Closure to “Transverse Forces on Vertical Cylinders in Waves”

1977 ◽  
Vol 103 (2) ◽  
pp. 295-296
Author(s):  
Michael de St. Q. Isaacson ◽  
David J. Maull
Keyword(s):  
Vertical Cylinders

Natural convection in an annulus between two rotating vertical cylinders

2001 ◽  
Vol 147 (1-4) ◽  
pp. 173-196 ◽  
Author(s):  
M. Venkatachalappa ◽  
M. Sankar ◽  
A. A. Natarajan
Keyword(s):  
Natural Convection ◽  
Vertical Cylinders

scholarly journals A Well-balanced Finite Volume Scheme for Shallow Water Equations with Porosity: Application to Modelling Flow through Rigid Vegetation

2018 ◽  
Vol 40 ◽  
pp. 05032
Author(s):  
Minh H. Le ◽  
Virgile Dubos ◽  
Marina Oukacine ◽  
Nicole Goutal
Keyword(s):  
Shallow Water ◽  
Finite Volume ◽  
Shallow Water Equations ◽  
Simple Wave ◽  
Water Model ◽  
Strong Interactions ◽  
Finite Volume Scheme ◽  
Volume Scheme ◽  
Rigid Vegetation ◽  
Vertical Cylinders

Strong interactions exist between flow dynamics and vegetation in open-channel. Depth-averaged shallow water equations can be used for such a study. However, explicit representation of vegetation can lead to very high resolution of the mesh since the vegetation is often modelled as vertical cylinders. Our work aims to study the ability of a single porosity-based shallow water model for these applications. More attention on flux and source terms discretizations are required in order to archive the well-balancing and shock capturing properties. We present a new Godunov-type finite volume scheme based on a simple-wave approximation and compare it with some other methods in the literature. A first application with experimental data was performed.

Wave Diffraction on Arrays of Vertical Truncated Cylindrical Bodies

2018 ◽  
Author(s):  
Spyros A. Mavrakos ◽  
Ioannis K. Chatjigeorgiou ◽  
Dimitrios N. Konispoliatis
Keyword(s):  
Wave Energy ◽  
Power Transmission ◽  
Wave Loads ◽  
Free Surface Elevation ◽  
Resonant Modes ◽  
Diffracted Waves ◽  
The Individual ◽  
Offshore Wave ◽  
Vertical Cylinders ◽  
Exciting Wave

Offshore Wave Energy Converter (WEC) farms are widely deployed as regards the individual isolated devices aiming at maximum wave energy absorption and facilitating installation and power transmission. This paper summarizes the theory behind the hydrodynamic interactions of diffracted waves by a large array of vertical cylinders. The latter exhibits some remarkable hydrodynamic interference effects — near resonant modes — in waves causing large loads in adjacent elements of the array. Numerical results concerning the exciting wave loads for a variety of different array configurations of truncated and bottomless cylinders are presented and the free surface elevation around the elements of the array is evaluated pointing out the near trapped modes.

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