Rate

2012 ◽  
Vol 155-156 ◽  
pp. 23-26
Author(s):  
Jun Hong Li ◽  
Ning Cui ◽  
Liang Cui ◽  
Cai Juan Li
Keyword(s):  
Hopf Bifurcation ◽  
Dynamic Analysis ◽  
Numerical Simulations ◽  
Epidemic Model ◽  
Global Dynamics ◽  
Nonlinear Incidence Rate ◽  
Dulac Function ◽  
Sirs Epidemic Model ◽  
Sirs Model ◽  
Disease Free

In this paper, we study the global dynamics of an SIRS epidemic model with nonlinear inci- dence rate. By means of Dulac function and Poincare-Bendixson Theorem, we proved the global asy- mptotical stable results of the disease-free equilibrium. It is then obtained the model undergoes Hopf bifurcation and existence of one limit cycle. Some numerical simulations are given to illustrate the an- alytical results.

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