1 / 1

Plasma Anemometer for High Enthalpy Flows

f c - f m. f c. f c + f m. f c. f m. f m. Plasma Anemometer for High Enthalpy Flows. OBJECTIVE: Develop a robust, high frequency response sensor for mass-flux measurements in hypersonic and high-enthalpy flows .

yaron
Télécharger la présentation

Plasma Anemometer for High Enthalpy Flows

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. fc - fm fc fc + fm fc fm fm Plasma Anemometer forHigh Enthalpy Flows OBJECTIVE: Develop a robust, high frequency response sensor for mass-flux measurements in hypersonic and high-enthalpy flows. - Frequency response ~ 1MHz. - High enthalpy capability. - Small measurement volume. - Insensitive to temperature. - Low power: 5 Watt, 1.5 kVrms. - Wireless Transmission. Spectral Energies. Approach: A.C. Glow Discharge with Amplitude Modulated Carrier High-Speed Digitizer Real Time Graphical Display A.C. Carrier fc Amplitude Modulated Carrier Modulating disturbance fm Electrode Real Time Demodulation U Velocity Fluctuations wireless Plasma Electrode facq= 100 MHz To host PC Modulated Carrier Demodulation: Separation of Carrier and Side-Bands Spectral Domain Time Domain Amplitude Modulation Carrier Carrier Gives Mean Response Side-Band Side-Band Side-Bands Give Unsteady Response Application: High Speed Boundary Layer and /Shear Flows Mach 3.5 Shear Layer Measurement Velocity Sensor: NASA Langley Mach 3.5 Facility Carrier Gives Mean Response Side-Bands Give Unsteady Response High-speed shear-layer: 600 kHz frequency response Application: Gas Turbines – Compressor, Combustor, Turbine, and Augmentor Pressure Sensor: Full-Scale GE Gas Turbine Comparison of Kulite and Plasma in Compressor Off On

More Related