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On the inviscid energetics of Mack’s first mode instability
AbstractHigh-speed boundary layer transition is dominated by the modal, exponential amplification of the oblique Mack’s first mode waves in...
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Attenuation of hypersonic second-mode boundary-layer instability with an ultrasonically absorptive silicon-carbide foam
Unsteady surface pressure measurements have been carried out on a flat-plate test article in the Air Force Research Laboratory’s Mach-6 Ludwieg Tube...
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Comparative Analysis of Microservice and Serverless Technology Building Automatic Design Systems for Calculating the Instability of the Static Mode of Nonlinear Electronic Circuits
AbstractMethods for constructing distributed automation systems for circuit design to calculate the instability of the coordinates of the operating...
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Parametric Instability of an X-mode laser off a lower hybrid wave
A high-frequency X-mode laser is susceptible to parametric decay into a lower hybrid wave and a sideband X-mode laser in magnetized plasma. The...
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Multi-Mode Load Control
In IMCS, the system degree of freedom (DOF) in the hardware increases from one to two. It first benefits the flexible configuration of individual...
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Large Displacements and Instability: Buckling Versus Nonlinear Instability
We here present the geometrically nonlinear approach to structural analysis and corresponding instability problems that can arise within the...
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Mode-localized accelerometer in the nonlinear Duffing regime with 75 ng bias instability and 95 ng/√Hz noise floor
Mode-localized sensors have attracted attention because of their high parametric sensitivity and first-order common-mode rejection to temperature...
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Hypersonic boundary-layer instability characterization and transition downstream of distributed roughness
The ablation of thermal protection systems in hypersonic vehicles would generate randomly distributed surface roughness, which prominently influences...
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Size-dependent buckling and instability of a porous microplate under electrostatic fields and Casimir forces
This paper investigates the instability and buckling characteristics of a porous microplate under the influence of electrostatic fields, taking into...
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Flow-Excited Instability in Thin Structure Aeroelasticity
This chapter examines the coupled dynamics of three-dimensional flexible thin structures with membrane-like (of small bending rigidity) components at...
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Experimental and numerical study on motion instability of modular floating structures
The parametric resonance, found in a single floating body, discloses that the kinetic energy could be transferred from heave mode to roll mode and...
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Analytical instability theory of a liquid jet under a thermal field
Linear temporal instability analysis of a liquid jet emerging into a stationary gas environment under a radial thermal field is carried out in this...
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On the Parabolic Instability Region for Kuo Problem
We consider Kuo problem which deals with incompressible, inviscid, parallel zonal flows. For this Kuo problem, we derived a parabolic instability...
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Critical thresholds for mode-coupling instability in viscoelastic sliding contacts
Mode-coupling instabilities are known to trigger self-excited vibrations in sliding contacts. Here, the conditions for mode-coupling (or “flutter”)...
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On the effect of characterised initial conditions on the evolution of the mixing induced by the Richtmyer–Meshkov instability
Time-resolved schlieren photography was used to visualise mixing zones induced by the Richtmyer–Meshkov instability. These were initiated with four...
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Aeroelastic Mode Decomposition
In this chapter, we present a global Fourier mode decomposition framework for unsteady fluid-structure interaction. We apply the framework to isolate...
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Parametric Instability Control of Porous Functionally Graded Beam using Piezoelectric Actuators
This work presents the active control of parametrically excited porous functionally graded (FG) geometrically nonlinear beam integrated with...
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Saffman–Taylor instability in eccentric cylinders at gaseous cavitation
A flow of silicon fluid in the gap between eccentric cylinders was studied experimentally. The condition of gaseous cavitation inception during the...
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Instability
The first instability mechanism is applied to the plane parallel channel flow. We establish the well known Orr-Sommerfeld equation which is solved by...
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Linear Instability Analysis of Natural Convection in a Heated Vertical Porous Annulus
The stability analysis of non-isothermal annular parallel flow through a highly permeable porous medium is studied. The flow is governed by the...