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Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation
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Experiment and Numerical Simulation on Gas-Liquid Annular Flow through a Cone Sensor.

Denghui He1,2, Senlin Chen3, Bofeng Bai4

  • 1State Key Laboratory of Eco-Hydraulic in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China. hedenghui@xaut.edu.cn.

Sensors (Basel, Switzerland)
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Wet gas flow measurement using cone meters is improved by understanding the cone sensor. Shorter vortex length in wet gas flow leads to shorter pressure recovery, enabling stable measurements at the back-cone apex.

Keywords:
VOF coupled DPMcone sensorgas-liquid annular flowpressure recovery lengthvortex

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Area of Science:

  • Fluid mechanics
  • Multiphase flow measurement
  • Wet gas flow metering

Background:

  • Cone meters are increasingly used for wet gas measurement due to their advantages.
  • The precise role of the cone sensor in wet gas flow measurement is not fully understood.
  • Investigating gas-liquid annular flow through cone sensors is crucial for optimizing measurement accuracy.

Purpose of the Study:

  • To investigate the gas-liquid annular flow through a cone sensor.
  • To analyze the influence of the cone sensor on pressure recovery characteristics and flow structure.
  • To provide insights for optimizing cone sensor design in wet gas measurement.

Main Methods:

  • Experimental investigation of gas-liquid annular flow.
  • Numerical simulation of flow dynamics within the cone sensor.
  • Analysis of pressure recovery and flow structure under varying conditions.

Main Results:

  • Vortex length is reduced in gas-liquid annular flow compared to single-phase gas flow.
  • Shorter vortex length correlates with a shorter pressure recovery length.
  • Stable flow around the back-cone apex prevents liquid entrainment and ensures accurate low-pressure readings.

Conclusions:

  • The cone sensor significantly impacts pressure recovery and flow structure in wet gas measurement.
  • Measuring low pressure at the back-cone apex is recommended for stable multiphase flow readings.
  • Findings guide the structural optimization of cone sensors for enhanced wet gas measurement accuracy.