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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.

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.

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.

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.

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.

Experimental study of characteristics of bimetallic Pt-Fe nano-particle fuel cell electrocatalyst (2015)
Journal Article
Yao, J., & Yao, Y. (2015). Experimental study of characteristics of bimetallic Pt-Fe nano-particle fuel cell electrocatalyst. Renewable Energy, 81, 182-196. https://doi.org/10.1016/j.renene.2015.03.031

© 2015 Elsevier Ltd. The characteristics of 1.5wt% Platinum (Pt) loading on Fe incorporated Y zeolite (Pt-Fe/Y zeolite) nano-electrocatalysts have been experimentally studied by the extended X-ray adsorption fine structure (EXAFS) and cyclic voltamme... Read More about Experimental study of characteristics of bimetallic Pt-Fe nano-particle fuel cell electrocatalyst.

Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture (2015)
Journal Article
Horikiri, K., Yao, Y., & Yao, J. (2015). Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture. Energy and Buildings, 88, 303-315. https://doi.org/10.1016/j.enbuild.2014.12.015

© 2014 Elsevier B.V. All rights reserved. Indoor thermal environment of a 3-D ventilated room was studied by computational fluid dynamics to understand correlations between heat generation, ventilation velocity and thermal sensation indices. The exis... Read More about Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture.

Direct numerical simulation of a turbulent flow over an axisymmetric hill (2014)
Journal Article
Castagna, J., Yao, Y., & Yao, J. (2014). Direct numerical simulation of a turbulent flow over an axisymmetric hill. Computers and Fluids, 95, 116-126. https://doi.org/10.1016/j.compfluid.2014.02.014

Direct numerical simulation (DNS) of a turbulent flow over an axisymmetric hill has been carried out to study the three-dimensional flow separation and reattachment that occur on the lee-side of the geometry. The flow Reynolds number is Re H=6500, ba... Read More about Direct numerical simulation of a turbulent flow over an axisymmetric hill.

Modelling conjugate flow and heat transfer in a ventilated room for indoor thermal comfort assessment (2014)
Journal Article
Horikiri, K., Yao, Y., & Yao, J. (2014). Modelling conjugate flow and heat transfer in a ventilated room for indoor thermal comfort assessment. Building and Environment, 77, 135-147. https://doi.org/10.1016/j.buildenv.2014.03.027

Conjugate natural and forced convection heat transfers in a domestic model room of finite-thickness walls and a heat source have been numerically studied. A 2-D non-ventilated square model room with a heat source is investigated at first for conditio... Read More about Modelling conjugate flow and heat transfer in a ventilated room for indoor thermal comfort assessment.

Effect of mesh topologies on wall heat transfer and pressure loss prediction of a blade coolant passage (2013)
Journal Article
Effendy, M., Yao, Y., & Yao, J. (2013). Effect of mesh topologies on wall heat transfer and pressure loss prediction of a blade coolant passage. Applied Mechanics and Materials, 315, 216-220. https://doi.org/10.4028/www.scientific.net/AMM.315.216

This paper studies the effect of mesh topologies such as hybrid and structured meshes on the evaluation of wall heat transfer coefficient (HTC) and pressure loss of a blade cooling passage. An experimental model is chosen; it has five-row of stream w... Read More about Effect of mesh topologies on wall heat transfer and pressure loss prediction of a blade coolant passage.

Evaluation of wall heat transfer in blade trailing-edge cooling passage (2013)
Journal Article
Yao, Y., Effendy, M., & Yao, J. (2013). Evaluation of wall heat transfer in blade trailing-edge cooling passage. Applied Mechanics and Materials, 284-287, 738-742. https://doi.org/10.4028/www.scientific.net/AMM.284-287.738

Model configurations of a blade trailing-edge internal cooling passage with staggered elliptic pin-fins in streamwise and spanwise are adopted for numerical investigation using computational fluid dynamics (CFD). Grid refinement study is performed at... Read More about Evaluation of wall heat transfer in blade trailing-edge cooling passage.

Numerical study of unsteady airflow phenomena in a ventilated room (2012)
Journal Article
Horikiri, K., Yao, Y., & Yao, J. (2012). Numerical study of unsteady airflow phenomena in a ventilated room. Computational Thermal Sciences, 4(4), 317-333. https://doi.org/10.1615/ComputThermalScien.2012005093

Numerical simulation of airflow in an indoor environment has been carried out for forced, natural, and mixed convection modes, respectively, by using the computational fluid dynamics (CFD) approach of solving the Reynolds-averaged Navier-Stokes equat... Read More about Numerical study of unsteady airflow phenomena in a ventilated room.