Crossed hot-wire data acquisition and reduction system
Abstract
The report describes a system for rapid computerized calibration acquisition, and processing of data from a crossed hot-wire anemometer is described. Advantages of the system are its speed, minimal use of analog electronics, and improved accuracy of the resulting data. Two components of mean velocity and turbulence statistics up to third order are provided by the data reduction. Details of the hardware, calibration procedures, response equations, software, and sample results from measurements in a turbulent plane mixing layer are presented.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1984
- Bibcode:
- 1984STIN...8420807W
- Keywords:
-
- Air Flow;
- Incompressible Flow;
- Isothermal Flow;
- Turbulent Flow;
- Two Dimensional Flow;
- Velocity Distribution;
- Analog Data;
- Calibrating;
- Hot-Wire Anemometers;
- Mixing Layers (Fluids);
- Instrumentation and Photography