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Numerical simulation and experimental investigation of the effect of three-layer annular coaxial shroud on gas-powder flow in laser cladding (2022)
Journal Article
Lyu, P., Jin, L., Yan, B., Zhu, L., Yao, J., & Jiang, K. (2022). Numerical simulation and experimental investigation of the effect of three-layer annular coaxial shroud on gas-powder flow in laser cladding. Journal of Manufacturing Processes, 84, 457-468. https://doi.org/10.1016/j.jmapro.2022.10.019

Laser cladding is a notable metal additive manufacturing (AM). The outstanding benefit of laser cladding is that the cladding process is more flexible and it can be completed in an open environment. However, oxidation phenomenon of active metals such... Read More about Numerical simulation and experimental investigation of the effect of three-layer annular coaxial shroud on gas-powder flow in laser cladding.

Transient CFD modelling of air–water two-phase annular flow characteristics in a small horizontal circular pipe (2022)
Journal Article
Yao, J., & Yao, Y. (2022). Transient CFD modelling of air–water two-phase annular flow characteristics in a small horizontal circular pipe. Fluids, 7(6), Article 191. https://doi.org/10.3390/fluids7060191

The liquid film formed around the inner walls of a small horizontal circular pipe often exhibits non-uniform distributions circumferentially, where the film is thinner at the top surface than the bottom one. Even with this known phenomenon, the probl... Read More about Transient CFD modelling of air–water two-phase annular flow characteristics in a small horizontal circular pipe.

Unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer (2022)
Journal Article
Yao, J., & Yao, Y. (2022). Unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer. Fluids, 7(6), Article 192. https://doi.org/10.3390/fluids7060192

Improving indoor air quality and energy consumption is one of the high demands in the building sector. In this study, unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer have been studied for three configurations o... Read More about Unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer.

Optimisation of straight plate upstream deflector for the performance enhancement of vertical axis wind turbine at low, medium and high regimes of tip speed ratios (2022)
Journal Article
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2022). Optimisation of straight plate upstream deflector for the performance enhancement of vertical axis wind turbine at low, medium and high regimes of tip speed ratios. Wind Engineering, 46(5), 1487-1510. https://doi.org/10.1177/0309524x221084980

Location and geometry optimisations of Straight Plate Upstream Deflector (SPUD) for performance enhancement of a three-straightbladed Vertical Axis Wind Turbine (VAWT) are carried out at three regimes of tip speed ratios (TSRs). Results analysis reve... Read More about Optimisation of straight plate upstream deflector for the performance enhancement of vertical axis wind turbine at low, medium and high regimes of tip speed ratios.

A review on the use of passive flow control devices as performance enhancement of lift-type vertical axis wind turbines (2022)
Journal Article
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2022). A review on the use of passive flow control devices as performance enhancement of lift-type vertical axis wind turbines. Wiley Interdisciplinary Reviews: Energy and Environment, 11(4), e435. https://doi.org/10.1002/wene.435

This article provides a comprehensive review about passive flow control devices (PFCDs) implemented in lift-type vertical axis wind turbine (LVAWT), focusing on the underlying flow physics mechanisms and to what extents they can improve the LVAWT per... Read More about A review on the use of passive flow control devices as performance enhancement of lift-type vertical axis wind turbines.

Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios (2021)
Journal Article
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2022). Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios. Sustainable Energy Technologies and Assessments, 49, Article 101779. https://doi.org/10.1016/j.seta.2021.101779

Optimisation of Gurney flap (GF) geometries mounted on a three-straight-bladed vertical axis wind turbine (VAWT) is evaluated with computational fluid dynamics (CFD) solution and Taguchi method, considering the blade rotating effect at three tip spee... Read More about Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios.

Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges (2020)
Journal Article
Syawitri, T. P., Yao, Y. F., Chandra, B., & Yao, J. (2021). Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges. Renewable Energy, 168, 247-269. https://doi.org/10.1016/j.renene.2020.12.045

Comparison study of unsteady Reynolds-averaged Navier-Stokes (URANS) and hybrid RANS-LES models is carried out for predicting the performance of three-straight-bladed vertical axis wind turbine operating within tip speed ratios (TSRs) ranges of (1.44... Read More about Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges.

