scholarly journals Recovering the Water-Wave Profile from Pressure Measurements

2012 ◽  
Vol 72 (3) ◽  
pp. 897-918 ◽  
Author(s):  
K. L. Oliveras ◽  
V. Vasan ◽  
B. Deconinck ◽  
D. Henderson
Keyword(s):  
Water Wave ◽  
Wave Profile ◽  
Pressure Measurements

On the recovery of solitary wave profiles from pressure measurements

2012 ◽  
Vol 699 ◽  
pp. 376-384 ◽  
Author(s):  
A. Constantin
Keyword(s):  
Solitary Wave ◽  
Explicit Formula ◽  
Large Amplitude ◽  
Water Wave ◽  
Pressure Measurements ◽  
Pressure Data ◽  
Governing Equations ◽  
Wave Profiles

AbstractWe derive an explicit formula that permits the recovery of the profile of an irrotational solitary water wave from pressure data measured at the flat bed of the fluid domain. The formula is valid for the governing equations and applies to waves of small and large amplitude.

scholarly journals New exact relations for easy recovery of steady wave profiles from bottom pressure measurements

2013 ◽  
Vol 726 ◽  
pp. 547-558 ◽  
Author(s):  
Didier Clamond
Keyword(s):  
Free Surface ◽  
Wave Profile ◽  
Pressure Measurements ◽  
Bottom Pressure ◽  
Reconstruction Procedure ◽  
Free Surface Wave ◽  
Wave Profiles ◽  
Fixed Point Iterations ◽  
Exact Relations

AbstractThis paper is about the determination of a free surface wave profile from a given pressure distribution at the bottom. For a two-dimensional irrotational steady surface water wave propagating over a flat horizontal bed, this problem is solved analytically in an implicit form. Explicit solutions can be easily obtained numerically via fixed point iterations, whose convergence is outlined mathematically and numerically. This new surface reconstruction procedure does not involve the resolution of a differential or an integral equation, i.e. the surface is given by algebraic local relations. Thus, this formulation permits the free surface recovery in a simpler and more efficient way than previous methods.

scholarly journals Water-wave profiles from pressure measurements: Extensions

2017 ◽  
Vol 68 ◽  
pp. 175-180 ◽  
Author(s):  
Vishal Vasan ◽  
Katie L. Oliveras
Keyword(s):  
Water Wave ◽  
Pressure Measurements ◽  
Wave Profiles

Geometric properties of deep-water breaking waves

1989 ◽  
Vol 209 ◽  
pp. 405-433 ◽  
Author(s):  
P. Bonmarin
Keyword(s):  
Deep Water ◽  
Water Wave ◽  
Air Entrainment ◽  
Breaking Waves ◽  
Wave Profile ◽  
Shape Evolution ◽  
Visualization Technique ◽  
Geometric Properties ◽  
Time Space ◽  
Entrainment Process

The time-space evolution of a steep water wave reaching the breaking stage is observed by means of a visualization technique. In particular, the asymmetry of the wave profile in the near-breaking region is displayed. Measurements at breaking onset on a sample of breaking waves show a relation between the rate of asymmetry growth and the breaker type. The shape evolution of a plunging crest after breaking has started, and the related splash-up phenomenon and its part in the air-entrainment process are also observed.

A method to recover water-wave profiles from pressure measurements

Wave Motion ◽  
2017 ◽  
Vol 75 ◽  
pp. 25-35 ◽  
Author(s):  
Vishal Vasan ◽  
Katie Oliveras ◽  
Diane Henderson ◽  
Bernard Deconinck
Keyword(s):  
Water Wave ◽  
Pressure Measurements ◽  
Wave Profiles

scholarly journals Recovery of steady periodic wave profiles from pressure measurements at the bed

2013 ◽  
Vol 714 ◽  
pp. 463-475 ◽  
Author(s):  
D. Clamond ◽  
A. Constantin
Keyword(s):  
Water Waves ◽  
Water Wave ◽  
Small Amplitude ◽  
Periodic Wave ◽  
Classical Solutions ◽  
Periodic Waves ◽  
Pressure Measurements ◽  
Governing Equations ◽  
Shallow Water Waves ◽  
Wave Profiles

AbstractWe derive an equation relating the pressure at the flat bed and the profile of an irrotational steady water wave, valid for all classical solutions of the governing equations for water waves. This permits the recovery of the surface wave from pressure measurements at the bed. Although we focus on periodic waves, the extension to solitary waves is straightforward. We illustrate the usefulness of the equation beyond the realm of linear theory by investigating the regime of shallow-water waves of small amplitude and by presenting a numerical example.

scholarly journals Pressure Measurement on the Surface of a Rigid Cylindrical Body During Slamming Wave Impact

2011 ◽  
Author(s):  
Diederik Van Nuffel ◽  
Sridhar Vepa ◽  
Ives De Baere ◽  
Joris Degrieck ◽  
Julien De Rouck ◽  
...  
Keyword(s):  
Experimental Data ◽  
Pressure Measurement ◽  
Water Wave ◽  
Cylindrical Body ◽  
Pressure Measurements ◽  
Large Scatter ◽  
Crucial Importance ◽  
Wave Impact ◽  
Wave Slamming ◽  
Drop Tests

Among all kinds of loads that floating and fixed marine constructions experience, water wave slamming can be considered as one of the most critical. To prevent naval constructions from failing due to slamming impact, slamming loads should be carefully investigated. Besides analytical and numerical calculations, experimental data is of crucial importance. Slamming loads can be measured by performing pressure measurements on the surface of the object during impact. Previous publications showed that precise and correct measurements are very difficult to perform, especially for slamming events with small deadrise angles. Large scatter mostly characterizes these measurements. This research focuses on improving the accuracy and reproducibility of the pressure recordings. Therefore, slamming drop tests are performed on a rigid cylindrical body. Most attention is paid to the bottom of the cylinder where the deadrise angle is 0°.

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