VM100 Transonic Wind Tunnel
The VM100 is a modular, continuous-operation high-speed wind tunnel at KTH’s Heat and Power Technology (HPT) laboratory, supporting experimental research in turbomachinery aerodynamics, aeroelasticity and steady/unsteady flow physics, etc.
VM100 is based on a straight, rectangular test section (100 mm × 120 mm) and is designed for controlled transonic conditions, including experiments involving shock-wave/boundary-layer interaction and forced unsteadiness (e.g., flutter-relevant reduced frequencies).
Key technical data:
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Open-cycle wind tunnel
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Process air: 4.7kg/s at temperatures up 25-90 °C and 4bars
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Power supply: 1MW compressor
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Max mass flow: 4.7kg/s
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Access points through 4 side with different windows
Intrumentation
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3 component Laser-2-Focus system
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2 component LDV system
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Pressure Sensitive Paint.
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Hot Wire/film system
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Pressure acquisition via PSI Systems (NetScanner 9116)
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Traverse three- and five-hole probe measurements
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Oil-flow visualizations.
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Unsteady pressure measurements via Kulite pressure transducer (18 channel DTS and 8 channel Dewesoft)
Interchangeable test sections:
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Converging – Diverging Nozzle unit
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Pneumatic probe calibration unit
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Multiple axial traverse units
More information and contact
VM100 is part of the Laboratory of the Division of Heat and Power Technology at KTH Energy Technology, which also hosts multiple turbomachinery and high-speed test rigs and an air-supply system used across wind-tunnel testing activities.
External partners and students interested in using the facility for experiments, projects or theses are welcome to get in touch.
