Skip to main content
Article thumbnail
Location of Repository

Measurement of Reference Bubble Velocity Vector for a Local 4 Sensor Probe Using Orthogonal High Speed Cameras

By Suman Pradhan, Gary Lucas and X. Zhao

Abstract

In recent years, there has been an increase in the level of interest shown in making flow rate measurements in multiphase flow. This in part has been brought about by the metering requirements of the oil and natural gas industries. Measuring the volumetric flow rate of each of the flowing components is often required and this is particularly true in production logging applications, where it may be necessary to measure the flow rates of oil and water down hole in vertical and inclined oil wells. Within the University of Huddersfield, work has been undertaken on the study of vertical and inclined multiphase flow. Previous work was based on the use of local, dual-sensor conductance probes to obtain the local axial velocity and volume fraction of the bubbles in multiphase flows. The purpose of this research presented in this paper is to investigate the accuracy with which a 4-sensor probe can measure bubble velocity vectors using two orthogonal high speed cameras.\ud \ud \ud The probe was manufactured from 0.3mm diameter stainless steel acupuncture needles due to their high level of rigidity. The acupuncture needles were mounted inside a stainless steel tube with an outer diameter of 4mm. A procedure was carried out whereby where all the readings are taken simultaneously from both the cameras and 4-sensor probe. The camera and DAQ setting are made such they were controlled by an external trigger signal that is achieved thought the same circuit that is been used for the probe signal. The velocity vector of the top plane, centre of gravity (COG) and bottom plane of the bubbles were measured using the high speed cameras and compared with the bubble velocity vector obtained from the probe signal. In this paper bubble velocity vector is quantified in term of a polar angle α an azimuthal angle β and a velocity magnitude

Topics: T1, TA, QC
Publisher: University of Huddersfield
Year: 2007
OAI identifier: oai:eprints.hud.ac.uk:3780

Suggested articles

Citations

  1. (2002). A model for obtaining the velocity vectors of spherical droplets in multiphase flows from measurements using an orthogonal four-sensor probe.”, doi
  2. Measurement of the oil and water superficial velocities in vertical and inclined oil-in-water flows” doi
  3. Mishra “Measurement of bubble velocity components in a swirling gas-liquid pipe flow using a local four sensor conductance probe.” doi
  4. (2006). Panagiotopoulos “Sensitivity Analysis for a 4-Sensor Probe Used for Bubble Velocity Vector Measurement” Researchers conference
  5. Panayotopoulos “Power law approximation to gas volume fraction and velocity profile in low void fraction vertical gas-liquid flows” doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.