Aerothermal Performance of Shroudless Turbine Blade Tips with Relative Casing Movement Effects [PDF]
, 2015 Qualitatively different heat transfer characteristics between a transonic blade tip and a subsonic one have recently been discovered. High-resolution experimental data can be acquired for blade-tip heat transfer research using a high-speed linear cascade.
A. S. Virdi +10 more
core +1 more source
Influence of the Tip Clearance on the Aeroelastic Characteristics of a Last Stage Steam Turbine
Applied Sciences, 2019 In this paper, the tip clearance effects on the aeroelastic stability of a last-stage steam turbine model are investigated. Most of the unsteady aerodynamic work contributing to flutter of the long blades of the last-stage of a steam turbine is done near
Tianrui Sun +3 more
doaj +1 more source
Three-dimensional analysis of the Pratt and Whitney alternate design SSME fuel turbine [PDF]
The three dimensional viscous time-mean flow in the Pratt and Whitney alternate design space shuttle main engine fuel turbine is simulated using the average passage Navier-Stokes equations.
Adamczyk, J. J. +2 more
core +1 more source
Effect of a splitter plate on the dynamics of a vortex pair [PDF]
, 2011 An experimental and numerical study was performed to investigate and compare the behavior of a counter-rotating vortex pair and a single vortex in the vicinity of a wall.
Blanquart, Guillaume +2 more
core +2 more sources
A Review of Tip Clearance in Propeller, Pump and Turbine
Energies, 2018 Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj +1 more source
Numerical studies towards practical large-eddy simulation [PDF]
, 2007 Large-eddy simulation developments and validations are presented for an improved simulation of turbulent internal flows. Numerical methods are proposed according to two competing criteria: numerical qualities (precision and spectral characteristics), and
C. Bogey +20 more
core +4 more sources
Navier-Stokes analysis of radial turbine rotor performance [PDF]
An analysis of flow through a radial turbine rotor using the three-dimensional, thin-layer Navier-Stokes code RVC3D is described. The rotor is a solid version of an air-cooled metallic radial turbine having thick trailing edges, shroud clearance, and ...
Larosiliere, L. M.
core +1 more source
Uncertainty quantification of leakages in a multistage simulation and comparison with experiments [PDF]
, 2016 The present paper presents a numerical study of the impact of tip gap uncertainties in a multistage turbine. It is well known that the rotor gap can change the gas turbine efficiency but the impact of the random variation of the clearance height has not ...
Ahlfeld, R +3 more
core
Hydrodynamic Performance of Toroidal Propeller Based on Detached Eddy Simulation Method
Journal of Marine Science and EngineeringToroidal propellers hold significant potential as underwater propulsion systems compared to traditional propellers, primarily due to their unique shape, which effectively reduces and minimizes hydrodynamic noise and enhances structural stability and ...
Pei Xu +3 more
doaj +1 more source
Stellar Double Coronagraph: a multistage coronagraphic platform at Palomar observatory [PDF]
, 2016 We present a new instrument, the "Stellar Double Coronagraph" (SDC), a flexible coronagraphic platform. Designed for Palomar Observatory's 200" Hale telescope, its two focal and pupil planes allow for a number of different observing configurations ...
Bartos, Randall +8 more
core +3 more sources