Drag and lift forces on microscopic bubbles entrained by a vortex

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:100907

Sridhar, G; Katz, J ^[1]

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1. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Mechanical Engineering

The forces that act on bubbles as they are entrained by a vortex are experimentally measured using ``Particle Image Velocimetry.`` Fluorescent tracer particles and triple exposure images are used to simultaneously measure the velocity and acceleration of the fluid and the bubbles. The buoyancy, pressure and inertia forces are computed form the recorded data, while the drag and lift forces are determined from a force balance on the bubble. It is found that in the present range of bubble diameters, 500{micro}

• OSTI ID: 100907
• Report Number(s): CONF-940659--; ISBN 0-7918-1373-8
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BUBBLES
DATA ANALYSIS
ENTRAINMENT
EXPERIMENTAL DATA
FLOW VISUALIZATION
FLUID MECHANICS
TWO-PHASE FLOW
VORTICES