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[PDF] Top 20 Stability of boundary layers in magnetohydrodynamics

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Stability of boundary layers in magnetohydrodynamics

Stability of boundary layers in magnetohydrodynamics

... instability of the Prandtl equation is to be found in magnetohydrodynamics (MHD) as ...flow of fluids that are subjects to the effects of the electromagnetic field, such as the Earth’s ... Voir le document complet

96

Structure of high Reynolds number boundary layers over cube canopies

Structure of high Reynolds number boundary layers over cube canopies

... conducted in streamwise- spanwise planes (figure 1a) using two 2048 × 2048 pixel cameras FlowSense, positioned at forward scattering angles α = {20 ◦ , 53 ◦ } and associated with 60 mm and 105 mm Nikkor lenses (at ... Voir le document complet

33

Geometric Optics and Boundary Layers for Nonlinear Schrödinger Equations

Geometric Optics and Boundary Layers for Nonlinear Schrödinger Equations

... emphasized in [2], in some cases, the global existence of smooth solutions is already known for ...example, in the quintic case, σ = 2, global existence is known for d ≤ 3 (see [6] for the ... Voir le document complet

44

Transition prediction for oblique breakdown in supersonic boundary layers with uncertain disturbance spectrum

Transition prediction for oblique breakdown in supersonic boundary layers with uncertain disturbance spectrum

... order of the interpolating polynomials for the input parameters and the number of ...variance of the output pdf for the N − f actor are considered to evaluate the error and to define the ... Voir le document complet

11

Scale interactions and anisotropy in stable boundary layers

Scale interactions and anisotropy in stable boundary layers

... time of record (1 minute),V is the record-averaged wind speed,T is the record-averaged potential temperature derived from the sonic anemometer measurements, z 1 = 1 m and z 2 = 10 m, ∆z is the difference in ... Voir le document complet

23

Exponential stability of a class of PDE's with dynamic boundary control.

Exponential stability of a class of PDE's with dynamic boundary control.

... The trapped DNA bundle is approximated by a mass spring system attached at the tip of the tweezer. The arm is actuated by using electrostatic forces generated by a comb drive actuator attached to a suspension ... Voir le document complet

7

Boundary layers and emitted excitations in nonlinear Schrödinger superflow past a disk

Boundary layers and emitted excitations in nonlinear Schrödinger superflow past a disk

... The stability and dynamics of nonlinear Schr¨ odinger superflows past a two- dimensional disk are investigated using a specially adapted pseudo-spectral method based on mapped Chebychev ...imposition ... Voir le document complet

34

Optimal perturbations in swept leading edge boundary layers.

Optimal perturbations in swept leading edge boundary layers.

... assessment of the current status of laminar flow control technology in an aeronautical context, the reader is referred to the comprehensive review of Joslin (1998) and the book of ... Voir le document complet

144

Dense-gas effects on compressible boundary-layer stability

Dense-gas effects on compressible boundary-layer stability

... variation in dense-gas boundary layers has some similarities with perfect-gas boundary layers with strong wall ...suppression of the generalized inflection point has been ... Voir le document complet

42

Nonlinear boundary layers for rotating fluids

Nonlinear boundary layers for rotating fluids

... definition of v + , while the condition F (ψ, φ) = 0 means that the normal component of the stress tensor Σ(v, p) is also continuous at y 3 = M ...part of the work is the analysis of system ... Voir le document complet

44

Weakly nonlinear surface waves in magnetohydrodynamics

Weakly nonlinear surface waves in magnetohydrodynamics

... local in time solvability of ( 1.3 ) in Sobolev spaces has been recently proved by Sun, Wang and Zhang [ SWZ18 ] by a clever reduction to the free boundary in the spirit of water ... Voir le document complet

154

Drag modulation in turbulent boundary layers subject to different bubble injection strategies

Drag modulation in turbulent boundary layers subject to different bubble injection strategies

... characterization of the agita- tion generated by bubbles rising at high reynolds ...characteristic of bubbly flow with micro bubbles and practical applications of micro ...bubble. In: 42nd ... Voir le document complet

16

Stability of finite difference schemes for hyperbolic initial boundary value problems: numerical boundary layers

Stability of finite difference schemes for hyperbolic initial boundary value problems: numerical boundary layers

... Dirichlet boundary conditions and derive semigroup estimates for a class of numerical schemes with arbitrarily many time ...Dirichlet boundary conditions are twofold. First, these are the only ... Voir le document complet

24

Characterizations of tropospheric turbulence and stability layers from aircraft observations

Characterizations of tropospheric turbulence and stability layers from aircraft observations

... statistics of the vertical gradient quantities. Figures 4e and 4f show the PDFs of log (dq/dz) 2 for z = 10 m (solid), 100 m (dashed), and 1000 m (dash-dotted) in the free troposphere and ... Voir le document complet

11

Control in fluid mechanics and boundary layers

Control in fluid mechanics and boundary layers

... Indeed, in finite dimension, it is known that if ˙ y = F (y) + Bu where F is quadratic is controllable, then ˙ y = F (y) + Ay + Bu is controllable too (see [57 , Theorem ...system. In our case, we expect to ... Voir le document complet

121

Drag modulation in turbulent boundary layers subject to different bubble injection strategies

Drag modulation in turbulent boundary layers subject to different bubble injection strategies

... bubbles of different sizes to achieve drag ...seeding of the bubbles, second is related to the density variation which reduces the turbulence momentum transfer and third is regulated by the correlation ... Voir le document complet

17

Boundary layers, Rellich estimates and extrapolation of solvability for elliptic systems

Boundary layers, Rellich estimates and extrapolation of solvability for elliptic systems

... study of such problems, gen- eralizing domains or ...the boundary, one instead looks at equations with measurable coefficients and considers two types of domains, either the upper-half space as a ... Voir le document complet

41

Large Eddy Simulation of Highly Compressible Jets with Tripped Boundary Layers

Large Eddy Simulation of Highly Compressible Jets with Tripped Boundary Layers

... ] of the unsteady compressible Navier–Stokes ...end of each time step, an artificial dissipation [ 1 ] is applied in order to remove grid-to-grid oscillations and to avoid Gibbs oscillations near ... Voir le document complet

8

Blood flow simulation and magnetohydrodynamics effects in MRI

Blood flow simulation and magnetohydrodynamics effects in MRI

... Some MHD effects of the magnetic field on blood flows were already discussed in the liter- ature in a stationary case in a 2D configuration. We believe that the geometry and the time dependence ... Voir le document complet

2

Effect of pH on the stability of passivating gel layers formed on International Simple Glass

Effect of pH on the stability of passivating gel layers formed on International Simple Glass

... effect of aqueous silica on the glass dissolution is negligible at pH 90 °C ≤ ...thickness of altered glass is ...conducted in a Si-rich solution (Figure ...factor of ≈ 35 at pH 90 °C = ... Voir le document complet

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