ABSTRACT
Fluid measurements are the focus of this chapter. Quantitatively describing the fluid behavior is critical to interpreting surface measurements (as described in previous chapters). Therefore, this chapter includes the use of multi-hole probes for velocity and flow direction (swirl) measurements. Hotwire anemometry is also discussed for measurement of local, instantaneous velocities and turbulence quantities. Both single wire and multiple wire probes are presented. Local fluid temperatures are also considered using miniature thermocouple probes and cold wire anemometers. Possible sources of error with each of these measurement probes are discussed. Finally, examples for each of these probes are provided for the reader.
