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Related papers: Shock wave bending around a dusty plasma void

200 papers

A shock wave propagating perpendicularly to an ambient magnetic field accelerates particles considerably faster than in the parallel propagation regime. However, the perpendicular acceleration stops after the shock overruns a circular…

High Energy Astrophysical Phenomena · Physics 2023-02-06 Mikhail Malkov , Martin Lemoine

We continue the study of dispersive quantum shock waves in a one-dimensional Bose gas beyond the mean-field approximation. In a recent work by Simmons et al. [Phys. Rev. Let. 125, 180401 (2020)], the oscillatory shock wave train developing…

Quantum Gases · Physics 2023-07-27 S. A. Simmons , J. C. Pillay , K. V. Kheruntsyan

A collisionless shock wave is treated as a streaming plasma instability in the interstellar medium (ISM). We assume that in a steady state, this instability propagates through the ISM as a self-driven plasma instability, whereby the…

High Energy Astrophysical Phenomena · Physics 2018-10-30 Vladimir Zekovic , Bojan Arbutina

The propagation of a cylindrical shock wave in a self-gravitating, rotating axisymmetric dusty gas under the action of monochromatic radiation with a constant intensity per unit area, which has variable azimuthal and axial components of…

Fluid Dynamics · Physics 2018-07-20 Ruchi Bajargaan , Arvind Patel

It is shown that a broad density perturbation in a Fermi (Tonks) cloud takes a shock wave form in the course of time evolution. A very accurate analytical description of shock formation is provided. A simple experimental setup for the…

Soft Condensed Matter · Physics 2009-11-10 Bogdan Damski

The shock wave instability induced when interacting with a small waviness on an interface was investigated analytically and numerically. The perturbation to the shock was phenomenologically treated assuming this as the consequence of the…

Fluid Dynamics · Physics 2018-08-29 A. Markhotok

We experimentally investigate the impulsive shock propagation caused by an impact into vertically oriented 3D granular packings under gravity. We observe a crossover of wave propagation, from sound excitation at low impact to shock front…

Soft Condensed Matter · Physics 2025-09-18 S. van den Wildenberg , X. Nguyen , A. Tourin , X. Jia

We investigate effects of upstream density fluctuations on the diffusive shock acceleration by Monte Carlo simulations. The simulations show that particles are reaccelerated in the shock downstream region by a sound wave generated at the…

High Energy Astrophysical Phenomena · Physics 2020-07-08 Shota L. Yokoyama , Yutaka Ohira

With proper physical mechanisms of energy and momentum input from around the centre of a self-gravitating polytropic gas sphere, a central spherical "void" or "cavity" or "bubble" of very much less mass contents may emerge and then…

Solar and Stellar Astrophysics · Physics 2015-05-30 Yu-Qing Lou , Li-Le Wang

Collisionless shocks, that is shocks mediated by electromagnetic processes, are customary in space physics and in astrophysics. They are to be found in a great variety of objects and environments: magnetospheric and heliospheric shocks,…

The excitation of nonlinear wave structures in a dusty plasma caused by a moving external charge perturbation is examined in this work, which uses a 1-D flux corrected transport simulation. The plasma responds uniquely to different nature…

Plasma Physics · Physics 2023-08-15 Hitendra Sarkar , Madhurjya P. Bora

A rigorous theoretical investigation is made to study the characteristics of dust-acoustic (DA) waves (DAWs) in an electron depleted unmagnetized opposite polarity dusty plasma system that contains super-thermal ($\kappa$-distributed) ions,…

Plasma Physics · Physics 2019-09-04 R. K. Shikha , N. A. Chowdhury , A. Mannan , A. A. Mamun

We present numerical simulations of the adiabatic interaction of a shock with a clumpy region containing many individual clouds. Our work incorporates a sub-grid turbulence model which for the first time makes this investigation feasible.…

Astrophysics of Galaxies · Physics 2012-10-03 R. Alūzas , J. M. Pittard , T. W. Hartquist , S. A. E. G. Falle , R. Langton

Laser-induced breakdown has shown many potential applications in the various field of science and engineering. As the breakdown occurs in gas or aerosol, a rapid hydrodynamic expansion as shock (blast) wave initiated from the deposition…

Plasma Physics · Physics 2019-02-01 A. P. Singh , U. P. Padhi , R. Joarder

Dust formation in brown dwarf atmospheres is studied by utilising a model for driven turbulence in the mesoscopic scale regime. We apply a pseudo-spectral method where waves are created and superimposed within a limited wavenumber interval.…

Astrophysics · Physics 2007-05-23 Ch. Helling , R. Klein , P. Woitke , U. Nowak , E. Sedlmayr

We study the hydrodynamical behavior occurring in the turbulent interaction zone of a fast moving red supergiant star, where the circumstellar and interstellar material collide. In this wind-interstellar medium collision, the familiar bow…

Solar and Stellar Astrophysics · Physics 2011-05-31 Allard Jan van Marle , Zakaria Meliani , Rony Keppens , Leen Decin

We study the formation and dynamics of shock waves initiated by a repulsive potential in a superfluid unitary Fermi gas by using the order-parameter equation. In the theoretical framework, the regularization process of shock waves mediated…

Quantum Gases · Physics 2019-10-03 Wen Wen , Tiankun Shui , Yafei Shan , Changping Zhu

Self-sustained detonation waves in flake aluminum dust/air mixtures have been studied in a tube of diameter 199 mm and length 32.4 m. A pressure sensor array of 32 sensors mounted around certain circumferences of the tube was used to…

Fluid Dynamics · Physics 2017-02-08 Qingming Liu , Jinxiang Huang , Yunming Zhang , Shuzhuan Li

Waves and shocks traveling through the solar chromospheric plasma are influenced by its partial ionization and weak collisional coupling, and may become susceptible to multi-fluid effects, similar to interstellar shock waves. In this study,…

Solar and Stellar Astrophysics · Physics 2019-09-25 B. Popescu Braileanu , V. S. Lukin , E. Khomenko , A. de Vicente

When a subcluster merges with a larger galaxy cluster, a bow shock is driven ahead of the subcluster. At a later merger stage, this bow shock separates from the subcluster, becoming a "runaway" shock that propagates down the steep density…

High Energy Astrophysical Phenomena · Physics 2020-12-09 Congyao Zhang , Eugene Churazov , Irina Zhuravleva