Communication: Escape kinetics of self-propelled Janus particles from a cavity: Numerical simulations

AbstractThis paper is devoted to the investigation of the kinetics of Hadamard-type fractional differential systems (HTFDSs) in two aspects. On one hand, the nonexistence of non-trivial periodic solutions for general HTFDSs, which are considered in some functional spaces, is proved and the corresponding eigenfunction of Hadamard-type fractional differential operator is also discussed. On the other hand, by the generalized Gronwall-type inequality, we estimate the bound of the Lyapunov exponents for HTFDSs. In addition, numerical simulations are addressed to verify the obtained theoretical results.

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Escape kinetics of active Janus particles from a circular cavity

10.26226/morressier.614222345a6b32ccbe1480f0 ◽

2021 ◽

Author(s):

Tanwi Debnath

Keyword(s):

Janus Particles ◽

Circular Cavity ◽

Kinetics Of

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Gasification kinetics of a bituminous coal at elevated pressures: Entrained flow experiments and numerical simulations

Fuel ◽

10.1016/j.fuel.2017.01.098 ◽

2017 ◽

Vol 196 ◽

pp. 210-216 ◽

Cited By ~ 14

Author(s):

Markus Steibel ◽

Stefan Halama ◽

Andreas Geißler ◽

Hartmut Spliethoff

Keyword(s):

Numerical Simulations ◽

Bituminous Coal ◽

Entrained Flow ◽

Elevated Pressures ◽

Kinetics Of ◽

Flow Experiments

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Analysis of the Shape of Stamp on the Distribution of Deformation in the Process of Alternate Pressing and Multiaxial Compression

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.220-221.963 ◽

2015 ◽

Vol 220-221 ◽

pp. 963-968 ◽

Cited By ~ 1

Author(s):

Marcin Kwapisz

Keyword(s):

Numerical Simulations ◽

Material Flow ◽

Iterative Process ◽

Compressive Strain ◽

Thermomechanical Analysis ◽

Plastic Working ◽

Compression Process ◽

Commercial Software ◽

Multiaxial Compression ◽

Kinetics Of

The paper presents the results of numerical simulations of the alternate indirect extrusion and multiaxial compression process, performed using commercial software designed for the thermomechanical analysis of plastic working processes, Forge 2009. The paper presents selected results on the distribution of deformation in the process of alternating extrusion and multiaxial compression. Examples of modifications to the shape of the die and punch, and their effect on the kinetics of the material flow as well as the likelihood of defects of materials are provided. The results confirm that suitable modifying the shape of the die and punch enables to obtain a material with no internal defects. Iterative process, alternating squeezing and multiaxial compressive strain allows the accumulation of which results in fragmentation of the microstructure.

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Self-Propelled Janus Particles in a Ratchet: Numerical Simulations

Physical Review Letters ◽

10.1103/physrevlett.110.268301 ◽

2013 ◽

Vol 110 (26) ◽

Cited By ~ 146

Author(s):

Pulak K. Ghosh ◽

Vyacheslav R. Misko ◽

Fabio Marchesoni ◽

Franco Nori

Keyword(s):

Numerical Simulations ◽

Janus Particles

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Macro and Macro/Micro Models of Solidification - Numerical Aspects of Process Simulation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.539-543.2564 ◽

2007 ◽

Vol 539-543 ◽

pp. 2564-2569

Author(s):

Romuald Szopa

Keyword(s):

Phase Transition ◽

Boundary Element Method ◽

Numerical Methods ◽

Numerical Simulations ◽

Boundary Element ◽

Process Simulation ◽

Additional Term ◽

Thermal Capacity ◽

Kinetics Of ◽

Fourier Equation

The solidification models basing on the Fourier equation with the additional term controlling the kinetics of phase transition are discussed. The different approaches to this term definition lead to the different solidification models, in particular the macro and the macro/micro ones can be taken into account. In the case of macro description the equation in which the parameter called a substitute thermal capacity is considered, while in the case of macro/micro approach the linear or exponential models of crystallization can be introduced. The solution of the problem can be found using the numerical methods. In this paper the boundary element method using discretization in time is applied, the examples of numerical simulations are also shown.

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Experimental Investigation of Nickel Alloy 600 Strain Hardening Recovery

Volume 6B: Materials and Fabrication ◽

10.1115/pvp2017-66137 ◽

2017 ◽

Author(s):

Antoine Andrieu ◽

Frederique Rossillon ◽

Gilles Rolland ◽

Sofiane Hendili ◽

David Albrecht

Keyword(s):

Heat Treatment ◽

Residual Stresses ◽

Numerical Simulations ◽

Base Alloy ◽

Alloy 600 ◽

Microstructural Changes ◽

Data Points ◽

As Stress ◽

Kinetics Of ◽

Metallurgical Processes

Prediction of residual stresses in welds is essential in order to evaluate the integrity of a component subject to degradation mechanisms such as Stress Corrosion Cracking. During welding operations, complex thermo-mechanical and metallurgical processes take place and lead to microstructural changes such as dynamic recovery and dynamic recrystallization. These microstructural changes induce a modification of hardening behavior that should be taken into account to accurately evaluate residual stresses through numerical simulations. A large test campaign was carried out in order to measure the recovery and recrystallization kinetics of Ni base alloy 600. Tests consisted in introducing 20% of plastic-strain at room temperature and then applying a thermal cycle with a Gleeble heat treatment simulator under stress release conditions. The comparison of mechanical properties prior to heat treatment and after heat treatment allows the evaluation of the recovery parameter that could be considered during welding numerical simulations. During this test campaign, various thermal cycles were applied. Experimental results show that the whole data points can be described as a function of Larson-Miller parameter. Mechanical results, metallurgical investigations and first numerical simulations are also presented in this paper.

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