Research in thermoanemometric measuring device of pulse flow of two-phase medium

Dmytriv, Vasyl; Dmytriv, Ihor; Dmytriv, Taras

doi:10.22616/erdev2018.17.n200

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…The second method involves the temperature measuring channels and consists of the implementation of the reference voltage calibrator for thermoelectric sensors [4,5].…”

Section: Exact Methods Of Measuring and Monitoring The Temperaturementioning

confidence: 99%

The Measuring Channels Calibration in the Industry

Sulyma¹,

Mykyychuk²,

Zinchuk³

2021

MEM

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The trend of development of measuring equipment in particular measuring systems and technological processes leads to the need of measuring the temperature without dismantling the primary transducers and stopping the technological process in a very wide range and with high accuracy. The choice of methods and means of measurement depends on such factors as the value of measured temperature, necessary accuracy of measurement, conditions of measurements, and operation of the investigated object. The topicality of the problem is that industrial metrology operates the temperature measuring systems, transducers of which are deployed in such a way that their dismantling is impossible due to the specifics of the process or dangerous for operators’ life (nuclear power plants). Such measuring systems, due to the specifics of their application, are not metrologically provided in the periods between major repairs of controlled objects, thus violating the unity of measurements.

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“…The second method involves the temperature measuring channels and consists of the implementation of the reference voltage calibrator for thermoelectric sensors [4,5].…”

Section: Exact Methods Of Measuring and Monitoring The Temperaturementioning

confidence: 99%

The Measuring Channels Calibration in the Industry

Sulyma¹,

Mykyychuk²,

Zinchuk³

2021

MEM

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“…One such measure is the species and variety selection of crops that least accumulate radionuclides [7]. This makes it possible to adapt agriculture, even at densities of contaminated areas that do not meet the recommendations.…”

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confidence: 99%

Opportunities and perspectives of agricultural development in radiation-polluted territories

Teteruk¹,

Ландін²,

Фещенко³

2018

ЗбП

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The method of experimental determination of tangential stresses on the surface of flow around with a gaseous medium

Dmytriv

Lanets

Dmytriv

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Experimental research of the force load on the flow around surface is important for the design of aircraft and gas transport systems. The main parameter is the tangential stress, which is maximum in the boundary layer on the flow around surface. The velocity in the boundary layer and its thickness affect the tangential stresses that arise during the flow of the medium. They also have an influence on the friction coefficient, which characterizes the pressure losses. In the work, the method of experimental measurement of velocity on the flow around surface is considered, and an information and measurement system is proposed for determining the tangential stresses on the flow around surface based on the flow velocity measurement in the boundary layer. The algorithm of the measurement technique is presented in the form of a functional structural scheme of the laminar boundary layer on the surface of the flow around. The sensor for measuring the velocity in the boundary layer is installed at characteristic points namely at x distance from the front border of the flow around surface, and also at y height from the surface of the boundary layer. The results of the planned factorial experiment of air flow around the surface are given. The factors were the v 0 velocity of the air flow entering the flow around surface, the x distance from the edge of the surface, the y distance from the surface along the thickness of the layer. The response criterion was the calculated value of the tangential stress based on the vx measured flow velocity at a given point of the boundary layer. The developed method of studying the velocity distribution and determining the tangential stresses on the surface of the flow around under a dynamic boundary layer makes it possible to determine with high discreteness the parameters of the process of the surface around flow of a Newtonian gaseous medium.

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Research in thermoanemometric measuring device of pulse flow of two-phase medium

Cited by 8 publications

References 5 publications

The Measuring Channels Calibration in the Industry

The Measuring Channels Calibration in the Industry

Opportunities and perspectives of agricultural development in radiation-polluted territories

The method of experimental determination of tangential stresses on the surface of flow around with a gaseous medium

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