Results 181 to 190 of about 3,175 (205)

Model Reduction and Analysis of Deep Dynamic Stall on a Plunging Airfoil using Dynamic Mode Decomposition

53rd AIAA Aerospace Sciences Meeting, 2015
Recent years have seen increased emphasis on mathematical model reduction using modal decomposition techniques of high dimensional flow field data from experiments as well as numerical simulations. These tools decode the complex unsteady flow-field into several modes. Different tools highlight different flow dynamics.
Arvind T. Mohan, Miguel R. Visbal, Datta V. Gaitonde   +2 more
openaire   +1 more source

Design of a nonlinear multi-input–multi-output sliding mode pitch angle and plunge controller for a 5MW wind turbine blade tip

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019
Traditionally, wind turbine blades are primarily controlled by varying the pitch angle of the full blade.
Ranjeet Agarwala, Robert A. Chin, Praveen Malali   +2 more
openaire   +1 more source

Effect of welding parameters (plunge depths of shoulder, pin geometry, and tool rotational speed) on the failure mode and stir zone characteristics of friction stir spot welded aluminum 2024-T3 sheets

Journal of Mechanical Science and Technology, 2015
The main purpose of this study was to investigate the effect of welding parameters on the failure mode and stir zone characteristics of aluminum alloy 2024-T3 joined by friction stir spot welding. The welding parameters in this work are tool rotational speed, plunge depths of shoulder, and pin geometry.
Moslem Paidar, Alireza Khodabandeh, Mahsa Lali Sarab, Morteza Taheri   +3 more
openaire   +1 more source

The plunging-mode response of an idealized airplane to atmospheric turbulent gusts

Journal of Sound and Vibration, 1976
Abstract For the plunging-mode motion of an idealized airplane with pitch neglected, the response statistics have been formulated subject to atmospheric turbulence prescribed by the so-called Dryden's energy spectrum. The stationary input-response relation yields the following conclusions.
openaire   +1 more source

Influence of Plunge/Pitch Mode on Transonic Buzz Characteristics in Buffeting Flow

AIAA Journal
Buzz is a critical concern in aeroelasticity in modern aircraft design. It stems from the coupling of flow and structural modes, causing structural instability. As wings grow larger, aeroelastic effects gain more significance, especially the influence of the structural mode of the main wing with higher flexibility on the buzz characteristics.
Liangcheng Nie, Chuanqiang Gao, Zihao Dou, Weiwei Zhang   +3 more
openaire   +1 more source

Aeroelastic characteristics and mechanism of plunging mode in turbine cascades under transonic buffet flow

Physics of Fluids
The transonic flow is prevalent in the aerospace field. It is characterized by a complex flow mechanism and can induce intricate aeroelastic phenomena, resulting in substantial structural vibrations or even fractures. The computational fluid dynamics/computational structural dynamics (CFD/CSD) method and reduced-order model (ROM) method are both used ...
Jingyuan Yang, Jiaqing Kou, Weiwei Zhang
openaire   +1 more source

Experimental investigation of oxygen transfer efficiency in hydraulic jumps, plunging jets, and plunging breaking waves

Water Science and Technology: Water Supply, 2022
Ashabul Hoque, Hoque Ashabul
exaly  

Bilateral Plunging Ranulas in South Auckland: Evidence for a Genetic Basis

Laryngoscope, 2021
Tary Yin, Prabha Jain, John D Harrison
exaly  

Experimental investigation of impact forces induced by plunging breakers on a vertical cylinder

Ocean Engineering, 2019
Bing Tai, Yuxiang Ma, Guohai Dong
exaly  

Plunging jet characteristics of plunging breakers

Coastal Engineering, 1997
Hubert Chanson
exaly