Results 41 to 50 of about 37,281 (222)

Nonexistence of steady waves with negative vorticity

, 2020
We prove that no two-dimensional Stokes and solitary waves exist when the vorticity function is negative and the Bernoulli constant is greater than a certain critical value given explicitly.
Lokharu, Evgeniy
core   +1 more source

FROUDE VERSUS FROUDE IN FISH LADDER DESIGN [PDF]

Annals: Series on engineering sciences (Academy of Romanian Scientists), 2018
Hydrodynamic modelling is based on the similitude theory and the dimensional analysis. The complexity of flows in different geometric environments and fluids, requires the use of the similarity criteria in both the construction of a physical model and a ...
Carmen-Anca SAFTA, Cătălina Cristina PETICĂ, Lucian MÂNDREA   +2 more
doaj  

Study For The Effect of Manning Roughness on Froude number in open channel(subcritical flow) [PDF]

Engineering and Technology Journal, 2015
Knowing of flow resistance in channels is necessaryfor many purposes such as the estimation of stage-discharge relationship, and the evaluation of sediment transport from the hydraulic characteristics of the channel by means of transport formulas.All ...
Aqeel Al-Adili, Ali Sadiq A, Fadia Faroq
doaj   +1 more source

The Nonlinear Asymptotic Stage of the Rayleigh-Taylor Instability with Wide Bubbles and Narrowing Spikes

, 2013
The potential flow of an incompressible inviscid heavy fluid over a light one is considered. The integral version of the method of matched asymptotic expansion is applied to the construction of the solution over long intervals of time.
Babenko, Baker, Benjamin, Birkhoff, Davydov, Emmons, Garabedian, Gertsenshtein, Pyckteev, Vanden-Broeck, Vanden-Broeck   +10 more
core   +1 more source

Shock Waves: From Gas Dynamics to Granular Flows [PDF]

, 2019
This short article briefly discusses some aspects in shock wave studies in recent years, in particular on the difference between gas dynamics and granular flow problems.
Cui, Xinjun
core   +1 more source

Analisis Pengaruh Pengunaan Ulstein X-Bow pada Kapal Perintis Type 750 DWT Terhadap Nilai Hambatan dengan Metode Computational Fluid Dynamics

Rekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2022
ABSTRAK Hambatan merupakan aspek penting yang perlu diperhatikan dalam mendesain sebuah kapal. Salah satu upaya untuk mengurangi hambatan adalah memodifikasi bentuk haluan kapal dengan menggunakan Ulstein X-Bow.
Frans Simanjuntak, Samuel Samuel, Parlindungan Manik, Eko Sasmito Hadi, Willma Amiruddin   +4 more
doaj   +1 more source

Onset of fluidization in vertically shaken granular material

, 1999
When granular material is shaken vertically one observes convection, surface fluidization, spontaneous heap formation and other effects. There is a controversial discussion in literature whether there exists a threshold for the Froude number $\Gamma=A_0 ...
Clara Salueña, E. Clément, E. Clément, E. Clément, E.E. Ehrichs, F. Dinkelacker, F. Melo, F. Melo, G. Kuwabara, G.C. Barker, G.C. Barker, G.C. Barker, H.K. Pak, H.K. Pak, H.K. Pak, J. Duran, J. Duran, J. J. Moreau, J. Rajchenbach, J.A.C. Gallas, J.A.C. Gallas, J.A.C. Gallas, J.A.C. Gallas, J.B. Knight, J.B. Knight, K.M. Aoki, L. Rolf, L. Swinney, M. Faraday, N.V. Brilliantov, O. Zik, P. Evesque, P. Evesque, P. Evesque, P.B. Umbanhowar, S. Douady, S. Fauve, S. Luding, S. Luding, S. Warr, T. Metcalfe, T. Pöschel, Thomas Schwager, Thorsten Pöschel, W.A.M. Morgado, Y-h. Taguchi, Y-h. Taguchi, Y-h. Taguchi, Y-h. Taguchi   +48 more
core   +1 more source

Kelvin wake pattern at large Froude numbers [PDF]

Journal of Fluid Mechanics, 2013
AbstractGravity waves generated by an object moving at constant speed at the water surface form a specific pattern commonly known as the Kelvin wake. It was proved by Lord Kelvin that such a wake is delimited by a constant angle${\simeq }19. 4{7}^{\circ } $.
Darmon, Alexandre, Benzaquen, Michael, Raphaël, Elie   +2 more
openaire   +2 more sources

Experimental investigation of ventilated supercavitation behind cone-shaped with different angles and disk-shaped cavitators

International Journal of Naval Architecture and Ocean Engineering, 2022
This paper systematically investigates the effect of the cavitator shape on the characteristics of a ventilated supercavity. These characteristics include ventilation demand, pressure behavior, and deformation of the supercavity due to gravity under ...
Van-Duyen Pham, Ji-Woo Hong, Ali Kareem Hilo, Kiseong Kim, Byoung-Kwon Ahn   +4 more
doaj   +1 more source

Physical Modeling of Landward Scour Due to Tsunami Bore Overtopping Seawall

MATEC Web of Conferences, 2018
many of the post tsunami field surveys which conducted by researchers revealed that, the failure due to scour at the landward toe of the seawall due to overtopping of tsunami wave forms one of the important types of coastal defence structures failure and
Maqtan Raidan, Yusuf Badronnisa, Hamzah Saiful Bahri   +2 more
doaj   +1 more source