Results 1 to 10 of about 309 (132)
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
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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 ...
Dijana Damljanović
exaly +4 more sources
Pressure-Sensitive Paint Measurements in a Blowdown Wind Tunnel
Journal of Aircraft, 2005 A methodology to correct for temperature effects on pressure-sensitive paint data in a blowdown wind tunnel has been suggested. PSP measurements using Optrod-B1 paint were made on an aircraft model instrumented with thermocouples and conventional pressure taps.
P R Viswanath
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Stagnation Pressure Transient Control in a Supersonic Blowdown Wind Tunnel Test Facility
Materials Today: Proceedings, 2016 Abstract Research in the area of wind tunnel flow parameters control has been intensified in recent years, in an attempt to improve quality and efficiency of the wind tunnel operation. In this paper, stagnation pressure transient control in a supersonic blowdown-type wind tunnel is considered, with the aim of increasing available measurement time and
Biljana Ilić, Jovan Isakovic
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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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Measurement: Journal of the International Measurement Confederation, 2017 Abstract Current trends in the development of control systems involve disproportionately high costs for embedded software integration and testing techniques that rely almost exclusively on exhaustive testing of more or less complete versions of complex systems. Wind tunnel control systems are not an exception. A formal methodology for supersonic flow
Biljana Ilić, Jovan Isakovic
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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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DIGITAL DATA GATHERING SYSTEM, BLOWDOWN WIND TUNNEL [PDF]
, 1958 Presented at ihe Ninth Meeting of the Supersonic Wind-Tunnel Assoc., Univ. of Southern Calif., and U. S. Naval Air Missile Test Center, Point Mugu, Calif., Apr. The Sandia 12 x 12-inch, transonic, blowdown tunnel facility is being equipped with a 10-channel digital datagathering system. The design and operation of ihe system are discussed. (W.J.H.)
Botner, W T
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Model-based stagnation pressure control in a supersonic wind tunnel [PDF]
FME Transactions, 2016 The flow parameters control in wind tunnels is an area of intense research in recent years, with the aim of improving quality and efficiency of the wind tunnel operation.
Ilić Biljana +3 more
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Thermal effects influencing measurements in a supersonic blowdown wind tunnel
Thermal Science, 2016 During a supersonic run of a blowdown wind tunnel, temperature of air in the test section drops which can affect planned measurements. Adverse thermal effects include variations of the Mach and Reynolds numbers, variation of airspeed, condensation of moisture on the model, change of characteristics of the instrumentation in the model, et ...
Dijana Damljanović
exaly +2 more sources