Results 221 to 230 of about 20,946 (263)

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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The effect of pressure pulsation on diffusion combustion

27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021
The paper presents the results of a study of diffusion combustion of gasoline in the presence of external pressure pulsations with small amplitude. It is found that external pressure pulsations lead to characteristic changes in the temperature field, which are expressed by an increase in the amplitude of the temperature pulsation for certain modes of ...
Agafontsev, Mikhail V., Loboda, Egor L., Klimentiev, A. S., Reyno, Vladimir V.   +3 more
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Pressure pulsations in the piping of reciprocating pumps

Chemical Engineering & Technology, 1987
AbstractPressure pulsations in hydraulic systems, generated by reciprocating pumps, can cause serious problems with regard to plant safety and reliability. In particular, fatigue problems arise in high‐pressure piping systems. The available knowledge is not sufficient for an accurate computation of pressure peaks in the piping of reciprocating pumps. A
Gerhard Vetter, Friedrich Schweinfurther
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Relationship between arterial pulsations and intraocular pressure

Experimental Eye Research, 1983
A model of the eye is proposed in order to find a relationship between small changes in volume and the intraocular pressure in terms of the physical parameters of the globe. The results show that pulsations in pressure due to small variations in volume are directly proportional to the average intraocular pressure and inversely proportional to the ...
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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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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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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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