Skip to main content

Research Repository

Advanced Search

All Outputs (183)

CFD prediction and experimental measurement of blade water coverage in a diesel turbocharger (2012)
Journal Article
Yao, J., & Yao, Y. (2012). CFD prediction and experimental measurement of blade water coverage in a diesel turbocharger. Modelling and Simulation in Engineering, 2012, 1-11. https://doi.org/10.1155/2012/789563

A turbocharger unit for diesel engine is often equipped with a built-in online water washing system and its performance is not always satisfactory because of efficiency declination due to deposit accumulated on blade surfaces not being washed away. I... Read More about CFD prediction and experimental measurement of blade water coverage in a diesel turbocharger.

Effect of jet inclination angle and hole exit shape on vortical flow structures in low-reynolds number jet in cross-flow (2012)
Journal Article
Yao, Y., Maidi, M., & Yao, J. (2012). Effect of jet inclination angle and hole exit shape on vortical flow structures in low-reynolds number jet in cross-flow. Modelling and Simulation in Engineering, 2012, 1-7. https://doi.org/10.1155/2012/632040

Numerical studies have been performed to visualize vortical flow structures emerged from jet cross-flow interactions. A single square jet issuing perpendicularly into a cross-flow was simulated first, followed by two additional scenarios, that is, in... Read More about Effect of jet inclination angle and hole exit shape on vortical flow structures in low-reynolds number jet in cross-flow.

Flow topology and secondary separation modelling at crossing shock wave/turbulent boundary layer interaction conditions (2012)
Journal Article
Salin, A., Yao, Y., & Zheltovodov, A. (2012). Flow topology and secondary separation modelling at crossing shock wave/turbulent boundary layer interaction conditions. International Journal of Aerospace Innovations, 4(1-2), 13-28. https://doi.org/10.1260/1757-2258.4.1-2.13

Steady RANS modelling has been carried out for a symmetrical double-sharp-fin configuration with an inclination angle 15°, Mach 3.92 and Reynolds number Reδ = 3.08 x 105. Grid refinement and turbulence model influences using ω-based Reynolds Stress m... Read More about Flow topology and secondary separation modelling at crossing shock wave/turbulent boundary layer interaction conditions.

Flow topology of symmetric crossing shock wave boundary layer interactions (2012)
Book Chapter
Salin, A., Yao, Y., Lo, S. H., & Zheltovodov, A. A. (2012). Flow topology of symmetric crossing shock wave boundary layer interactions. In K. Kontis (Ed.), 28th International Symposium on Shock Waves (425-431). UK: Springer. https://doi.org/10.1007/978-3-642-25685-1_64

Three-dimensional crossing-shock-wave and turbulent boundary-layer interactions can generate intense wall heat flux rates, high pressure levels, and large-scale flow separations on high-speed vehicle surfaces. To reproduce such complex flow physics,... Read More about Flow topology of symmetric crossing shock wave boundary layer interactions.

Shock induced separating flows in scramjet intakes (2012)
Journal Article
Yao, Y., Zheng, Y., & Rincon, D. (2012). Shock induced separating flows in scramjet intakes. International Journal of Modern Physics: Conference Series, 19(73), https://doi.org/10.1142/S2010194512008604

Shock induced separating flows in a scramjet intake has been studied by using a computational fluid dynamics approach. A configuration of scramjet intake geometry consisting of two exterior compression ramps, followed by a subsequent inlet and interi... Read More about Shock induced separating flows in scramjet intakes.

Improved one-dimensional unsteady modeling of thermally choked ram accelerator in subdetonative velocity regime (2011)
Journal Article
Bengherbia, T., Yao, Y., Bauer, P., Giraud, M., & Knowlen, C. (2011). Improved one-dimensional unsteady modeling of thermally choked ram accelerator in subdetonative velocity regime. Journal of Applied Mechanics, 78(5), https://doi.org/10.1115/1.4004327

The subdetonative propulsion mode using thermal choking has been studied with a one-dimensional (1D) real gas model that included projectile acceleration. Numerical results from a control volume analysis that accounted for unsteady flow effects estab... Read More about Improved one-dimensional unsteady modeling of thermally choked ram accelerator in subdetonative velocity regime.

Numerical study of gaseous reactive flow over a ram accelerator projectile in subdetonative velocity regime (2011)
Journal Article
Bengherbia, T., Yao, Y., Bauer, P., & Knowlen, C. (2011). Numerical study of gaseous reactive flow over a ram accelerator projectile in subdetonative velocity regime. European Physical Journal: Applied Physics, 55(1), 11102 -11113. https://doi.org/10.1051/epjap/2011100087

Computational fluid dynamics solutions of the Reynolds Averaged Navier-Stokes equations have been used to numerically predict the thrust of a thermally choked ram accelerator in subdetonative velocity regime. Studies were focused on a projectile oper... Read More about Numerical study of gaseous reactive flow over a ram accelerator projectile in subdetonative velocity regime.

Computational study of hole shape effect on film cooling performance (2011)
Journal Article
Yao, J., & Yao, Y. (2011). Computational study of hole shape effect on film cooling performance. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 225(4), 505-519. https://doi.org/10.1177/0957650911399013

Film cooling effectiveness has been studied by using a computational approach based on solving the Reynolds-averaged Navier-Stokes equations. A wind tunnel test configuration is considered with a total of four cooling hole geometries as a cylindrical... Read More about Computational study of hole shape effect on film cooling performance.

Direct numerical simulation of single and multiple square jets in cross-flow (2011)
Journal Article
Yao, Y., & Maidi, M. (2011). Direct numerical simulation of single and multiple square jets in cross-flow. Journal of Fluids Engineering, 133(3), 031201. https://doi.org/10.1115/1.4003588

Direct numerical simulations (DNSs) have been carried out for single and multiple square jets issuing normally into a cross-flow, with the primary aim of studying the flow structures and interaction mechanisms associated with the jet in cross-flow (J... Read More about Direct numerical simulation of single and multiple square jets in cross-flow.

Validation study of convective airflow in an empty room (2011)
Presentation / Conference
Horikiri, K., & Yao, Y. (2011, March). Validation study of convective airflow in an empty room. Paper presented at 2nd INEEE Conference: Energy, Environment, Devices, Systems, Communications, Computers (EEDSCC '11), Venice, Italy

Numerical simulation of convective airflow in an empty room (2011)
Journal Article
Horikiri, K., Yao, Y., & Yao, J. (2011). Numerical simulation of convective airflow in an empty room. International Journal of Energy and Environment, 5(1), 574-581

Numerical simulation of airflow inside an empty room has been carried out for a forced convection, a natural convection and a mixed convection respectively, by using a computational fluid dynamics approach of solving the Reynolds-averaged Navier-Stok... Read More about Numerical simulation of convective airflow in an empty room.

A review of novel turbocharger concepts for enhancements in energy efficiency (2011)
Journal Article
Kusztelan, A., Yao, Y., Marchant, D., & Wang, Y. (2011). A review of novel turbocharger concepts for enhancements in energy efficiency. https://doi.org/10.5383/ijtee.02.02.003

Turbochargers are extensively used throughout the automotive industry as they can enhance the output of an internal combustion (IC) engine without the need to increase its cylinder capacity. The application of such a mechanical device enables automot... Read More about A review of novel turbocharger concepts for enhancements in energy efficiency.