Measurement of Gas and Liquid Velocities in an Air-Water Two-Phase Flow using Cross-Correlation of Signals from a Double Senor Hot-Film Probe

Gurau, B. ; Vassalo, P. ; Keller, K.

Lockheed Martin Corporation, Schenectady, NY (United States)

关键词: Anemometers;    Air;    Phase Velocity;    Two-Phase Flow;    42 Engineering;   

DOI  :  10.2172/820700
RP-ID  :  LM-02K001
RP-ID  :  AC12-00SN39357
RP-ID  :  820700

美国|英语

来源: UNT Digital Library

【 摘 要 】

Local gas and liquid velocities are measured by cross-correlating signals from a double sensor hot-film anemometer probe in pure water flow and air water two-phase flow. The gas phase velocity measured in two-phase flow agrees with velocity data obtained using high-speed video to within +/-5%. A turbulent structure, present in the liquid phase, allows a correlation to be taken, which is consistent with the expected velocity profiles in pure liquid flow. This turbulent structure is also present in the liquid phase of a two-phase flow system. Therefore, a similar technique can be applied to measure the local liquid velocity in a two-phase system, when conditions permit.