Results 261 to 270 of about 37,035 (297)

Pressure Pulsations in Flow Through Branched Pipes

Journal of the Hydraulics Division, 1966
Pronounced cyclic variations in pressure and in flow into opposing laterals from a common pipe or conduit have been observed in several widely different and independent pipe systems. In one instance, noise operation of two centrifugal pumps was encountered where the suction pipes were joined in a common intake line. Unsteady flow also has been observed
David L. Appel, Yun-Sheng Yu
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Protection of manometers when measuring pulsating pressures

Measurement Techniques, 1960
The above damper provides an almost complete suppression of pulsations at the resonant frequency of the manometer transducer; moreover the time constant of the manometer transducer increases only a little (∼1/4−1/6 that of the known damping devices).
A. S. Lifshits, I. P. Mandel'berg
openaire   +1 more source

Axially-cracked pipes under pulsating internal pressure

International Journal of Fatigue, 2000
Approximate values of stress-intensity factor along the front of an external axial (longitudinal) surface flaw in a round pipe subjected to an internal pressure are computed by employing both the superposition principle and the power series expansion of the actual hoop stress distribution.
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Survey of gauges for measuring pressure pulsations

Measurement Techniques, 1998
A survey is made of thin-film and bulk gauges of different types for measuring pressure pulsations in aviation technology.
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Experimental study of separation-zone pressure pulsation

Fluid Dynamics, 1972
We examine extremely nonuniform separated water flow in the initial segment of a penstock of rectangular section resulting from the separated flow past a two-dimensional gate. The meansquare deviations p', one-dimensional frequency spectra S(ω), spatial correlations r(x), and distribution functions F(p) of the pressure pulsation are determined ...
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Model and Prototype Draft Tube Pressure Pulsations

1996
All producers of Francis turbines daily meet the problem of draft tube vortex appearance and its consequences [1,2,3,4]. Limitations in turbine operation because of the vortex appearance and undesirable consequences on hydraulic system are sufficient reason for its intensive researching.
Vladimir Kercan, Marin Bajd, Vesko Djelić, Andrej Lipej, Dragica Jošt   +4 more
openaire   +1 more source

Pressure pulsations in annular nozzles

Fluid Dynamics, 1975
V. A. Lyutyi, L. V. Novikov, A. I. Shvets   +2 more
openaire   +1 more source

Pressure Pulsation Dampers for Injectors

MTZ worldwide, 2012
Franz Durst, Arthur Handtmann, Dominik Haspel, Lars Schilling   +3 more
openaire   +1 more source

STUDY OF WELL PRESSURE AT PULSATING VALUES OF INITIAL PRESSURE

Scientific research of the SCO countries: synergy and integration
Pulsations are generated by the generator at the values of the initial pressure applied to the well. Depending on these pulsations, the well pressure and the resulting oil production also change. In this issue, changes in well pressure and oil production are studied.
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Pressure Pulsations in Reciprocating Compressor Delivery Systems

Journal of Mechanical Engineering Science, 1966
In an earlier paper (1)†, the author discussed the nature of pressure pulsations in suction systems of free-piston gas generators, and in particular various forms of pulsation damping devices. A theoretical approach was based on a simple linear treatment of the system, i.e.
openaire   +1 more source