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The transonic wind tunnel (HST) in Amsterdam is an industrial wind tunnel for the subtronic, transonic and low supersonic domain
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Type of wind tunnel
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Closed circuit, variable density, continuous wind tunnel with slotted top and bottom test section walls (12% open)
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Main features
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Test section
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2.0 m wide by 1.6 m or 1.8 m height
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Laval nozzle for supersonic operation
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Operating range
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0.15 < Ma < 1.35
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25 kPa < P < 390 kPa
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Re0.1 √(S) < 9 x 106
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288 K < T < 323 K
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Model support
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Remotely controlled transonic sting support system combined with
- straight support boom
- double roll support boom
- articulated support boom
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Remotely controlled subsonic sting support system
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Side wall support
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2D support
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Auxiliary systems
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Compressed air supply with a capacity of 8 kg/s continuously at 40 bar
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Remotely controlled y-z traversing system
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Inlet test rig
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Permanently installed seeding rack for Particle Image Velocimetry (PIV)
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Typical tests
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Configuration studies, database creation (civil and military transport aircraft, fighters, spacecraft)
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Engine integration studies by means of Turbofan Propulsion Simulators (TPS) for air turbines or propellers
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Air exhaust simulation with compressed air
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Internal and external air intake surveys
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