Results 1 to 10 of about 4,179 (164)

Overview on the Development Research of Vortex Lift Waverider

open access: yesHangkong gongcheng jinzhan, 2021
The waverider has good aerodynamic performance in hypersonic flight,however its performance is difficult to maintain when it deviates from the design state.
YI Huaixi, WANG Dou, LI Jun, LUO Shibin
doaj   +2 more sources

Three-dimensional large eddy simulation of hydrodynamics in multi-pier tandem bridge systems [PDF]

open access: yesScientific Reports
The wake flow generated by tandem bridge piers significantly interferes with downstream flow fields, resulting in complex hydrodynamic interactions that impact structural safety and durability.
Weiqun Liang   +4 more
doaj   +2 more sources

Numerical simulation of unsteady flows over a slow-flying bat

open access: yesTheoretical and Applied Mechanics Letters, 2015
This letter describes numerical simulation of the unsteady flow over a slow-flying bat by using the immersed boundary method based on the measured bat wing geometry and kinematics. The main vortical structures around the bat flapping wings are identified,
Shizhao Wang   +3 more
doaj   +3 more sources

A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder [PDF]

open access: yesSensors
This study conducts water channel experiments to measure and compare the lift forces experienced by the seal whisker-shaped sensor and the circular cylinder sensor in both no vortex generator and the wake of two types of circular cylinders.
Yitian Mao   +5 more
doaj   +2 more sources

Effect of vortex generator on the flow field over a conventional delta wing in subsonic flow condition at higher angles of attack [PDF]

open access: yesFME Transactions, 2021
Flow over a conventional delta wing has been studied experimentally at a subsonic flow of 20 m/sec and the flow field developed at higher angle of attack varying from 10° to 20° has been captured.
Patil Manthan   +5 more
doaj   +1 more source

The Effect of Location and Shape of Vortex Generators on Aerodynamic Characteristics of a NACA 4415 Airfoil

open access: yesمجلة النهرين للعلوم الهندسية, 2023
This study examines the flow behavior and lift coefficient variations of a NACA 4415 airfoil using different vortex generator configurations. Experimental investigations are conducted in a subsonic wind tunnel at a Reynolds number of 1.8 x 105.
Khuder N. Abed
doaj   +1 more source

Effect of Air Jet Vortex Generators on the Shock Wave Boundary Layer Interaction of Transonic Wing

open access: yesAerospace, 2023
The interaction between shock waves and turbulent boundary layers (SBLI) is a common phenomenon in transonic and supersonic aircraft wings. In this study, we simulated the SBLI of a classical NACA0012 wing at an angle of attack (AOA) of 1.4° and Mach ...
Tingkai Dai, Bo Zhang
doaj   +1 more source

Vortex-induced vibration of cylinder under sub-critical Reynolds number

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to achieve the accurate prediction of the amplitude response of a vortex-induced vibrating cylinder under the sub-critical Reynolds number, a method for establishing a Cl-A/D (lift coefficient-amplitude ratio)model of the forced ...
Li ZHOU   +3 more
doaj   +1 more source

Study of Vortex Generator Effect on Airfoil Aerodynamics Using the Computational Fluids Dynamics Method

open access: yesComputational and Experimental Research in Materials and Renewable Energy, 2020
The lift force is one of the important factors in supporting the aircraft flying capabilities. The airplane has a section called the aircraft wing. In particular, the wing section of aircraft is called the airfoil. One of the efforts to increase the lift
Siti Aisyah Ayudia   +2 more
doaj   +1 more source

Effect of Vortex Generators on Airfoil NACA 632-415 to Aerodynamic Characteristics Using CFD

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2023
To determine the aircraft’s flight performance, the airfoil type must be considered when designing the wing. A vortex can form when the airfoil travels through a fluid stream with a difference in velocity and pressure around it.
Rosyida Permatasari, Gusty Widyawati
doaj   +1 more source

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