Results 31 to 40 of about 216,510 (210)
A Review of Turbine and Compressor Aerodynamic Forces in Turbomachinery
Lubricants, 2023 Aerodynamic forces due to blade-tip clearance eccentricity are a known destabilizing source in rotating machinery with unshrouded impellers. Dynamic forces also appear in shrouded impellers, due to changes in the pressure in the gap between the impeller ...
Luis San Andrés
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EFFECT OF FORCED ROTATING VANELESS DIFFUSERS ON CENTRIFUGAL COMPRESSOR STAGE PERFORMANCE [PDF]
Journal of Engineering Science and Technology, 2011 Non-uniform flow at the exit of the centrifugal impeller mixes in the vaneless space of the diffuser causing a rise in static pressure as well as significant loss of total pressure.
S. SERALATHAN, M. GOVARDHAN
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Inertial convection in rotating fluid spheres [PDF]
, 2004 The onset of convection in the form of inertial waves in a rotating fluid sphere is studied through a perturbation analysis in an extension of earlier work by Zhang (1994).
Simitev, R., Busse, F.H.
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Archives of Foundry Engineering, 2015 Turbine blades have complex geometries with free form surface. Blades have different thickness at the trailing and leading edges as well as sharp bends at the chord-tip shroud junction and sharp fins at the tip shroud.
Raza M., Irwin M., Fagerström B.
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DNA analysis of dust particles sampled from the Turin Shroud [PDF]
, 2015 The Turin Shroud is traditionally considered the burial cloth in which the body of Jesus Christ was enveloped after his dead about 2000 years ago. Here we report the main findings from the analysis of genomic DNA extracted from dust particles, which were
Giulio Galla +9 more
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Characteristics of rotating instability in a centrifugal blower with shrouded impeller
Transactions of the JSME (in Japanese), 2014 The Rotating instability, abbreviated to RI, in a centrifugal blower with shrouded impeller is investigated by experiments and CFD analyses. The RI occurs in a partial-flow operation of the blower prior to stall with mild fluctuations of impeller-discharge velocity and radiated noise, and appears in the power spectra as a gradual hump at almost half of
FUKUDA, Yasuyuki +2 more
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Experimental investigation of the hydrodynamic forces on the shroud of a centrifugal pump impeller [PDF]
, 1989 Fluid-induced forces acting on a rotating impeller are known to cause rotor-dynamic problems in turbomachines. The forces generated by leakage flow along the front shroud surface of a centrifugal turbomachine impeller play an important role among these ...
Zhuang, Fei
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Nihon Kikai Gakkai ronbunshu, 2021 Unsteady diffuser stall behavior in a centrifugal compressor with a vaneless diffuser was investigated by experimental and computational analyses. The diffuser stall generated as the mass flow rate decreased. The diffuser stall cell rotated at 25-30 % of
Nobumichi FUJISAWA +3 more
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Blade dynamic stress analysis of rotating bladed disks [PDF]
Applied and Computational Mechanics, 2007 The paper deals with mathematical modelling of steady forced bladed disk vibrations and with dynamic stress calculation of the blades. The blades are considered as 1D kontinuum elastic coupled with three-dimensional elastic disk centrally clamped into ...
Kellner J., Zeman V.
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A Theoretical Study of Ingress for Shrouded Rotating Disk Systems With Radial Outflow [PDF]
Journal of Turbomachinery, 1989 Sealing of the cavity formed between a stationary disk and a rotating disk under axisymmetric conditions is considered. A mathematical model of the flow in the cavity based on momentum integral methods is described and this is coupled to a simple model of the seal for the case when no ingress occurs.
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