Abstract:

This dataset contains images from Particle Image Velocimetry (PIV) measurements for bubble-in-chain flows at different release frequencies (ranging 3~12 Hz). The experiments were conducted in the tank located in the Zachry Department of Civil Engineering at Texas A&M University. Bubble-in-chain flow is defined as the water flow purely introduced by the disturbance of rising bubbles in the stagnant water. In this experiment, air bubbles were supplied from a single orifice at the bottom of the tank (1 m water depth), and all bubbles have diameters of 5.5 ~ 6.5 mm. The PIV measurements were carried out to measure the mean flow and turbulence in the centerline of the bubble-in-chain induced flow, at about 0.5 m above the source. For each release frequency, four repeated runs were performed with each generating 4312 pairs of images.

Suggested Citation:

Wang, Binbin, bwang314@tamu.edu. 2018. Particle Image Velocimetry of bubble-in-chain flows in a laboratory tank. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7GX493N

Publications:

Wang, B., & Socolofsky, S. A. (2019). Characteristics of mean flow and turbulence in bubble-in-chain induced flows. Physical Review Fluids, 4(5). doi:10.1103/physrevfluids.4.054302

Purpose:

The PIV measurements of bubble-in-chain flow are to quantify the characteristics of mean and turbulence of the water flow induced by the rising bubbles from a single orifice. This study aims to understand the fluid dynamics in multiphase flow under very low void fraction conditions.

Data Parameters and Units:

This dataset contains a folder called “calibrated” that contains a calibration ruler and six main folders with the mages from the Particle Image Velocimetry (PIV) measurements for bubble-in-chain flows at different release frequencies (ranging 3~12 Hz). Each folder is call Q1 to Q6 and contains 4 folders (run1 to run 4). Each Q folder is different frequency (and flow rate). Q1 = 16 ml/min and 3Hz Q2 = 28 ml/min and 4.8 Hz Q3 = 47 ml/min and 6.9 Hz Q4 = 68 ml/min and 9.5 Hz Q5 = 79 ml/min and 9.6 Hz Q6 = 94 ml/min and 12 Hz Velocity of water (cm/s) obtained from images.

Methods:

Particle Image Velocimetry

Individual Files: