All Outputs (138)

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.

Large-eddy simulation of shock-induced flow separation control using SparkJet concept (2016)
Presentation / Conference
Yang, G., Yao, Y., Fang, J., Gan, T., & Lu, L. (2016, January). Large-eddy simulation of shock-induced flow separation control using SparkJet concept. Paper presented at 54th AIAA Aerospace Sciences Meeting, San Diego, California, USA

Large-Eddy Simulation (LES) of shock-wave/boundary layer interactions (SWBLI) with SparkJet control technique is carried out in this paper. The base flow is an oblique shock-wave generated by an 8°wedge impinging onto a spatially-developing Mach 2.3... Read More about Large-eddy simulation of shock-induced flow separation control using SparkJet concept.

Numerical investigation on two streamline-traced busemann inlet-isolators (2016)
Presentation / Conference
Xing, F., Xiaoyuan, F., Can, L., & Yao, Y. (2016, January). Numerical investigation on two streamline-traced busemann inlet-isolators. Paper presented at 54th AIAA Aerospace Sciences Meeting, San Diego, California, USA

This paper presents a computational fluid dynamics (CFD) study of flow characteristics within three-dimensional Busemann inlet with isolator models. The primary aim of the study was to compare various performances between two streamline-traced inlets... Read More about Numerical investigation on two streamline-traced busemann inlet-isolators.

Multistep simulation for three-dimensional ice accretion on an aircraft wing (2016)
Presentation / Conference
Huang, J., Cao, Y., Yao, Y., & Yao, J. (2016, January). Multistep simulation for three-dimensional ice accretion on an aircraft wing. Paper presented at 54th AIAA Aerospace Sciences Meeting, San Diego, California

A simplified icing model combined with Eulerian two-phase flow theory has been proposed and the method was employed for direct simulation of ice accretion occurred on an aircraft wing. An innovative wall boundary condition treatment has been proposed... Read More about Multistep simulation for three-dimensional ice accretion on an aircraft wing.

An improved local remeshing algorithm for moving boundary problems (2016)
Journal Article
Zheng, J., Chen, J., Zheng, Y., Yao, Y., Li, S., & Xiao, Z. (2016). An improved local remeshing algorithm for moving boundary problems. Engineering Applications of Computational Fluid Mechanics, 10(1), 403-426. https://doi.org/10.1080/19942060.2016.1174888

© 2016 The Author(s). Three issues are tackled in this study to improve the robustness of local remeshing techniques. Firstly, the local remeshing region (hereafter referred to as ‘hole’) is initialized by removing low-quality elements and then conti... Read More about An improved local remeshing algorithm for moving boundary problems.

Direct numerical simulation of supersonic turbulent flows around a tandem expansion-compression corner (2015)
Journal Article
Zheltovodov, A. A., Fang, J., Yao, Y., Li, Z., & Lu, L. (2015). Direct numerical simulation of supersonic turbulent flows around a tandem expansion-compression corner. Physics of Fluids, 27(12), 125104. https://doi.org/10.1063/1.4936576

© 2015 AIP Publishing LLC. The M = 2.9 supersonic turbulent flows over a tandem expansion-compression corner configuration with a sharp deflection angle of 25° at three Reynolds numbers Reδ = 20 000, 40 000, and 80 000 were studied by using direct nu... Read More about Direct numerical simulation of supersonic turbulent flows around a tandem expansion-compression corner.

Proton modified Pt zeolite fuel cell electrocatalysts (2015)
Book Chapter
Yao, J., Yao, Y., & Mirzaii, H. (2015). Proton modified Pt zeolite fuel cell electrocatalysts. In A. Sayigh (Ed.), Renewable Energy in the Service of Mankind Vol I (173-182). Springer. https://doi.org/10.1007/978-3-319-17777-9_16

© Springer International Publishing Switzerland 2015. NaY zeolite has been selected as a suitable material to host 1.5 wt.% platinum (Pt) loading on zeolite using ion-exchange methods of Pt(NH3)4(NO3)2 without excess NH4NO3 nitrate and Pt(NH3)4(NO3)2... Read More about Proton modified Pt zeolite fuel cell electrocatalysts.

