2010 Tutorial School on Fluid Dynamics: Topics in Turbulence

Experimental Methods I

Kenneth Kiger & James Wallace, University of Maryland

Why do we perform experiments?
Hot-wire and hot-film anemometry

• forced convection cooling
• effective cooling velocity
• multi-sensor probes
• velocity vector and velocity gradient tensor measurements
• Taylor's frozen turbulence hypothesis
• constant-current operation
• constant-temperature operation
• calibration

• light propagation and interference
• Doppler shift
• instrument configurations
• post-processing