A model for sound velocity in a two-phase air-water bubbly flow

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Nuclear Technology; (United States)

OSTI ID:7200379

Chung, N M; Lin, W K; Pei, B S; Hsu, Y Y ^[1]

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1. National Tsing-Hua Univ., Dept. of Nuclear Engineering, Hsin-Chu (TW)

In this paper, wave propagation in a homogeneous, low void fraction, two-phase air-water bubbly flow is analyzed through the compressibility of a single bubble to derive a P({rho}) relation; the dispersion relation is then derived by a homogeneous model. The phase velocity and attenuation calculated from the model are compared with existing data and are in good agreement. The momentum transfer effect is considered through the virtual mass term and is significant at a higher void fraction. The interfacial heat transfer between phases is significant at low frequency, while bubble scattering effects are important at high frequency (near resonance). Bubble behavior at both low and high frequency is derived based on the isothermal and the adiabatic cases, respectively. The phase velocity occurs at the limiting condition in both cases. Furthermore, resonance is present in the model, and the resonant frequency is determined.

• OSTI ID: 7200379
• Journal Information: Nuclear Technology; (United States), Vol. 99:1; ISSN 0029-5450
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
WATER
AIR FLOW
TWO-PHASE FLOW
VOID FRACTION
ADIABATIC PROCESSES
BUBBLES
CALCULATION METHODS
DISPERSION RELATIONS
FLOW MODELS
HEAT EXCHANGERS
ISOTHERMAL PROCESSES
MOMENTUM TRANSFER
PHASE VELOCITY
WAVE PROPAGATION
FLUID FLOW
GAS FLOW
HYDROGEN COMPOUNDS
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
VELOCITY
420400* - Engineering- Heat Transfer & Fluid Flow