Results 31 to 40 of about 55,050 (125)

Quasiperiodic waves at the onset of zero Prandtl number convection with rotation [PDF]

, 2001
We show the possibility of quasiperiodic waves at the onset of thermal convection in a thin horizontal layer of slowly rotating zero-Prandtl number Boussinesq fluid confined between stress-free conducting boundaries.
A. Chiffaudel, Alaka Das, D. Ruelle, D. Ruelle, E. A. Spiegel, E. N. Lorenz, F. H. Busse, F. H. Busse, G. Ahlers, G. Ahlers, G. Küppers, G. Veronis, J. B. McLaughlin, J. Friedrich, J. Liu, J. N. Koster, J. N. Koster, J. P. Gollub, K. Kumar, Krishna Kumar, M. C. Cross, M. Dubois, M. R. Proctor, O. Thual, P. L. Sulem, R. H. Kraichnan, R. J. Donnelly, R. M. Clever, S. Fauve, Sanjay Chaudhuri, V. Croquette, V. Croquette, Y. C. Hu, Y. Hu, Y.-S. Lee, Y.-S. Lee   +35 more
core   +2 more sources

How do recollimation-induced instabilities shape the propagation of hydrodynamic relativistic jets?

Astronomy & Astrophysics
Context. Recollimation is a phenomenon of particular importance in the dynamical evolution of jets and in the emission of high-energy radiation. Additionally, the full comprehension of this phenomenon provides insights into fundamental properties of jets
Costa A., Bodo G., Tavecchio F., Rossi P., Coppi P., Sciaccaluga A., Boula S.   +6 more
doaj   +1 more source

Attempted density blowup in a freely cooling dilute granular gas: hydrodynamics versus molecular dynamics

, 2008
It has been recently shown (Fouxon et al. 2007) that, in the framework of ideal granular hydrodynamics (IGHD), an initially smooth hydrodynamic flow of a granular gas can produce an infinite gas density in a finite time. Exact solutions that exhibit this
Andrea Puglisi, Baruch Meerson, G. B. Whitham, I. Fouxon, Itzhak Fouxon, J. T. Jenkins, Michael Assaf, N. V. Brilliantov, T. Pöschel, Y. Bromberg, Ya. B. Zel’dovich   +10 more
core   +1 more source

Role of stable modes in driven shear-flow turbulence

, 2018
A linearly unstable, sinusoidal $E \times B$ shear flow is examined in the gyrokinetic framework in both the linear and nonlinear regimes. In the linear regime, it is shown that the eigenmode spectrum is nearly identical to hydrodynamic shear flows, with
Fraser, A. E., Pueschel, M. J., Terry, P. W., Zweibel, E. G.   +3 more
core   +1 more source

Collective chemotactic dynamics in the presence of self-generated fluid flows

, 2012
In micro-swimmer suspensions locomotion necessarily generates fluid motion, and it is known that such flows can lead to collective behavior from unbiased swimming. We examine the complementary problem of how chemotaxis is affected by self-generated flows.
Enkeleida Lushi, H. C. Berg, M. J. Schnitzer, Michael J. Shelley, Raymond E. Goldstein   +4 more
core   +2 more sources

Numerical study of hydrodynamic performance of a heaving buoy wave energy converter in regular waves using the CEL method

Results in Engineering
Wave energy converters (WECs) operating in ocean environments are subject to highly unsteady hydrodynamic loads that significantly influence their performance and structural stability.
Mohammed Karkab, Abdellatif Ghennioui, Khalid Bouziane, Omar Jellouli, Mostapha Tarfaoui   +4 more
doaj   +1 more source

$$\beta$$ -Fractional $$(n+1)$$ -dimensional generalized KP model: nonlinear dynamical behaviors, analytical wave structures, bifurcation, and sensitivity analysis

Scientific Reports
This study introduces an integrable generalization of the Kadomtsev–Petviashvili model in arbitrary spatial dimensions. The Kadomtsev–Petviashvili equation serves as a fundamental framework in describing a wide range of physical phenomena, including ...
Ulviye Demirbilek, Ali Danladi, Arzu Akbulut, Salah Boulaaras, Karim K. Ahmed   +4 more
doaj   +1 more source

Transverse Patterns in Nonlinear Optical Resonators

, 2003
The book is devoted to the formation and dynamics of localized structures (vortices, solitons) and extended patterns (stripes, hexagons, tilted waves) in nonlinear optical resonators such as lasers, optical parametric oscillators, and photorefractive ...
Sanchez-Morcillo, Victor J., Staliunas, Kestutis   +1 more
core   +1 more source

Time-Reversal of Nonlinear Waves - Applicability and Limitations [PDF]

, 2016
Time-reversal (TR) refocusing of waves is one of fundamental principles in wave physics. Using the TR approach, "Time-reversal mirrors" can physically create a time-reversed wave that exactly refocus back, in space and time, to its original source ...
Chabchoub, A., Ducrozet, G., Fink, M.
core   +5 more sources

A coupled Nonlinear Shallow Water Equations — Exner approach for wave–sediment interplay in hybrid coastal defense

Applied Ocean Research
Coastal erosion, increasingly driven by human activities and climate change, poses escalating threats to shoreline stability and nearby communities.
Hany Qoshirotur Rif’atin, Ikha Magdalena, Muhammad Syahril Badri Kusuma, Alamsyah Kurniawan   +3 more
doaj   +1 more source