Large-eddy simulation of a three-dimensional shock-wave/turbulent boundary layer interaction of a single-fin (2015)
Presentation / Conference
Fang, J., Yao, Y., Zheltovodov, A. A., & Lu, L. (2015, September). Large-eddy simulation of a three-dimensional shock-wave/turbulent boundary layer interaction of a single-fin. Paper presented at UKTC Annual Workshop, Southampton, UK

The three-dimension (3D) shock-wave/turbulent boundary layer interaction (SWTBLI) raised from a hypersonic flow passing a single-fin at Mach 5 is investigated i by using LES. The performed LES has demonstrated very good agreements with available expe... Read More about Large-eddy simulation of a three-dimensional shock-wave/turbulent boundary layer interaction of a single-fin.

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.

CFD of air/water two-phase flow in small horizontal pipe (2015)
Presentation / Conference
Yao, J., & Yao, Y. (2015, July). CFD of air/water two-phase flow in small horizontal pipe. Paper presented at The First Chinese International Conference on CFD, Mianyang, China

Computational Fluid Dynamics (CFD) has been applied to investigate air/water two-phase flow characteristics in an 8.8mm I.D small horizontal pipe. Simulation has successfully predicted water film thickness using newly developed user defined wave func... Read More about CFD of air/water two-phase flow in small horizontal pipe.

DNS of transitional and turbulent flow simulations (2015)
Presentation / Conference
Yao, Y., & Zheng, Y. (2015, July). DNS of transitional and turbulent flow simulations. Presented at The First Chinese International Conference on CFD, Mianyang, China

An in-house direct numerical simulation (DNS) code SBLI has been developed and used extensively for high-performance computation (HPC) of transitional and turbulent flows, most related to shock/boundary-layer interaction problems. The code has also p... Read More about DNS of transitional and turbulent flow simulations.

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.

Assessment of the low-dissipation monotonicity-preserving scheme in a series of DNS of shock-wave/turbulent boundary layer interactions (2015)
Presentation / Conference
Fang, J., Yao, Y., & Lu, L. (2015, January). Assessment of the low-dissipation monotonicity-preserving scheme in a series of DNS of shock-wave/turbulent boundary layer interactions. Paper presented at The 9th International Conference on Computational Physics (ICCP9), Singapore

The seventh-order low-dissipation monotonicity-preserving scheme developed by Fang et al. (Journal of Scientific Computing, 2013, 56:67-95) was assessed in direct numerical simulations (DNS) of isotropic turbulence and channel flow. The influence of... Read More about Assessment of the low-dissipation monotonicity-preserving scheme in a series of DNS of shock-wave/turbulent boundary layer interactions.

Mixing flow characteristics for a transverse sonic jet injecting into a supersonic crossflow (2015)
Presentation / Conference
Khali, E. H., & Yao, Y. (2015, January). Mixing flow characteristics for a transverse sonic jet injecting into a supersonic crossflow. Paper presented at AIAA 2015 Sci-Tech conference, Kissimmee, Florida, USA

Detached-eddy simulation (DES) of a sonic jet flow issuing perpendicularly into a supersonic crossflow is presented. The supersonic boundary layer flow has conditions of incoming Mach number 1.6 and Reynolds number Reδ 1.08×105, based on the free-str... Read More about Mixing flow characteristics for a transverse sonic jet injecting into a supersonic crossflow.

Large-eddy simulation of a three-dimensional hypersonic shock wave turbulent boundary layer interaction of a single fin (2015)
Presentation / Conference
Fang, J., Yao, Y., Zheltovodov, A. A., & Lu, L. (2015, January). Large-eddy simulation of a three-dimensional hypersonic shock wave turbulent boundary layer interaction of a single fin. Paper presented at AIAA 2015 Sci-Tech conference, Kissimmee, Florida, USA

The large-eddy simulation (LES) of a hypersonic flow passing a single-fin at Mach 5 and Re∞=3.7×107/m was conducted and the three-dimensional (3D) shock wave/turbulent boundary layer interaction (SWTBLI) was studied in the present paper. This is prob... Read More about Large-eddy simulation of a three-dimensional hypersonic shock wave turbulent boundary layer interaction of a single fin.

