Numerical and physical modelling of bubbly flow phenomena

Technical Report · Mon Apr 01 04:00:00 EST 1991

OSTI ID:5731707

Prosperetti, A

The work carried out in the period 4/1/90 -- 3/31/91 has primarily been concerned with two problems related to the direct numerical simulation of the motion of spheres or bubbles in a liquid. The first problem is the calculation of the coefficients of added mass and drag for randomly placed bubble subject to an imposed oscillatory flow. The principal finding of this work has been the remarkable insensitivity of these coefficients to details of the flow and the surprisingly good performance of simple estimates already available in the literature. The second aspect of the work has been the development of a mathematical and numerical approach to the simulation of the transport of spheres by a liquid flow. Thirdly, we have implemented numerically a two-phase flow model based on averaged equations that will be used for comparisons with the direct numerical simulation results.

• Research Organization: Johns Hopkins Univ., Baltimore, MD (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG02-89ER14043
• OSTI ID: 5731707
• Report Number(s): DOE/ER/14043-2; ON: DE91013646
• Country of Publication: United States
• Language: English

Related Subjects

640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BUBBLES
DEFORMATION
DOCUMENT TYPES
DRAG
FLOW MODELS
FLUID FLOW
INTERACTIONS
MATHEMATICAL MODELS
MULTIPHASE FLOW
NOZZLES
OSCILLATIONS
PARAMETRIC ANALYSIS
PRESSURE EFFECTS
PROGRESS REPORT
SPHERES
TESTING
VALIDATION
VELOCITY
VISCOSITY
WAVE PROPAGATION