The magic carpet: an arbitrary spectrum wave maker for internal waves

Thomas E. Dobra; Andrew G. W. Lawrie; Stuart B. Dalziel

doi:10.1007/s00348-019-2811-5

The magic carpet: an arbitrary spectrum wave maker for internal waves

Thomas E. Dobra, Andrew G. W. Lawrie^*, Stuart B. Dalziel

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

6 Citations (Scopus)

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Abstract

We present a novel apparatus for generating internal waves of arbitrary size and shape, including both phase-locked and propagating waves. It is an actively driven, flexible “magic carpet” in the base of a tank. Our wave maker is computer-controlled to enable easy configuration. The actuation of a smooth, flexible surface produces clean waveforms with a predictable spectrum, for which we derive a theoretical model. We demonstrate the versatility of our wave maker through an experimental study of linear and nonlinear, isolated, and combined internal waves, including some that are sufficiently nonlinear to break remote from their source.

Original language	English
Article number	172
Number of pages	14
Journal	Experiments in Fluids
Volume	60
Issue number	11
Early online date	29 Oct 2019
DOIs	https://doi.org/10.1007/s00348-019-2811-5
Publication status	Published - 1 Nov 2019

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N2 - We present a novel apparatus for generating internal waves of arbitrary size and shape, including both phase-locked and propagating waves. It is an actively driven, flexible “magic carpet” in the base of a tank. Our wave maker is computer-controlled to enable easy configuration. The actuation of a smooth, flexible surface produces clean waveforms with a predictable spectrum, for which we derive a theoretical model. We demonstrate the versatility of our wave maker through an experimental study of linear and nonlinear, isolated, and combined internal waves, including some that are sufficiently nonlinear to break remote from their source.

AB - We present a novel apparatus for generating internal waves of arbitrary size and shape, including both phase-locked and propagating waves. It is an actively driven, flexible “magic carpet” in the base of a tank. Our wave maker is computer-controlled to enable easy configuration. The actuation of a smooth, flexible surface produces clean waveforms with a predictable spectrum, for which we derive a theoretical model. We demonstrate the versatility of our wave maker through an experimental study of linear and nonlinear, isolated, and combined internal waves, including some that are sufficiently nonlinear to break remote from their source.

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The magic carpet: an arbitrary spectrum wave maker for internal waves

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Dr Andrew G W Lawrie

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The magic carpet: an arbitrary spectrum wave maker for internal waves

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