Eddy number distribution in isotropic turbulence and its application for estimating mass transfer coefficients

Research output: Contribution to journalArticlepeer-review

Standard

Harvard

APA

Vancouver

Author

Bibtex

@article{a0ef7e5227ce4f3c91bd6cb9c87e142f,
title = "Eddy number distribution in isotropic turbulence and its application for estimating mass transfer coefficients",
abstract = "The eddy number distribution for isotropic turbulent flows has been derived by manipulating well-established formulae for describing turbulence. The distribution has been used to derive an expression relating the fractional rate of surface renewal, and hence mass transfer coefficients across gas-liquid interfaces, to key process variables such as the local energy dissipation rate and the Kolmogorov scale. The expression has been compared with the previously published roll-cell and eddy-cell models, which were applied to correlating local mass transfer coefficients in a pipe and an open absorption channel. Excellent agreement has been found. The expression has also been applied to correlating the gas-side mass transfer coefficients for liquid evaporation in wetted wall pipe flows, and the mass transfer coefficient for solid dissolution adjacent to a solid-liquid interface in a stirred tank. The theoretical correlations have been validated by published experimental data.",
keywords = "Eddy number, Isotropic turbulence, Mass transfer coefficients",
author = "Zhibing Zhang and Thomas, {Colin R.}",
year = "1996",
language = "English",
volume = "140",
pages = "207--217",
journal = "Chemical Engineering Communications",
issn = "0098-6445",
publisher = "Taylor & Francis",

}

RIS

TY - JOUR

T1 - Eddy number distribution in isotropic turbulence and its application for estimating mass transfer coefficients

AU - Zhang, Zhibing

AU - Thomas, Colin R.

PY - 1996

Y1 - 1996

N2 - The eddy number distribution for isotropic turbulent flows has been derived by manipulating well-established formulae for describing turbulence. The distribution has been used to derive an expression relating the fractional rate of surface renewal, and hence mass transfer coefficients across gas-liquid interfaces, to key process variables such as the local energy dissipation rate and the Kolmogorov scale. The expression has been compared with the previously published roll-cell and eddy-cell models, which were applied to correlating local mass transfer coefficients in a pipe and an open absorption channel. Excellent agreement has been found. The expression has also been applied to correlating the gas-side mass transfer coefficients for liquid evaporation in wetted wall pipe flows, and the mass transfer coefficient for solid dissolution adjacent to a solid-liquid interface in a stirred tank. The theoretical correlations have been validated by published experimental data.

AB - The eddy number distribution for isotropic turbulent flows has been derived by manipulating well-established formulae for describing turbulence. The distribution has been used to derive an expression relating the fractional rate of surface renewal, and hence mass transfer coefficients across gas-liquid interfaces, to key process variables such as the local energy dissipation rate and the Kolmogorov scale. The expression has been compared with the previously published roll-cell and eddy-cell models, which were applied to correlating local mass transfer coefficients in a pipe and an open absorption channel. Excellent agreement has been found. The expression has also been applied to correlating the gas-side mass transfer coefficients for liquid evaporation in wetted wall pipe flows, and the mass transfer coefficient for solid dissolution adjacent to a solid-liquid interface in a stirred tank. The theoretical correlations have been validated by published experimental data.

KW - Eddy number

KW - Isotropic turbulence

KW - Mass transfer coefficients

UR - http://www.scopus.com/inward/record.url?scp=0029673234&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0029673234

VL - 140

SP - 207

EP - 217

JO - Chemical Engineering Communications

JF - Chemical Engineering Communications

SN - 0098-6445

ER -