Results 261 to 270 of about 36,817 (300)

Research on a new pressure pulsator

Physics of Fluids
Pulsators are widely used to study the dynamic characteristics of liquid flow components. However, it is difficult to adapt the existing actuators to the excitation requirements under high pressures, low temperatures, and toxic media. This study describes the design of a novel pressure pulsation device and presents the results of simulations and ...
Su Yong, Gong Wu-Qi
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Analysis of Pressure Pulsation in Hypercompressor Pipeline

Volume 3: Fluid-Structure Interaction; High Pressure Technology, 2022
Abstract The discharge pressure of hypercompressors in Low Density Polyethylene (LDPE) Plants reaches 350 MPa or higher, its safety and reliability requirements are extremely high. The pipeline vibration is the most important factor that involves the safety of the compressor.
Maofei Geng, Jun Xiao, Zegang Qian, Shuai Liu, Chengyan Zhang, Le Wang, Xiaoling Yu, Haihong Wang   +7 more
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Pressure pulsations above turbomolecular pumps

Journal of Vacuum Science and Technology, 1982
The effect of increasing the temperature of the cooling water for a Leybold Turbovac 350 is studied. (AIP)
S. Danziger, B. R. F. Kendall, J. Dormer
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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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Minimizing Pressure Pulsations in a Centrifugal Compressor

Volume 6: Structures and Dynamics, Parts A and B, 2011
As a centrifugal impeller rotates, it converts shaft mechanical power into fluid power - static and dynamic pressure. As a result of this aerodynamic process, the flow in the compressor has steady and unsteady components. The latter is undesirable as it can manifest itself as pressure pulsations that consequently cause machine vibration, noise and ...
Zheji Liu, Mark J. Kuzdzal
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Attenuation of low frequency pressure pulsations

2022
In this thesis, the concept of hydraulic pulsating filter is explored and developed. The filter or resonator is designed to attenuate the pulsation that occurs when the hydraulic pump is discharged. Pumps pulsate over a range of frequencies, depending on pump design, speed, displacement, and other factors.
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A pressure control switch with a pulsation filter

Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1957
THIS PAPER describes a pressure control switch which uses viscous damping to prevent the transmission of pressure pulsations from a pump outlet system to the pressure control system. This was accomplished by designing a pressure switch which has certain dynamic characteristics as well as the normal static characteristics.
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Transducers for measuring strong pressure pulsations

Measurement Techniques, 1997
Results are presented from an experimental study of pressure pulsations inside the precumbustion chamber of a model of a combustion engine. The pulsations are studied with the use of thin-film capacitive transducers.
A. A. Kazaryan, P. V. Miodushevskii, A. S. Mirskov   +2 more
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Pressure pulsations in annular nozzles

Fluid Dynamics, 1973
V. A. Lyutyi, L. V. Novikov, A. I. Shvets   +2 more
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THE PRESSURE PULSATION OF 11 APRIL 1944

Journal of Meteorology, 1949
Abstract Windstorms of 11 April 1944 were associated with the eastward movement of a large pulsation in pressure and strong easterly surface winds. Barograph and wind records from many stations are used to show the hourly movement of this pulsation.
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