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.

Pin-fin shape and orientation effects on wall heat transfer predictions of gas turbine blade (2019)
Conference Proceeding
Effendy, M., Yao, Y., Yao, J., & Marchant, D. R. (2019). Pin-fin shape and orientation effects on wall heat transfer predictions of gas turbine blade. In EXPLORING RESOURCES, PROCESS AND DESIGN FOR SUSTAINABLE URBAN DEVELOPMENT: Proceedings of the 5th International Conference on Engineering, Technology, and Industrial Application (ICETIA) 2018 (020008). https://doi.org/10.1063/1.5112392

Turbine blades are often exposed to the ‘hot’ gas environment and thus it is essential to apply effective cooling technique to extend the blade lifetime. In the present work, wall heat transfer characteristics inside a blade trailing-edge coolant pas... Read More about Pin-fin shape and orientation effects on wall heat transfer predictions of gas turbine blade.

Surface flow modification of aerofoils for automative racing car application (2019)
Presentation / Conference
Allarton, R., Cliford, T., Hitchborn, B., Parker, L., Shaw, J., & Yao, J. (2019, June). Surface flow modification of aerofoils for automative racing car application. Paper presented at The Eighth International Symposium on Physics of Fluid (ISPF8), Xian, China

An aerofoil which is commonly used in aerospace engineering to produce lift is also employed in the motorsport industry to produce downforce for improving traction in cornering. This paper investigates aerofoil surface modification through ‘golf ball... Read More about Surface flow modification of aerofoils for automative racing car application.

Assessment of stress-blended eddy simulation model for accurate prediction of three-straight-bladed vertical axis wind turbine performance (2019)
Presentation / Conference
Syawitri, T. P., Yao, Y., Yao, J., & Chandra, B. (2019, March). Assessment of stress-blended eddy simulation model for accurate prediction of three-straight-bladed vertical axis wind turbine performance. Paper presented at 54th 3AF International Conference on Applied Aerodynamics, Paris, France

The performance of a three-straight-bladed vertical axis wind turbine at low tip speed ratio has been evaluated by detached eddy simulation (DES) with stress-blended eddy simulation (SBES) turbulence model. Two grid topologies around the blades, i.e.... Read More about Assessment of stress-blended eddy simulation model for accurate prediction of three-straight-bladed vertical axis wind turbine performance.

CFD simulation of three-straight-bladed vertical axis wind turbine at low tip speed ratios (2018)
Presentation / Conference
Syawitri, T., Yao, Y., Chandra, B., & Yao, J. (2018, October). CFD simulation of three-straight-bladed vertical axis wind turbine at low tip speed ratios. Paper presented at International Conference of Global Warming and Climate Change 2018, Bangkok, Thailand

This paper presents computational fluid dynamics (CFD) simulations of a three-straight-bladed Vertical Axis Wind Turbine (VAWT) operating at a wind speed of 9 m/s and low Tip Speed Ratio (TSR) ranging from 1.44 to 3.3. The turbine blade has NACA 0021... Read More about CFD simulation of three-straight-bladed vertical axis wind turbine at low tip speed ratios.

Zeolite supported platinum nanoparticles for small organic molecule oxidation and reduction in fuel cell using impregnation (2018)
Presentation / Conference
Yao, J., & Yao, Y. (2018, September). Zeolite supported platinum nanoparticles for small organic molecule oxidation and reduction in fuel cell using impregnation. Paper presented at The 2018 E-MRS Fall Meeting and Exhibit, Warsaw University of Technology, Poland

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.

Zeolite supported Pd electrocatalyst nano-particle characterization (2017)
Presentation / Conference
Yao, J., & Yao, Y. (2017, July). Zeolite supported Pd electrocatalyst nano-particle characterization. Paper presented at ANM2017 Int conf. on advanced nano materials, Aveiro, Portugal

Palladium (Pd) as one of platinum (Pt) group metals has attracted significant attentions since it has shown good activities for hydrogen reaction (HOR) and oxygen reduction reaction (ORR) in fuel cell application and high solubility and mobility... Read More about Zeolite supported Pd electrocatalyst nano-particle 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.

Ex-situ exafs investigation of zeolite supported pt electrocatalyst structure (2017)
Presentation / Conference
Yao, J., & Yao, Y. (2017, June). Ex-situ exafs investigation of zeolite supported pt electrocatalyst structure. Paper presented at The Seventh International Symposium on Physics of Fluids (ISPF7), Guiyang, China

The electrochemical performance of zeolite supported 1.5 wt% Pt electrocatalyst in fuel cell has been discussed in previous studies [1, 2]. This work will focus on investigating the influence of Pt loading and Pt deposition methods on Pt electrochemi... Read More about Ex-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.

Numerical investigation of wavy-annular airwater two-pase flow in a small horizontal pipe (2016)
Presentation / Conference
Arini, A., Yao, J., Gordon, T., & Yao, Y. (2016, September). Numerical investigation of wavy-annular airwater two-pase flow in a small horizontal pipe. Paper presented at EFCM11 11th European Fluid Mechanics Conference, Seville, Spain

This study has been carried out using Computational Fluid Dynamics (CFD) to investigate the annular two phase flow behavior that flow pattern has some desirable features for renewable energy system application. The circumferential distribution of t... Read More about Numerical investigation of wavy-annular airwater two-pase flow in a small horizontal pipe.

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.