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ELORET researchers have been at the forefront of developing and utilizing advanced diagnostics, for a wide range of flows, in conducting their research at NASA. Expertise and help are available in the following:

Velocity, Flow Angle, Turbulence Correlations and Energy Spectra

• laser Doppler velocimetry (LDV), including very-near-wall techniques
• hot- and cold-wire anamometry
• single- and multi-hole pressure probes

Pressure

• high-frequency transducers
• piezoelectric and piezoresistive gauges
• pitot, static, and pitot-static probes

Temperature

• thermistors, thermocouples
• temperature probes

Density

• laser holography

Skin Friction

• laser interferometric skin friction (LISF)
• very-near-wall LDV

Heat Transfer

• thin film, coax thermocouple, and slug calorimeter gauges
• condensing steam techniques

Other

• transmission-based particle size measurements
• gas chromatographs
• magnetic detectors
• Langmuir probes
• wind-tunnel force balances

Flow Visualization Techniques

• shadowgraph (including high-speed movies), Schlieren
• laser interferometry, planar laser scattering
• surface oil flow