Comparative Simulation of Ionization Wave Dynamics in Ne and Ar within Continuous Medium Equations

2021 ◽  
Vol 47 (10) ◽  
pp. 1049-1064
Author(s):  
K. K. Trusov
Keyword(s):  
Continuous Medium ◽  
Ionization Wave ◽  
Wave Dynamics

Application of Weakly Anisotropic Models of a Continuous Medium for Solving the Problems of Wave Dynamics

2000 ◽  
Vol 53 (3) ◽  
pp. 37-86 ◽  
Author(s):  
Yuriy A. Rossikhin ◽  
Marina V. Shitikova
Keyword(s):  
Small Parameter ◽  
Wave Motion ◽  
Continuous Medium ◽  
Perturbation Technique ◽  
Anisotropic Models ◽  
Wave Dynamics ◽  
Theoretical Investigations ◽  
Anisotropic Elastic ◽  
Nonlinear Elastic ◽  
Wave Phenomena

A review of papers dealing with the investigation of wave phenomena occurring in weakly anisotropic elastic media is available in the present article. Several weakly anisotropic models of a continuous medium are presented and discussed which can be used to advantage both for solving the problems of wave dynamics and for carrying out comparison analysis of experimental data on measurements of elastic moduli of slightly anisotropic material by quasilongitudinal and quasitransverse waves with the results of the theoretical investigations. Based on these models, the behavior of harmonic and nonstationary bulk and surface waves and shock waves propagating in linear and nonlinear elastic isotropic and anisotropic media are examined. The problems are solved by the perturbation technique. The value characterizing the deviation of anisotropic elastic coefficients from isotropic moduli is chosen as a small parameter. Straight expansions of the desired values with respect to the small parameter are obtained, and the domains of nonuniformity of such expansions are indicated. For some of the problems under consideration, it has been possible to regularize the straight expansions of the values to be found by virtue of the especially selected manipulations of dilatation or translation of independent coordinates and to construct the uniformly valid solutions in the whole domain of wave motion existence. This review article contains 280 references.

Wave Analysis of the Charge Density Wave Dynamics in the Molecular Conductor (Perylene)2Pt(mnt)2 (mnt=maleonitriledithiolate)

1995 ◽  
Vol 5 (5) ◽  
pp. 539-545 ◽  
Author(s):  
J. Dumas ◽  
N. Thirion ◽  
M. Almeida ◽  
E. B. Lopes ◽  
M. J. Matos ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Analysis ◽  
Wave Dynamics ◽  
Molecular Conductor

CHARGE DENSITY WAVE DYNAMICS IN THE INCOMMENSURATE AND COMMENSURATE TaS3

1983 ◽  
Vol 44 (C3) ◽  
pp. C3-1639-C3-1645 ◽  
Author(s):  
P. Monceau ◽  
H. Salva ◽  
Z. Z. Wang
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Dynamics

Nonlinear Wave Dynamics in the Surf Zone

1997 ◽  
Author(s):  
O. R. Sørensen ◽  
P. A. Madsen ◽  
H. A. Schäffer
Keyword(s):  
Nonlinear Wave ◽  
Surf Zone ◽  
Wave Dynamics

Numerical Studies of Internal Wave Dynamics

1997 ◽  
Author(s):  
George F. Carnevale ◽  
M. C. Hendershott
Keyword(s):  
Internal Wave ◽  
Wave Dynamics ◽  
Numerical Studies

Shock loading of fixed flexible thread and orthotropic elastic membrane

2003 ◽  
Vol 3 ◽  
pp. 52-59
Author(s):  
S.S. Komarov ◽  
N.Yu. Tsvileneva ◽  
N.I. Miskaktin
Keyword(s):  
Numerical Methods ◽  
Dynamic Loading ◽  
Elastic Deformation ◽  
Numerical Algorithm ◽  
Shock Loading ◽  
Elastic Membrane ◽  
Wave Dynamics ◽  
Elastic Membranes ◽  
Pneumatic Structures

The main problems of the wave dynamics of flexible filaments and elastic membranes are solved. The reliability of the numerical algorithm proposed by the authors for calculating the elastic deformation of pneumatic structures under dynamic loading is confirmed when compared with the results of known studies obtained by analytical and numerical methods.

scholarly journals Cavitation Bubble Cloud Break-Off Mechanisms at Micro-Channels

Fluids ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 215
Author(s):  
Paul McGinn ◽  
Daniel Pearce ◽  
Yannis Hardalupas ◽  
Alex Taylor ◽  
Konstantina Vogiatzaki
Keyword(s):  
Cavitation Bubble ◽  
Cavitation Inception ◽  
Wave Dynamics ◽  
Bubble Cloud ◽  
Cloud Dynamics ◽  
Micro Channels ◽  
Physical Insight ◽  
Cloud Process ◽  
Good Agreement

This paper provides new physical insight into the coupling between flow dynamics and cavitation bubble cloud behaviour at conditions relevant to both cavitation inception and the more complex phenomenon of flow “choking” using a multiphase compressible framework. Understanding the cavitation bubble cloud process and the parameters that determine its break-off frequency is important for control of phenomena such as structure vibration and erosion. Initially, the role of the pressure waves in the flow development is investigated. We highlight the differences between “physical” and “artificial” numerical waves by comparing cases with different boundary and differencing schemes. We analyse in detail the prediction of the coupling of flow and cavitation dynamics in a micro-channel 20 m high containing Diesel at pressure differences 7 MPa and 8.5 MPa, corresponding to cavitation inception and "choking" conditions respectively. The results have a very good agreement with experimental data and demonstrate that pressure wave dynamics, rather than the “re-entrant jet dynamics” suggested by previous studies, determine the characteristics of the bubble cloud dynamics under “choking” conditions.

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