Results 41 to 50 of about 104,776 (194)

Turbomachinery shaft insert [PDF]

open access: yes
An insert is presented for a hollow rotatable shaft on the end of which an impeller is mounted, the insert having a first cylindrical portion receivable within the end of the shaft. The insert includes a radially extending portion adjacent the end of the
Vonpragenau, George L.
core   +1 more source

Performance of a centrifugal pump running in inverse mode [PDF]

open access: yes, 2004
This paper presents the functional characterization of a centrifugal pump used as a turbine. It shows the characteristics of the machine involved at several rotational speeds, comparing the respective flows and heads.
Engeda A.   +5 more
core   +1 more source

Effect of the NACA Injection Impeller on the Mixture Distribution of a Double-Row Radial Aircraft Engine [PDF]

open access: yes, 1946
The NACA injection impeller was developed to improve the mixture distribution of aircraft engines by discharging the fuel from a centrifugal supercharger impeller, thus promoting a thorough mixing of fuel and charge air.
Marble, Frank E.   +2 more
core   +1 more source

Design and optimization of fuel injection of a 50 kW micro turbogas [PDF]

open access: yes, 2018
The present article deals with the design of a micro turbogas turbine suitable for on board applications, e.g., as a power generator on hybrid transit bus, characterized by a simple constructive approach.
Achille, Manuele, Capata, Roberto
core   +1 more source

Effects of distance between impeller and guide vane on losses in a low head pump by entropy production analysis

open access: yes, 2016
The low head pump is widely used in many important water conservation projects for drainage and irrigation purposes. A new type of low head pump, the bidirectional shaft tubular pump, consists of an S-shaped impeller, a straight-guide vane, an inlet ...
J. Pei   +4 more
semanticscholar   +1 more source

Experimental performance of a 13.65-centimeter-tip-diameter tandem-bladed sweptback centrifugal compressor designed for a pressure ratio of 6 [PDF]

open access: yes
A 13.65 cm tip diameter backswept centrifugal impeller having a tandem inducer and a design mass flow rate of 0.907 kg/sec was experimentally investigated to establish stage and impeller characteristics.
Klassen, H. A.   +2 more
core   +1 more source

Characterizing flows with an instrumented particle measuring Lagrangian accelerations

open access: yes, 2012
We present in this article a novel Lagrangian measurement technique: an instrumented particle which continuously transmits the force/acceleration acting on it as it is advected in a flow. We develop signal processing methods to extract information on the
Gasteuil Y   +12 more
core   +1 more source

Force and moment rotordynamic coefficients for pump-impeller shroud surfaces [PDF]

open access: yes
Governing equations of motion are derived for a bulk-flow model of the leakage path between an impeller shroud and a pump housing. The governing equations consist of a path-momentum, a circumferential - momentum, and a continuity equation.
Childs, Dara W.
core   +1 more source

Influence of impeller and diffuser geometries on the lateral fluid forces of whirling centrifugal impeller [PDF]

open access: yes
Lateral fluid forces on two-dimensional centrifugal impellers, which whirl on a circular orbit in a vaneless diffuser, were reported. Experiments were further conducted for the cases in which a three-dimensional centrifugal impeller, a model of the ...
Nishihama, Jiro   +2 more
core   +1 more source

Comparative study of subsynchronous rotating flow patterns in centrifugal compressors with vaneless diffusers [PDF]

open access: yes, 1982
A comparative experimental investigation of the unstable operating modes of a centrifugal compressor was made. Impeller and/or diffuser rotating stall was observed, depending on the flow conditions.
Frigne, P., Vandenbraembussche, R.
core   +1 more source

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