Constant Temperature Anemometry (CTA) - Hot-Wire Anemometry - Thermal Anemometry
Measurement of turbulent flows
Constant Temperature Anemometry (CTA), also known as Thermal Anemometry, is a technique for the measurement of turbulence in 1, 2 or 3-dimensional gas and liquid flows, using hot-wire or hot-film probes inserted in the flow.
CTA is particularly suitable for the measurement of flows with very fast fluctuations at a point (high turbulence) and the study of flow micro structures, where there is a need to resolve small flow eddies down to the order of tenths of a mm.
Features:
| Measures velocities from a few cm/s to supersonic |
High temporal resolution: fluctuations up to several hundred kHz |
| High spatial resolution: eddies down to 1 mm or less |
Measures all three velocity components simultaneously |
| Provides instantaneous velocity information |
Continuous analog output |
Probes and Calibration Equipment
Learn more about CTA
Measurement Principles
CTA is a measurement technique well suited for the study of fine structures in turbulent flows. The working principle is based on the cooling effect of a flow on a heated body. Read More
Application Examples
Wind tunnel experiments for testing aerodynamics of e.g. cars, trains and aircraft Read More
Brochure
Flow Field Diagnostics - Constant Temperature Anemometry 346
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