Equipment

Testing Facilities

Wind Tunnel

  • Test cross-section 1,87m x 1,40m,
  • Maximum flow Velocity 55 m/s
  • Turbulence Intensity < 0,4%

 

Water Tunnel

  • Test cross-section 0,80m x 1,00m
  • Length of the test-section 8,8 m
  • Maximum flow Velocity 2,5 m/s
  • Turbulence Intensity < 2%
  • Contraction ratio 4:1

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Oil Tunnel- Matched Index of Refraction (MIR)

  • Test cross-section 0,60m x 0,45 m
  • Maximum flow velocity 4,8 m/s

Aeroacoustic Wind Tunnel

  • Test-Sections:
    A1 = 0.2 m x 0.26 m
    A2 = 0.25 m x 0.33 m
    A3= 0.35 m x 0.5 m

 

  • Max. Velocity:
    U1= 55 m/sec (200 km/h)
    U2 = 35 m/sec (125 km/h)
    U3 = 20 m/sec (72 km/h)

 

  • Max. Volume Rate: 2.8 m³/s
  • Turbulence Level: < 0.22 %
  • Velocity Profile: Difference < 0.5 % of the Mean Value
  • Sound Level Lp in 1 m Distance: 72 dB(A) by v = 50 m/sec

Axial Fan Test-Rig

  • Measurements: Characteristic Line + Acoustics
  • Dimension: 7m x 3.3 m 2.5m (LxHxB)
  • Max. Volume rate: 3m³/s
  • Max. Impeller diameter: D=1m
  • Max. Pressure difference: 1300 Pa

Anechoic Chamber

  • Utilizes Flate Absorbers
  • Volume: 5 m x 4.6 m x 3 m
  • Cut-off Frequency 300 Hz
  • Semi- and Full Free Field Conditions

Radial Impeller Test-Rig

 

Test Rig for Axial Fans in Pipes

Turbocharger – Cold Gas Test rig

  • Pressure Supply: 8,5 bar
  • Mass Flow Rate : ~ 800 kg/h
  • max. TC– Rotation Speed : 140000 1/min
  • Integration Slaved Motor

Rheology Laboratory

High-Pressure Laboratory

12 Test benches for 24h measurements (combustion technology)

Test rig for centrifugal pumps

Suction side test chamber for small fans and blowers

5 Generations artificial lung test bench

Measurement Equipment

High-Speed Camera

Infrared Camera

High-pressure rheometer

Thin-film rheometer

Bubble column reactors

Exhaust analysis systems

High-temperature test bench

Test bench for CIP cleaning

Rheometric Measurement Equipment

  • Narrow-gap rotational rheometer based on: Anton Paar MCR 501
  • Narrow-gap rotational rheometer with optical access based on: Physica UDS 200:
    • Parallel disks, diameter 12.5-50 mm
    • Gap widths: oscillation down to 5 µm, rotation down to about 20 µm
    • Shear rates: up to 150,000/s
    • Temperature range: 20-40°C
    • Features: Fluorescence microscope, birefringence, normal forces at high shear rates
  • Ubbelohde viscometer: Schott, diverse
  • High-pressure rolling ball viscometer: For pressures up to 700 MPa
  • High-pressure falling ball viscometer: For pressures up to 700 MPa
  • High-pressure torsional shear-wave rheometer: For pressures up to 300 MPaH

High-pressure devices

  • Density: Jamin interferometer. Precise density measurements for transparent liquids and pressures up to 700 MPa
  • Compressibility: Screw press. For liquids and pressures up to 700 MPa
  • Thermal conductivity: Unsteady hot-wire method. For liquids and pressures up to 500 MPa
  • Zero viscosity: Rolling ball viscometer: For liquids and pressures up to 700 MPa
  • Zero viscosity: Falling ball viscometer: For transparent liquids and pressures up to 700 MPa
  • Viscoelasticity: Torsional shear-wave rheometer. For pressures up to 300 MPa
  • pH-value: Optical spectoscopy. Also for intransparent liquids and near solid surfaces. Pressures up to 700 MPa
  • Melting curve, crystallization: Polarization microscope. For transparent samples and pressures up to 700 MPa
  • Crystallization: Light scattering. For transparent samples and pressures up to 700 MPa
  • Thermofluiddynamics: particle image velocimeter, Laser Doppler velocimeter, hot-wire anemometry, liquid crystal thermometry.For transparent samples and pressures up to 700 MPa
    • Autoclaves with optical windows. Volumes ranging from 2 ml to 1.5 l. Automatically controlled. Pressures up to 700 MPa
  • Autoclaves without optical access: 8 parallel autoclaves 32 ml volume each, 1 autoclave of 160 ml volume. Temperature, pressure, compression ramp, holding time, pressure cycles of each autoclave can be controlled independently. Pressures up to 900 MPa, temperature range from -20 °C to 80 °C

Acoustic Measurements

    • Microphone- Array
    • Multi Microphone Measurements (B&K)
    • Microflown pu-Probe
    • Sound Intensity Probe
    • Artificial Heads (KEMAR, HEADAcoustics)

Vibration Measurements

    • Laser Scanning Vibrometer
    • Laser Vibrometer
    • DMS
    • Acceleration Sensors
    • Force Measurements

Flow Measurements

    • Particle Image Velocimetry PIV
    • High speed PIV
    • Laser-Doppler-Anemometer LDA
    • Phase-Doppler-Anemometer PDA
    • 3D Hot Wire Measurements (Streamline)
    • High Speed Flow Visualization

Pressure Measurements

    • Multi Pressure System: 192 Channels (Pressure Systems)
    • Multi Pressure System: instat. Pressure (Kulite): 64 Pressure Probes
    • 16 – Channels Telemetric System

Data Analysis and Processing

    • PXI Systeme (NI)
    • LabView / MATLAB
    • SQuadriga – ARTEMIS Software

Microphone Array – Rotating System

    • Circular array with 64 microphones
    • Setup on suction side
    • Synchronous acquisition of microphone and rpm signal
    • Virtual rotation of the array with the rotational speed of the fan
    • Possibility of applying beam-forming algorithms in the frequency domain

Computer Hard- and Software

  • CAD-Software
  • CAE-Software
    • Diverse commercial simulation software
    • OpenFOAM
    • SU2
    • FASTEST-3D (in-house CFD-Code under on-going development)
    • Postprocessing software
  • Further Software
    • LabVIEW
    • MATLAB
    • Maple
    • Mathematica

The High-Performance computing clusters of Regionales Rechenzentrum Erlangen (RRZE) enable us to perform large-scale simulations in a short amount of time.

Workshops

  • Mechanical Work Shop
    • Turning Machine
    • Milling Machine
  • Electrical Work Shop
    • extensive measuring and inspection equipment
    • soldering station