Results 91 to 100 of about 628,643 (214)
Enhanced Locomotion of Shape Morphing Microrobots by Surface Coating
Advanced Intelligent Systems, 2021 Mobile microrobots with shape morphing capability show great advantages for conducting tasks in complex environments. Combination of magnetically driven locomotion and stimuli‐responsive shape morphing is an effective strategy to realize these ...
Suchun Ji +4 more
doaj +1 more source
Types of quantum turbulence [PDF]
arXiv, 2023 We collect and describe the observed geometrical and dynamical properties of turbulence in quantum fluids, particularly superfluid helium and atomic condensates for which more information about turbulence is available. Considering the spectral features, the temporal decay, and the comparison with relevant turbulent classical flows, we identify three ...
arxiv
Field Theory and the Phenomenon of Turbulence [PDF]
arXiv, 1995 We study the phenomenon of turbulence from the point of view of statistical physics. We discuss what makes the turbulent states different from the thermodynamic equilibrium and give the turbulent analog of the partition function. Then, using the soluble theory of turbulence of waves as an example, we construct the turbulent action and show how one can ...
arxiv
Transition in hypersonic boundary layers
AIP Advances, 2015 Transition and turbulence production in a hypersonic boundary layer is investigated in a Mach 6 wind tunnel using Rayleigh-scattering visualization, fast-response pressure measurements, and particle image velocimetry.
Chuanhong Zhang +7 more
doaj +1 more source
Bifurcation in electrostatic resistive drift wave turbulence
, 2007 The Hasegawa-Wakatani equations, coupling plasma density and electrostatic potential through an approximation to the physics of parallel electron motions, are a simple model that describes resistive drift wave turbulence. We present numerical analyses of
Kuo H.-L. +5 more
core +1 more source
On the turbulent energy cascade in anisotropic magnetohydrodynamic turbulence [PDF]
EPL (Europhysics Letters), 2009 The problem of the occurrence of an energy cascade for Alfv nic turbulence in solar wind plasmas was hystorically addressed by using phenomenological arguments based to the weakness of nonlinear interactions and the anisotropy of the cascade in wave vectors space.
Luca Sorriso-Valvo +3 more
openaire +6 more sources
Attitude Control of Aircraft Using Only Synthetic Jet Actuators When Stall Occurs
IEEE Access, 2018 This paper proposes a novel active flow control method for a special aircraft, that using only synthetic jet actuators (SJAs) to achieve pitch-roll-yaw attitude control at a high angle of attack when the stall occurs.
Chunzhi Li +2 more
doaj +1 more source
The Astrophysical Journal, 2001 We examine the dynamics of turbulent reconnection in 2D and 3D reduced MHD by calculating the effective dissipation due to coupling between small-scale fluctuations and large-scale magnetic fields. Sweet-Parker type balance relations are then used to calculate the global reconnection rate. Two approaches are employed -- quasi-linear closure and an eddy-
Kim, Eun-jin, Diamond, PH
openaire +4 more sources
, 2023 The exploration of a two-dimensional wind-driven ocean model with no-slip boundaries reveals the existence of a turbulent asymptotic regime where energy dissipation becomes independent of fluid viscosity. This asymptotic flow represents an out-of-equilibrium state, characterized by a vigorous two-dimensional vortex gas superimposed onto a western ...
Miller, Lennard +2 more
openaire +3 more sources