WS14 M ulti point sim u Itaneous measurement of velocity and temperature fluctuations with fine-wire sensors

Abstract

Multipoint simultaneous measurement of velocity and thermal fields using an array of five three-wire probes, each composed of an X-type hot-wire and a fine cold-wire, is introduced to investigate spatiotemporal structures in an adverse-pressure-gradient turbulent boundary layer. If we notice the frequency response of the fine wires, this technique is promising to capture near-wall turbulent structures with high temporal resolutions.