Facilities
UNSW Aerosol Dynamics Lab
Equipment List
- Breathing and Coughing Manikin
- Particle Counters
- Optical Particle Sizer (TSI 3330)
- NanoScan SMPS™ Nanoparticle Sizer (TSI 3910)
- Clarity Node-S
- Aerosol Generators
- LaVision Helium-Filled Soap Bubble (HFSB) generator
- Monodisperse Aerosol Generator (TSI 3470)
- Ultra-low Volume (ULV) Fogger
- Cameras
- Vision Research Phantom VEO 640
- Nac Memrecam Hx-7s
- PhaseOne Medium Format iXM-MV150F
- Light Sources
- GsVitec MultiLED MX
- GsVitec MultiLED L5
- GsVitec MultiLED QT
- Other Equipment
- TSI PortaCount Fit Tester TSI 2048
- Samsung HEPA Air Purifier AX90
- Air Dehumidifier DE5205/70
- Aranet4 CO2 Monitor with Aranet PRO base station
UNSW Acoustic Tunnel
The UNSW Acoustic Tunnel is a low-noise open jet anechoic wind tunnel facility used in the study of flow-induced noise and aeroacoustic phenomena.
Major specifications:
- Open jet test section of size 0.45 m x 0.45 m
- Operating flow velocity of 5 to 60 m/s
- Turbulence intensity of 0.67% at 20 m/s
- Anechoic chamber of size 3 m × 3.2 m × 2.15 m
- Anechoic chamber walls are acoustically treated with 0.25 m thick Melamine foam, creating a semi-anechoic environment above 300 Hz
- Supports point microphone measurements, acoustic beamforming, near field acoustic holography, hot-wire anemometry, mean and unsteady pressure measurements, Particle Image Velocimetry (PIV) and aerodynamic force measurements
Relevant publication: https://www.acoustics.asn.au/conference_proceedings/AAS2018/papers/p44.pdf
UNSW Large Aerodynamic Wind Tunnel
The UNSW large aerodynamic wind tunnel is a low turbulence, closed return wind tunnel that supports aerodynamic and wind engineering research.
Major specifications:
- Small test section
- Rectangular cross section of 1.22 m wide x 0.91 m high
- Operating flow velocity of 5 to 60 m/s
- Low turbulence intensity of 0.1% - Large test section
- Regular octagon cross section with a height of 3.05 m
- Cross sectional area of 7.70 m^2
- Operating flow velocity of 0.72 to 8.65 m/s Supports hot-wire anemometry, mean and unsteady pressure measurements, oil and smoke flow visualisation and aerodynamic force measurements
UNSW Supersonic Wind Tunnel
The UNSW supersonic wind tunnel is a blow-down type wind tunnel facility capable of producing a sustained Mach 3 flow for up to 20 seconds. It supports fundamental research in supersonic fluid mechanics and aeroacoustics.
Major specifications:
- Rectangular test-section of size 101.6 mm x 142.6 mm x 700 mm
- Operating Mach number: 3
- Supports Schlieren, mean and unsteady pressure measurements, hot-wire anemometry and pressure sensitive paint (PSP)
Education Wind Tunnels
AEROLAB Educational Wind Tunnel
- Test section size of 30.48 cm x 30.48 cm x 60.96 cm
- Operating flow velocity 5 to 65 m/s
AF1125 Benchtop Wind Tunnel
- Test section size of 12.5 cm x 12.5 cm x 35.0 cm
- Operating flow velocity of 0 to 36 m/s
Experimental and Numerical Techniques
Microphone phased-array processing techniques for localizing noise sources in experimental aeroacoustics:
- Acoustic beamforming
- Beamforming in a reverberant environment using numerical and experimental steering vector formulations http://dx.doi.org/10.1016/j.ymssp.2016.12.025
- Improving acoustic beamforming maps in a reverberant environment by modifying the cross-correlation matrix http://dx.doi.org/10.1016/j.jsv.2017.09.006
- A correction method for acoustic source localisation in convex shear layer geometries http://dx.doi.org/10.1016/j.apacoust.2017.09.020
- Three-dimensional beamforming of dipolar aeroacoustic sources http://dx.doi.org/10.1016/j.jsv.2015.06.030
- Acoustic time reversal
- Multiple line arrays for the characterization of aeroacoustic sources using a time-reversal method https://doi.org/10.1121/1.4890204
- Enhanced focal-resolution of dipole sources using aeroacoustic time-reversal in a wind tunnel https://doi.org/10.1016/j.ymssp.2015.09.037
- A simulation-based analysis of the effect of a reflecting surface on aeroacoustic time-reversal source characterization and comparison with beamforming https://doi.org/10.1016/j.wavemoti.2016.06.003
- Enhancing the focal-resolution of aeroacoustic time-reversal using a point sponge-layer damping technique http://dx.doi.org/10.1121/1.4890204
- Two-step hybrid calibration of remote microphones https://asa.scitation.org/doi/10.1121/1.5080462
- Acoustic absorption measurements using a two-microphone impedance tube https://www.acoustics.asn.au/conference_proceedings/AAS2017/papers/p79.pdf
- Transient interaction between a reaction control jet and a hypersonic crossflow http://dx.doi.org/10.1063/1.5018877
- Blade-passage noise https://doi.org/10.1121/1.5003651
- Aeolian tones generated by a square cylinder with a detached flat plate https://doi.org/10.2514/1.J051378
Remote microphone technique for unsteady surface pressure measurement:
Material characterisation:
Examples of numerical simulation capabilities: