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

Abstract

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.

Authors:
; ; ;  [1]
  1. National Tsing-Hua Univ., Dept. of Nuclear Engineering, Hsin-Chu (TW)
Publication Date:
OSTI Identifier:
7200379
Resource Type:
Journal Article
Journal Name:
Nuclear Technology; (United States)
Additional Journal Information:
Journal Volume: 99:1; Journal ID: ISSN 0029-5450
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Chung, N M, Lin, W K, Pei, B S, and Hsu, Y Y. A model for sound velocity in a two-phase air-water bubbly flow. United States: N. p., 1992. Web.
Chung, N M, Lin, W K, Pei, B S, & Hsu, Y Y. A model for sound velocity in a two-phase air-water bubbly flow. United States.
Chung, N M, Lin, W K, Pei, B S, and Hsu, Y Y. 1992. "A model for sound velocity in a two-phase air-water bubbly flow". United States.
@article{osti_7200379,
title = {A model for sound velocity in a two-phase air-water bubbly flow},
author = {Chung, N M and Lin, W K and Pei, B S and Hsu, Y Y},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/7200379}, journal = {Nuclear Technology; (United States)},
issn = {0029-5450},
number = ,
volume = 99:1,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1992},
month = {Wed Jul 01 00:00:00 EDT 1992}
}