Publications related to Longitudinal wave

MATHICSE Technical Report : Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

A family of effective equations that capture the long time dispersive effects of wave propagation in heterogeneous media in an arbitrary large periodic spatial domain

\Omega \subset \mathbb{R}^d

over long time is proposed and analyzed. For a wave equatio ...

MATHICSE2016

Short-Wavelength Spin Waves in Yttrium Iron Garnet Micro-Channels on Silicon

Jean-Philippe Ansermet, Ping Che, Haiming Yu, Sa Tu, Francesco Antonio Vetrò, Yao Zhang

Yttrium iron garnet (YIG) has been widely used in spin wave studies thanks to its low Gilbert damping constant. However, most high-quality YIG films are grown on gadolinium gallium garnet (GGG) substrate, which makes it difficult to integrate with existing ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Simulation of bubble expansion and collapse in the vicinity of a free surface

Mohamed Farhat, Outi Supponen

The present paper focuses on the numerical simulation of the interaction of laser-generated bubbles with a free surface, including comparison of the results with instances from high-speed videos of the experiment. The Volume Of Fluid method was employed fo ...

Amer Inst Physics2016

Two-dimensional fluid-filled closed-cell cellular solid as an acoustic metamaterial with negative index

A concept for acoustic metamaterials consisting of a cellular medium with fluid-filled cells is fabricated and studied experimentally. In such a system, the fluid and solid structure explicitly interact, and elastic wave propagation is coupled to both phas ...

Amer Physical Soc2016

Design Considerations for Wearable Antennas

Anja Skrivervik, Zvonimir Sipus, Jovanche Trajkovikj, Benjamin Fuchs

With the development of generalized connectivity and the increased use of Body Area Networks, wearable antennas have become ubiquitous in the last decade. Their design presents a challenge, as they per definition are located at the interface between free s ...

Ieee2016

Selection of solitary waves in vertically falling liquid films

Nicolas Igor Jacques Kofman

Two-dimensional solitary waves at the surface of a film flow down a vertical plane are considered. When the system is subjected to inlet white noise, solitary waves are formed after an inception region and interact with each other. Using open-domain simula ...

Elsevier2016

Impulse waves generated by snow avalanches: Momentum and energy transfer to a water body

Christophe Ancey

When a snow avalanche enters a body of water, it creates an impulse wave whose effects may be catastrophic. Assessing the risk posed by such events requires estimates of the wave’s features. Empirical equations have been developed for this purpose in the c ...

Wiley-Blackwell2016

Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

Timothée Noé Pouchon, Assyr Abdulle

A family of effective equations that capture the long time dispersive effects of wave propagation in heterogeneous media in an arbitrary large periodic spatial domain Omega subset of R-d is proposed and analyzed. For a wave equation with highly oscillatory ...

World Scientific Publ Co Pte Ltd2016

Fluid-structure interaction during hydraulic transients in pressurized pipes: experimental and numerical analyses

David Ferràs Segura

Pressurized pipes may be endangered by failure due to excessive hydraulic transients, the so-called waterhammer. These pressure waves are strongly affected by fluid-structure interaction (FSI), unsteady skin friction, dry friction or pipe-wall viscoelastic ...

EPFL-LCH2016

Local wave speed and bulk flow viscosity in Francis turbines at part load operation

François Avellan, Christophe Nicolet, Arthur Tristan Favrel, Christian Landry, Andres Müller

The operation of Francis turbines at off-design conditions may cause the development of a cavitation vortex rope in the draft tube cone, acting as a pressure excitation source. The interactions between this excitation source and the hydraulic system at the ...

Taylor & Francis Ltd2016

Longitudinal wave

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MATHICSE Technical Report : Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

Short-Wavelength Spin Waves in Yttrium Iron Garnet Micro-Channels on Silicon

Simulation of bubble expansion and collapse in the vicinity of a free surface

Two-dimensional fluid-filled closed-cell cellular solid as an acoustic metamaterial with negative index

Design Considerations for Wearable Antennas

Selection of solitary waves in vertically falling liquid films

Impulse waves generated by snow avalanches: Momentum and energy transfer to a water body

Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

Fluid-structure interaction during hydraulic transients in pressurized pipes: experimental and numerical analyses

Local wave speed and bulk flow viscosity in Francis turbines at part load operation

Two-dimensional fluid-filled closed-cell cellular solid as an acoustic metamaterial with negative index

Local wave speed and bulk flow viscosity in Francis turbines at part load operation

MATHICSE Technical Report : Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

Simulation of bubble expansion and collapse in the vicinity of a free surface

Design Considerations for Wearable Antennas

Selection of solitary waves in vertically falling liquid films

Impulse waves generated by snow avalanches: Momentum and energy transfer to a water body

Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization

Fluid-structure interaction during hydraulic transients in pressurized pipes: experimental and numerical analyses

Short-Wavelength Spin Waves in Yttrium Iron Garnet Micro-Channels on Silicon