State of the art turbomachinery flow analysis codes are not capable of predicting the viscous flow features within turbomachinery blade wakes. Until efficient 3D viscous flow analysis codes become a reality there is therefore a need for models which can describe the generation and transport of blade wakes and the mixing process within the wake. To address the need for experimental data to suppo...

With the demand for turbomachinery to operate at higher speeds, loads, and power, fluid film bearings that support turbomachinery must be capable of operating in these more demanding applications. Thrust bearings operating at high speeds and loads can experience high surface temperatures and thin fluid film thickness. Typically, babbitt (white metal) is the bearing lining material for most turb...

The objective of the Stanford ASC project is to develop a framework able to perform multi-disciplinary, integrated simulations on massively parallel platforms. 4 This paper focuses on the turbomachinery computation and, in particular, on the physics of interaction of different turbomachinery components in the engine. Typical flow features such as tip and horse-shoe vortices as well as blade wak...

Turbomachinery Advisor with Petrobras E&P Business Unit, in Rio de Janeiro, Brazil. He has been in the oil and gas industry for 28 years. Mr. Miranda is responsible for the technical support to existing machinery operations, as well as for conceptual design, specification, selection, and shop test acceptance of turbomachinery. His background includes comprehensive evaluation of energy and compr...

The designers of radial turbomachinery need detailed information on the impact side chamber flow axial thrust and torque. A previous paper investigated centripetal through narrow rotor–stator cavities compared thrust, rotor torque pressure distribution to case without through-flow. Consequently, this extends range centrifugal through-flow as it may occur in hub turbomachinery. chosen operating ...

The potential for improved performance of wave rotor cycles through the use of passage height variation is examined. A Quasi-one-dimensional CFD code with experimentally validated loss models is used to determine the flowfield in the wave rotor passages. Results indicate that a carefully chosen passage height profile can produce substantial performance gains. Numerical performance data are pres...

A coupling method based on the overset grid approach has been successfully developed to couple multi-copies of a massively-parallel unstructured compressible LES solver AVBP for turbomachinery applications. As proper LES predictions require minimizing artificial dissipation as well as dispersion of turbulent structures, the numerical treatment of the moving interface between stationary and rota...

Engineer of the Turbomachinery Laboratory at Mitsubishi Heavy Industries, Ltd., in Takasago, Japan. He has been involved in the design and development of turbomachinery compressors and expanders as well as combustors and chemical reactors. He is currently engaged in aerodynamic design and testing of special purpose turbomachinery. Mr. Yagi holds B.S. and M.S. degrees from the University of Toky...

Abstract Fast response pressure-sensitive paint (PSP) allows optical measurements of pressure fluctuations on a surface with high spatial and temporal resolution. This technique is evaluated for aeroacoustic inside an wind tunnel (AWT). The AWT test rig especially designed investigating the excitation propagation sound under conditions typical turbomachinery. aim this work to compare results to...