Flow analysis in right-angled pipes with different geometric shapes and parameters for sludge discharge in slime shield machines measured using a CFD-DEM method (2020)
Journal Article
Chen, L., Liu, K., Yao, Y., Yao, J., Su, Z., & Luo, G. (2020). Flow analysis in right-angled pipes with different geometric shapes and parameters for sludge discharge in slime shield machines measured using a CFD-DEM method. International Journal for Computational Methods in Engineering Science and Mechanics, 21(5), 231-242. https://doi.org/10.1080/15502287.2020.1809554

Mud and gravel deposition often occurs in circulation systems of pumps. In this paper, a liquid-solid coupling method combining CFD and DEM is proposed to study two-phase flow behavior of water, The flow characteristics of water-clay mud and the moti... Read More about Flow analysis in right-angled pipes with different geometric shapes and parameters for sludge discharge in slime shield machines measured using a CFD-DEM method.

Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine (2020)
Journal Article
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2021). Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine. International Journal of Numerical Methods for Heat and Fluid Flow, 31(2), 655-673. https://doi.org/10.1108/HFF-09-2019-0689

Purpose: The aim of this paper is to assess the ability of a stress-blended eddy simulation (SBES) turbulence model to predict the performance of a three-straight-bladed vertical axis wind turbine (VAWT). The grid sensitivity study is conducted to ev... Read More about Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine.

The effect of gurney flap on flow characteristics of vertical axis wind turbine (2020)
Journal Article
Syawitri, T. P., Yao, Y. F., Yao, J., & Chandra, B. (2020). The effect of gurney flap on flow characteristics of vertical axis wind turbine. International Journal of Modern Physics B, 34(14n16), Article 2040107. https://doi.org/10.1142/S0217979220401074

Recently, the Gurney Flap (GF) has been used to improve the performance of Horizontal Axis Wind Turbine (HAWT) by enhancing its lift coefficient. Compared to HAWT, research on GF application for Vertical Axis Wind Turbine (VAWT) is very limited. More... Read More about The effect of gurney flap on flow characteristics of vertical axis wind turbine.

Surface flow modification of aerofoils for automotive racing car applications (2020)
Journal Article
Allarton, R., Yao, J., Clifford, T., Hitchborn, B., Parker, L. J., & Shaw, J. (2020). Surface flow modification of aerofoils for automotive racing car applications. International Journal of Modern Physics B, 34(14n16), https://doi.org/10.1142/s0217979220400962

An aerofoil commonly used in aerospace engineering to produce lift is also employed in the motor sport industry to produce downforce for improving traction during cornering. This paper investigates aerofoil surface modification through 'golf ball dim... Read More about Surface flow modification of aerofoils for automotive racing car applications.

Detached eddy simulation of blade trailing-edge cutback cooling performance at various ejection slot angles (2019)
Journal Article
Effendy, M., Yao, Y., Yao, J., & Marchant, D. R. (2019). Detached eddy simulation of blade trailing-edge cutback cooling performance at various ejection slot angles. International Journal of Heat and Fluid Flow, 80, Article 108487. https://doi.org/10.1016/j.ijheatfluidflow.2019.108487

© 2019 Elsevier Inc. Detached eddy simulation (DES) has been carried out to study a three-dimensional trailing-edge (TE) cutback turbine blade model with five rows of staggered circular pin-fin arrays inside the cooling passage, in order to evaluate... Read More about Detached eddy simulation of blade trailing-edge cutback cooling performance at various ejection slot angles.

Zeolite supported Pd electrocatalyst nanoparticle characterization (2018)
Journal Article
Yao, J., & Yao, Y. (2019). Zeolite supported Pd electrocatalyst nanoparticle characterization. International Journal of Hydrogen Energy, 44(1), 287-294. https://doi.org/10.1016/j.ijhydene.2018.02.110

© 2018 Hydrogen Energy Publications LLC A laboratory made 1.5 wt% Palladium (Pd) zeolite electrocatalyst is investigated using the Extended X-ray Adsorption Fine Structure (EXAFS) and Cyclic Voltammetry (CV) techniques to reveal Pd structure and resu... Read More about Zeolite supported Pd electrocatalyst nanoparticle characterization.

