Results 61 to 70 of about 79,399 (174)

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

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

A Soft Robotic Morphing Wing for Unmanned Underwater Vehicles

Advanced Intelligent Systems, Volume 6, Issue 6, June 2024.
This study presents the design and hydrodynamic characterization of a soft wing for implementation on underwater gliders. Through hydraulic actuation, the soft wing deforms and adjusts its lift‐to‐drag ratio, which ranges from −70% to +10% with respect to a rigid wing.
Andrea Giordano, Liam Achenbach, Daniel Lenggenhager, Fabian Wiesemüller, Roger Vonbank, Claudio Mucignat, André Tristany Farinha, Pham Huy Nguyen, Robert Katzschmann, Sophie F Armanini, Ivan Lunati, Sukho Song, Mirko Kovač   +12 more
wiley   +1 more source

2D Oscillating Hydrofoil

, 2007
This paper presents a validation of numerical simulations in case of a forced oscillating hydrofoil. As a representative case study for vibrating blade in hydraulics machines, a 2D NACA 0009 oscillating hydrofoil is considered. Pressure coefficients from experiments and numerical simulations are presented.
Münch, Cecile, Ausoni, Philippe, Farhat, Mohamed, Avellan, Francois   +3 more
openaire   +1 more source

2D Oscillating Hydrofoil [PDF]

This paper presents a validation of numerical simulations in case of a forced oscillating hydrofoil. As a representative case study for vibrating blade in hydraulics machines, a 2D NACA 0009 oscillating hydrofoil is considered. Pressure coefficients from
Avellan, Francois, Münch, Cecile, Farhat, Mohamed, Ausoni, Philippe   +3 more
core   +1 more source

Observations of Oscillating Cavitation on a Flat Plate Hydrofoil [PDF]

, 2001
An experimental investigation was made to clarify the characteristics of oscillating cavitation on a flat plate hydrofoil in a water tunnel. Dynamic the behavior of oscillating cavitation is discussed from the unsteady pressure measurements at the ...
Sato, K., Tanada, M., Tsujimoto, Y., Monden, S.   +3 more
core  

Computational Study of Oscillating Hydrofoil with Different Plunging/Pitching Frequency

Journal of Aero Aqua Bio-mechanisms, 2010
A numerical investigation of an oscillating hydrofoil with unequal plunging/pitching frequency is conducted by solving unsteady Navier-Stokes equations. Studies are performed for the impact of different frequency ratio on the wake structure and propulsion parameters over a wide range of plunging amplitude, pitching amplitude and oscillating reduced ...
Xiao, Qing, Liao, Wei
openaire   +2 more sources

Numerical investigations of fluid structure coupling: oscillating hydrofoil [PDF]

This paper presents an investigation of the hydro elastic behavior of vibrating blades in hydraulic machines, which is of strong interest for turbo machinery applications.
Kueny, Jean-Louis, Avellan, Francois, Braun, Olivier, Münch, Cecile   +3 more
core   +1 more source

Research on the Influence of Hydrofoil Propulsive Parameters on Propulsion Efficiency

Journal of Marine Science and Engineering
Oscillating hydrofoils can be used to simplify the study of the swinging caudal fin propulsive mode of fish, where the motion parameters have a direct impact on the hydrodynamic performance and propulsive efficiency. In this study, numerical calculations
Meng Cui, Zhihao Liu, Fei Lu, Jiaye Gong, Zheng Fu   +4 more
doaj   +1 more source