Equations of state implementation for 1-D modelling of performance in ram accelerator thermally choked propulsion mode (2015)
Journal Article
Bauer, P., Bengherbia, T., Knowlen, C., Bruckner, A., Yao, Y., & Giraud, M. (2015). Equations of state implementation for 1-D modelling of performance in ram accelerator thermally choked propulsion mode. International Journal of Engineering Systems Modelling and Simulation, 7(2), 71-79. https://doi.org/10.1504/IJESMS.2015.068650

© 2015 Inderscience Enterprises Ltd. This paper presents advancement on one-dimensional (1-D) unsteady modelling of a ram accelerator (RAMAC) in the sub-detonative velocity regime by including real-gas equations of state (EoS) in order to account for... Read More about Equations of state implementation for 1-D modelling of performance in ram accelerator thermally choked propulsion mode.

On the reliability of reynolds-averaged navier stokes prediction of mean flow characteristics of a rectangular turbulent jet in crossflow (2014)
Journal Article
Khali, E., Yao, Y. F., Khali, E. H., & Yao, Y. (2014). On the reliability of reynolds-averaged navier stokes prediction of mean flow characteristics of a rectangular turbulent jet in crossflow. American Journal of Applied Sciences, 11(9), 1645-1658. https://doi.org/10.3844/ajassp.2014.1645.1658

© 2014 Khali and Yao. A jet of fluid discharging into a cross stream, also known as Jet In Crossflow (JICF), has received many experimental and numerical investigations. In addition to the fundamental understanding of three-dimensional mixing and she... Read More about On the reliability of reynolds-averaged navier stokes prediction of mean flow characteristics of a rectangular turbulent jet in crossflow.

Direct numerical simulation of supersonic flows passing a backward step (2014)
Presentation / Conference
Yao, Y., Fang, J., Zheltovodov, A. A., & Lu, L. (2014, September). Direct numerical simulation of supersonic flows passing a backward step. Presented at UK Turbulence Consortium Workshop, Imperial College, London

The Mach 2.9 supersonic turbulent flow over an expansion-compression corner with a sharp deflection angle of 25° at three Reynolds numbers Re_δ=20000, Re_δ=40000 and Re_δ=80000 were studied by using a recently developed direct numerical simulation (... Read More about Direct numerical simulation of supersonic flows passing a backward step.

Investigation of low-dissipation monotonicity-preserving scheme for direct numerical simulation of compressible turbulent flows (2014)
Journal Article
Fang, J., Yao, Y., Li, Z., & Lu, L. (2014). Investigation of low-dissipation monotonicity-preserving scheme for direct numerical simulation of compressible turbulent flows. Computers and Fluids, 104, 55-72. https://doi.org/10.1016/j.compfluid.2014.07.024

© 2014 Elsevier Ltd. The influence of numerical dissipation on direct numerical simulation (DNS) of decaying isotropic turbulence and turbulent channel flow is investigated respectively by using the seventh-order low-dissipation monotonicity-preservi... Read More about Investigation of low-dissipation monotonicity-preserving scheme for direct numerical simulation of compressible turbulent flows.

Proton modified Pt zeolite fuel cell electrocatalysts (2014)
Presentation / Conference
Yao, J., Yao, Y., & Mirzaii, H. (2014, August). Proton modified Pt zeolite fuel cell electrocatalysts. Paper presented at World Renewable Energy Congress WREC XIII, London, UK

NaY Zeolite is selected as a suitable material to host 1.5 wt% Platinum (Pt) loading on zeolite using ion exchange method (a) Pt(NH3)4(NO3)2 without excess NH4NO3 nitrate and (b) Pt(NH3)4(NO3)2 with excess NH4NO3 nitrate. The structure/reactivity rel... Read More about Proton modified Pt zeolite fuel cell electrocatalysts.