Optimization of air distribution mode coupled interior design for civil aircraft cabin (2018)
Journal Article
Pang, L., Li, P., Bai, L., Liu, D., Zhou, Y., & Yao, J. (2018). Optimization of air distribution mode coupled interior design for civil aircraft cabin. Building and Environment, 134, 131-145. https://doi.org/10.1016/j.buildenv.2018.02.019

The airflow distribution and thermal comfort of human beings in civil aircraft cabin are influenced by many factors such as the ventilation mode, ventilation air volume, and supply air temperature and so on. Among these factors, the choice of ventila... Read More about Optimization of air distribution mode coupled interior design for civil aircraft cabin.

En-situ EXAFS investigation of zeolite supported Pt electrocatalyst structure (2017)
Journal Article
Yao, J., & Yao, Y. (2017). En-situ EXAFS investigation of zeolite supported Pt electrocatalyst structure. Materials Technology, 32(14), 862-869. https://doi.org/10.1080/10667857.2017.1348013

© 2017 Informa UK Limited, trading as Taylor & Francis Group. Experimental investigation was carried out for Pt electrochemical performance and Pt particle size using 1.5 and 5 wt% Pt loading on zeolite electrocatalysts made by Pt(NH3)4(NO3)2 or Pt... Read More about En-situ EXAFS investigation of zeolite supported Pt electrocatalyst structure.

Zeolite supported palladium nanoparticle characterization for fuel cell application (2017)
Journal Article
Yao, J., & Yao, Y. (2017). Zeolite supported palladium nanoparticle characterization for fuel cell application. International Journal of Hydrogen Energy, 42(29), 18560-18567. https://doi.org/10.1016/j.ijhydene.2017.04.182

© 2017 Hydrogen Energy Publications LLC Palladium (Pd) has been widely used as a type of hydrogen storage material and has attracted much attention for fuel cell applications, due to its high solubility and mobility of hydrogen in Pd. In this study,... Read More about Zeolite supported palladium nanoparticle characterization for fuel cell application.

Modelling air and water two-phase annular flow in small horizontal pipe (2016)
Journal Article
Yao, J., Yao, Y., Arini, A., McIlwain, S., & Gordon, T. (2016). Modelling air and water two-phase annular flow in small horizontal pipe. International Journal of Modern Physics: Conference Series, 42, https://doi.org/10.1142/S2010194516601587

Numerical study using Computational Fluid Dynamics (CFD) has been carried out to investigate flow behaviours and underlying physical phenomena associated with air/water two-phase flow inside a small horizontal tube of an inner diameter 8.8mm. The bas... Read More about Modelling air and water two-phase annular flow in small horizontal pipe.

Investigation of zeolite supported platinum electrocatalyst for electrochemical oxidation of small organic species (2016)
Journal Article
Yao, J., & Yao, Y. (2016). Investigation of zeolite supported platinum electrocatalyst for electrochemical oxidation of small organic species. International Journal of Hydrogen Energy, 41(33), 14747-14757. https://doi.org/10.1016/j.ijhydene.2016.06.121

© 2016 Hydrogen Energy Publications LLC Zeolite supported Pt electrocatalysts, made by ion exchange method using Pt/Y type zeolite, have been investigated to determine Pt electrochemical activity of HCOOH and CH3OH oxidation using the cyclic voltamme... Read More about Investigation of zeolite supported platinum electrocatalyst for electrochemical oxidation of small organic species.

DES study of blade trailing edge cutback cooling performance with various lip thicknesses (2016)
Journal Article
Effendy, M., Yao, Y. F., Yao, J., & Marchant, D. R. (2016). DES study of blade trailing edge cutback cooling performance with various lip thicknesses. Applied Thermal Engineering, 99, 434-445. https://doi.org/10.1016/j.applthermaleng.2015.11.103

© 2015 Elsevier Ltd. All rights reserved. Three-dimensional detached-eddy simulation (DES) study has been carried out to evaluate the cooling performance of a trailing-edge cutback turbine blade with various lip thickness to slot height ratios (t/H).... Read More about DES study of blade trailing edge cutback cooling performance with various lip thicknesses.