Results 61 to 70 of about 343 (174)

Numerical investigation of the effects of hydrofoil vibrations on the unsteady behavior of cavitation [PDF]

, 2021
In order to better understand the fluid-structure interaction (FSI) in hydraulic machines, this study aims to numerically investigate the flow around an oscillating hydrofoil with special attention on the effect of unsteadiness on leading edge cavitation.
Escaler Puigoriol, Francesc Xavier, Geng, Linlin, Chen, Jian, Torre Rodríguez, Óscar de la   +3 more
core   +1 more source

Backward swimming in elongated‐bodied abyssal demersal fishes: Synaphobranchidae, Macrouridae, and Ophidiidae

Journal of Fish Biology, Volume 107, Issue 1, Page 52-62, July 2025.
Abstract The deep‐sea demersal fish fauna is characterized by a prevalence of elongated‐body forms with long tapering tails. Using baited camera landers at depths of 4500–6300 m in the Pacific Ocean, we observed multiple instances of backward swimming using reverse undulation of the slender body in four species: the cutthroat eel Ilyophis robinsae ...
Imants G. Priede, Alan J. Jamieson
wiley   +1 more source

Cloud cavitation on an oscillating hydrofoil [PDF]

, 1994
Cloud cavitation, often formed by the breakdown of a sheet or vortex cavity, is believed to be responsible for much of the noise and erosion damage that occurs under cavitating conditions.
Reisman, G. E., Brennen, C. E., McKinney, E. A.   +2 more
core  

Lacustrine and fan‐delta sediments in syn‐rift lake basins

The Depositional Record, Volume 11, Issue 3, Page 857-892, June 2025.
A consistent model for the sequence framework and depositional pattern of asymmetric half‐grabens in syn‐rift lake basins bounded by active faults has been established, complementing existing models for marine rift successions. Syn‐rift lake basins are characterised by relatively small dimensions, steep slopes, poorly developed shoreline strata ...
Qianyou Wang, Yaohua Li, Hamed Sanei, Joe Gardner, Arka Rudra, James E. P. Utley, Richard H. Worden   +6 more
wiley   +1 more source

Multi‐Year Nutrient and Organic Carbon Mass Balance of a Young Boreal Hydroelectric Reservoir Complex

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 5, May 2025.
Abstract Reservoir construction can alter the transport and export of nutrients and organic matter by rivers to coastal areas. However, influences from construction within the first years after flooding are not well understood. Here we present a 9‐year study of La Romaine Hydroelectric Complex, composed of four cascading boreal reservoirs sequentially ...
Bianca M. Rodríguez‐Cardona, Pascal Bodmer, François Bilodeau, Alain Tremblay, Paul A. del Giorgio   +4 more
wiley   +1 more source

Development of a hydrofoil wake oscillator model based on a near-vortex strength for predicting vortex-induced vibration on a hydrofoil

International Journal of Naval Architecture and Ocean Engineering, 2023
Recently, the evaluation of vortex-induced vibration has emerged as a significantly important issue owing to the development of high-speed and lightweight ships and submarines. To derive an accurate vortex-induced vibration response, it is essential to consider the fluid-structure interaction. Moreover, it is necessary to evaluate the generation of the
Hyun-Gyu Choi, Suk-Yoon Hong, Jee-Hun Song, Won-Seok Jang, Woen-Sug Choi   +4 more
openaire   +2 more sources

A Tale of Evolution of the Central Indian Tectonic Zone (CITZ) With Glimpses on Pre‐Suture Plate Margin Depositional History

Geological Journal, Volume 60, Issue 2, Page 404-430, February 2025.
Present study explains the current understanding about the complex evolution of the CITZ. New zircon geochronological data from Mahakoshal Basin is used to document the pre‐suture history of the southern margin of Bundelkhand Craton where Mahakoshal Basin developed as a back‐arc basin and remained open even after 1700 Ma.
A. Sharma, P. P. Chakraborty, A. K. Pandey, K. Das   +3 more
wiley   +1 more source

Experimental Apparatus for the Study of Oscillating Hydrofoil Energy Generation

, 2021
Current riverine-based hydropower is expensive and damaging to the local ecosystem. Oscillating hydrofoil turbines, however, are estimated to be much cheaper and offer a lower impact on the local ecosystem.

core  

Wind Turbine Optimization by Blade Element Momentum Method and Particle Swarm Optimization Technique

Journal of Engineering, Volume 2025, Issue 1, 2025.
The aerodynamic efficiency of wind turbines is greatly influenced by the shape of their airfoils. In this study, four airfoils were optimized to enhance the performance of a small horizontal axis wind turbine. The optimization process involved adjusting the thickness and camber of the airfoils using the blade element momentum method and particle swarm ...
Hossein Seifi Davari, Ruxandra Mihaela Botez, Mohsen Seify Davari, Harun Chowdhury, Vipin Sharma   +4 more
wiley   +1 more source

Identification of the vortex in the main flow passage of a multiphase pump and the relationship with pressure fluctuation

Energy Science &Engineering, Volume 12, Issue 10, Page 4394-4413, October 2024.
This study develops a method of identifying vortices in the impeller channel of the multiphase pump, and reveals the intrinsic connection between the vortices and pressure fluctuations in the main flow passage. These findings offer some suggestions for eliminating the influence of vortices and enhancing the pressurizing capabilities of multiphase pumps.
Guangtai Shi, Manqi Tang, Wenjuan Lv, Xiaodong Peng, Hui Quan   +4 more
wiley   +1 more source