Cheung, A, Lee, E, Yuen, R, Yeoh, G, Cheung, S
A numerical model using the large eddy simulation (LES) approach with considerations of turbulence, combustion, soot chemistry and radiation effects is presented and employed to capture the pulsation...
Numerical simulation of the migration of hot gases in open vertical shaft (2008)
The problem associated with the migration of hot gases in open vertical shaft has been numerically investigated. Model predictions based on the same experimental conditions have shown to yield good...
Three-dimensional two-fluid model and population balance equation is presented to treat the complex hydrodynamics and thermomechanical processes under various bubbly flow conditions. The class...
Tian, Z, Inthavong, K, Tu, J, Yeoh, G
This paper presents a numerical study of a dilute gas-particle flow in a 90° bend by employing a Lagrangian particle-tracking model combined with a particle-wall collision model and a stochastic...
Fundamental consideration of wall heat partition of vertical subcooled boiling flows (2008)
Yeoh, G, Cheung, S, Tu, J, Ho, M
Improved wall heat flux partitioning accounting sliding bubbles and a mechanistic model that incorporates the fundamental consideration of bubble frequency during low-pressure subcooled flow boiling...
Bubble departure frequency in forced convective subcooled boiling flow (2008)
Situ, R, Ishii, M, Hibiki, T, Tu, J, Yeoh, G, Mori, M
Forced convective subcooled boiling flow experiments were conducted in a vertical upward annular channel. Water was used as the testing fluid, and the tests were performed at atmospheric pressure. A...
Population balance models for subcooled boiling flows (2008)
Purpose: This study aims to examine both the population balance approach based on the MUltiple SIze Group (MUSIG) model and the average bubble number density transport equation (ABND) model for 3D,...
Two population balance approaches based on the MUltiple-SIze-Group (MUSIG) model and one-group average bubble number density (ABND) model for handling the bubble size distribution of gas-liquid...
Numerical studies of indoor airflow and particle dispersion by large Eddy simulation (2007)
Tian, Z, Tu, J, Yeoh, G, Yuen, R
The indoor airflow and contaminant particle concentration in two geometrically different rooms have been investigated using the Large Eddy Simulation (LES) technique based on Renormalization Group...
Numerical modelling and validation of gas-particle flow in an in-line tube bank (2007)
This paper presents a numerical study of dilute gas-particle flows in an in-line tube bank. The physical characteristics of the particle-wall collisions and their contributions to particle phase flow...
To model the spatial evolution of the geometrical structure of the gas bubbles in isothermal vertical bubbly flow conditions, the population balance approach has been employed and merged with the...
CFD studies of indoor airflow and contaminant particle transportation (2007)
This article presents a numerical study of indoor airflows and contaminant particle transportation in three ventilated rooms. The realizable k - epsilon model is employed to model the air-phase...
Computational fluid graphics - a practical approach (2007)
A senior level undergraduate and graduate textbook for a wide audience of engineering students taking a first course in CFD or Computer Aided Engineering. Fully course matched, with the most...
Flow instability prediction in low-pressure subcooled boiling flows using CFD codes (2006)
A proposed model for low pressure subcooled boiling flow was incorporated into the safety reactor code RELAP5/MOD3.2 to enhance the performance of the reactor code to predict the occurrence of the...
On the numerical study of contaminant particle concentration in indoor airflow (2006)
Tian, Z, Tu, J, Yeoh, G, Yuen, R
The application of three turbulence models-standard k-epsilon, re-normalization group (RNG) k-epsilon and RNG-based large eddy simulation (LES) model-to simulate indoor contaminant particle...
Numerical modelling of bubbly flows with and without heat and mass transfer (2006)
In this paper, modelling gas-liquid bubbly flows is achieved by the introduction of a population balance equation combined with the three-dimensional two-fluid model. For gas-liquid bubbly flows...
Two-fluid and population balanace models for subcooled boiling flow (2006)
Population balance equations combined with a three-dimensional two-fluid model are employed to predict subcooled boiling flow at low pressure in a vertical annular channel. The MUSIG...
On population balance approach for subcooled boiling flow prediction (2005)
Tu, J, Yeoh, G, Park, G, Kim, M
The capability of using the population balance approach combined with a three-dimensional two-fluid model for predicting subcooled boiling flow is investigated. Experiments were conducted to study...
Numerical simulation and validation of dilute gas-particle flow over a backward-facing step (2005)
The physical characteristics of dilute gas-particle flows over a backward-facing step geometry are investigated. An investigation is performed to assess the performance of two computational...
Thermal-hydrodynamic modeling of bubbly flows with heat and mass transfer (2005)
A three-dimensional (3-D) two-fluid model coupled with the population balance equation is used to predict bubbly flows with the presence of heat and mass transfer processes, particularly on subcooled...
Population balance equations combined with a three-dimensional two-fluid model are employed to predict subcooled boiling flow at low pressure in a vertical annular channel. The MUltiple-SIze-Group...
A bubble mechanistic model for subcooled boiling flow predictions (2004)
Population balance equations combined with a three-dimensional two-fluid model are employed to predict subcooled boiling flow at low pressure in a vertical annular channel. The MUSIG...
Morsi, Y, Tu, J, Yeoh, G, Yang, W
In this paper the particle rebounding characteristics of a gas-particle flow over a cylindrical body and an in-line tube bundle arrangement is investigated. With the aid of both experimental and...
A three-dimensional two-fluid model to predict subcooled boiling flow at low pressure is presented. The model is adopted to investigate the two-phase flow and heat transfer characteristics in a...
On void fraction distribution during two-phase boiling flow instability (2004)
[article extract] Flow instability is an important consideration in the design of nuclear reactors because of the possible occurrence of flow excursion during a postulated accident. The present...
Population balance modelling for bubbly flows with heat and mass transfer (2004)
Population balance equations combined with a three-dimensional two-fluid model are employed to predict bubbly flows with the presence of heat and mass transfer processes. Subcooled boiling flow...
Zhang, B., Zhang, X., Guo, H. Y., Song, X. R., Cleghorn, G., West, M., ...
Numerical investigation of flow instability in a low-pressure subcooled boiling channel (2003)
A three-dimensional two-fluid model to predict subcooled boiling flow at low pressure is presented. The model is adopted to investigate the two-phase flow and heat transfer characteristics in a...
A three-dimensional two-fluid model to predict subcooled boiling flow at low pressure is presented. The model is adopted to investigate the two-phase flow and heat transfer characteristics in a...
Numerical simulation of turbulent wake flows behind two side-by-side cylinders (2003)
The formation and the convection of vortices behind two side-by-side cylinders are investigated using the large-eddy simulation (LES) model. Solution to the three-dimensional Navier-Stokes governing...
Effect of oncogenic virus on muscle differentiation.
Holtzer, H, Biehl, J, Yeoh, G, Meganathan, R, Kaji, A
Chick muscle cultures infected with wild-type Rous sarcoma virus form myotubes, but these myotubes vacuolate and by day 6 most have degenerated, leaving only large numbers of transformed...
Effect of oncogenic virus on muscle differentiation.
Holtzer, H, Biehl, J, Yeoh, G, Meganathan, R, Kaji, A
Chick muscle cultures infected with wild-type Rous sarcoma virus form myotubes, but these myotubes vacuolate and by day 6 most have degenerated, leaving only large numbers of transformed...