Results 1 to 10 of about 113 (105)
Blowdown wind tunnel control using an adaptive fuzzy PI controller [PDF]
INCAS Bulletin, 2013 The paper presents an approach towards the control of a supersonic blowdown wind tunnel plant (as evidenced by experimental data collected from “INCAS Supersonic Blowdown Wind Tunnel”) using a PI type controller.
Corneliu Andrei NAE
doaj +2 more sources
Dynamic responses and vibration control of the transmission tower-line system: a state-of-the-art review. [PDF]
ScientificWorldJournal, 2014 This paper presented an overview on the dynamic analysis and control of the transmission tower‐line system in the past forty years. The challenges and future developing trends in the dynamic analysis and mitigation of the transmission tower‐line system under dynamic excitations are also put forward.
Chen B, Guo WH, Li PY, Xie WP.
europepmc +2 more sources
Inviscid and viscous interactions in subsonic corner flows. [PDF]
ScientificWorldJournal, 2013 A flap can be used as a high‐lift device, in which a downward deflection results in a gain in lift at a given geometric angle of attack. To characterize the aerodynamic performance of a deflected surface in compressible flows, the present study examines a naturally developed turbulent boundary layer past the convex and concave corners.
Chung KM, Chang PH, Chang KC.
europepmc +2 more sources
Intelligent Controller Design for a Blowdown Supersonic Wind Tunnel
International Journal of Control and Automation, 2014 In this paper, first, the nonlinear mathematical model of special Blowdown Supersonic Wind Tunnel (BSWT) consisting of a set of ordinary differential and algebraic equations is developed in Matlab/Simulink software environment. At the second step, an Artificial Neural Network (ANN) is used for finding the optimum membership functions of the Fuzzy Logic
A. Nazarian Shahrbabaki +3 more
openaire +2 more sources
Selection criteria of optimal conditions for supersonic tests in a blowdown wind tunnel [PDF]
Scientific Technical Review, 2016 A natural desire of a wind tunnel test engineer is to plan and perform a test that will resemble the actual flight conditions as closely as possible. Geometric similarity and identical flight and wind tunnel Mach numbers are the primary requirements and ...
Damljanović Dijana, Vuković Đorđe
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OPTIMIZED CONTROLLER DESIGN FOR A BLOWDOWN SUPERSONIC WIND TUNNEL BY USING GENETIC ALGORITHM [PDF]
مجله مدل سازی در مهندسی, 2017 Blowdown Supersonic Wind Tunnels (SWTs) are generally operated with a constant stagnation pressure in the settling chamber, with control usually provided by one or more pressure regulators or control valves. In this paper, first, a Simulink block diagram
Mehradad Bazazzadeh +3 more
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Wind tunnel verification of base-bleed effects on aerodynamic characteristics of an axi-symmetric projectile [PDF]
Scientific Technical Review, 2021 Experimental verification of base-bleed effects on aerodynamic characteristics for the supersonic flight stages was requested during the development of an axi-symmetric projectile.
Damljanović Dijana +3 more
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Mode Switching in a Compressible Rectangular Cavity Flow
Aerospace, 2023 This study determines the mean and fluctuating pressures for flow through a rectangular shallow cavity (ratio between the length and the depth = 2.43, 4.43, and 6.14; ratio between the length and the width = 0.5, 1.0, and 2.0) at a Mach number of 0.64 in
Yi-Xuan Huang, Kung-Ming Chung
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INCAS TRISONIC WIND TUNNEL [PDF]
INCAS Bulletin, 2009 The 1.2 m x 1.2 m Trisonic Blowdown Wind Tunnel is the largest of the experimental facilities at the National Institute for Aerospace Research - I.N.C.A.S. "Elie Carafoli", Bucharest, Romania.
Florin MUNTEANU
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International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 To examine the impact of oxidative jets on the thrust vector angle, secondary combustion efficiency, and combustion chamber pressure, inert gas (nitrogen) and pure oxygen are injected into the primary flow, which includes combustible components, at various locations in the divergence section and throat using different injection techniques.
Dongfeng Yan +5 more
wiley +1 more source