Search Results - "Shchelchkov, A"

Estimate of the Capture Time and Construction of the Pursuer’s Strategy in a Nonlinear Two-Person Differential Game by Shchelchkov, K. A.

“…In a finite-dimensional Euclidean space, we consider a differential game of two persons—a pursuer and an evader—described by a nonlinear autonomous controlled…”
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Technique of Transferring Fluid Mass and Volume Units in a Flow and of Mass and Volumetric Flow Rates of Fluid by Means of Indirect Measurements by Shchelchkov, A. V., Korneev, R. A., Fafurin, V. A.

“…Theoretical foundations of the technique of transferring fluid mass and volume units in a flow, as well as of mass and volumetric flow rates of fluid by means…”
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Get 63-2019: State Primary Special Standard of Units of Mass and Volume of Liquid in a Flow and of Mass and Volume Flow Rates of a Liquid by Tukhvatullin, A. R., Shchelchkov, A. V., Fafurin, V. A.

“…Elements in the improvement of the metrological assurance of measurements of the units of the mass and volume of an entrained liquid and of the mass and…”
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Influence of the variable geometry of the flow switch nozzle exit on the metrological characteristics of a calibration unit with weighing devices by Korneev, A. A., Shchelchkov, A. V., Korneev, R. A.

“…This article discusses the issues regarding the improvement of the metrological characteristics, weight, dimensions, and technical and economic indicators of…”
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Modification of the equation for mass flow rate (mass) measurement of liquid with account of dynamic influencing factors by Shchelchkov, A.V., Fafurin, V.A., Korneev, R.A., Tukhvatullin, R.R.

“…The paper introduces theoretical foundations for the method of transferring units of mass and volume of liquid in the flow, mass and volumetric liquid flow…”
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Optimization of the Process of Reproducing the Units of Mass and Volume of Liquid in Flows, and Mass and Volume Flow Rates of Liquid for Calibration Units with Weighing Devices by Korneev, R. A., Tukhvatullin, A. R., Fafurin, V. A., Nigmatullin, R. R., Shchelchkov, A. V.

“…An experimental method is presented for determining the minimum time interval for filling a storage tank with working fluid during reproduction of the units of…”
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Heat transfer enhancement and critical heat fluxes in boiling of microfinned surfaces by Popov, I. A., Shchelchkov, A. V., Gortyshov, Yu. F., Zubkov, N. N.

“…A brief review is presented of experimental investigations of heat transfer enhancement during boiling on surfaces with nano- or microstructure. Distilled…”
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Heat Transfer and Flow in Slot Channels with Promising Surface Intensifiers by Isaev, S. A., Gortyshov, Yu. F., Popov, I. A., Mironov, A. A., Shchelchkov, A. V.

“…The paper presents the numerical simulation results of heat transfer and flow in slot channels with surface intensifiers of new shape—a dimple shaped as a…”
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Artificial neural networks application on friction factor and heat transfer coefficients prediction in tubes with inner helical-finning by Skrypnik, A.N., Shchelchkov, A.V., Gortyshov, Yu.F., Popov, I.A.

“…A study presents new model of the artificial neural network to predict friction factor and heat transfer coefficients for the turbulent flow in tubes with…”
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Assessment of Influence of Flow Diverter on the Metrological Characteristics of Calibration Devices Used for the Units of Mass and Unit of Volume of a Liquid in a Flow and of Mass and Volume Discharges of Liquid by Korneev, R. A., Tukhvatullin, A. R., Fafurin, V. A., Shchelchkov, A. V.

“…A new approach to the assessment of interfering factors that arise in the process of diversion of a flow of liquid in the weighing device of a calibration…”
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Raising the Efficiency of Heat-Exchange Tubes of Power Installations by Olimpiev, V. V., Mirzoev, B. G., Popov, I. A., Shchelchkov, A. V., Skrypnik, A. N.

“…The authors show prospects for using upgraded forms of discrete roughness that will make it possible to accomplish savings in electric energy for pumping the…”
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Boiling of a Liquid on Microstructured Surfaces Under Free-Convection Conditions by Shchelchkov, A. V., Popov, I. A., Zubkov, N. N.

“…The authors have shown the possibilities of replacing complex and expensive technologies of manufacture of nanorough, microrough, and porous materials for…”
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Heat transfer and hydraulic resistance in channels with spherical protrusions by Popov, I. A., Shchelchkov, A. V., Yarkaev, M. Z.

“…This article presents an analytical overview of experimental studies of hydraulic resistance and heat transfer in channels with disturbed flow surfaces in the…”
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On the Problem of Controlling a Nonlinear System by a Discrete Control under Disturbance by Shchelchkov, K. A.

“…We consider the problem of stabilization to zero under disturbance in terms of a differential pursuit game. The dynamics is described by a nonlinear autonomous…”
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Effect of Surface Heat Exchange Intensifier Geometry on Heat Transfer Tube Strength by Popov, I. A., Shchelchkov, A. V., Aksyanov, R. A., Skrypnik, A. N., Isaev, S. A.

“…Experimental studies of the tensile and compression strength as well as the strength at three-point bending of heat exchange tubes with various types of…”
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Thermohydraulic Efficiency of Tubes with Internal Spiral Finning by Skrypnik, A. N., Shchelchkov, A. V., Popov, I. A., Ryzhkov, D. V., Sverchkov, S. A., Zhukova, Yu. V., Chornyi, A. D., Zubkov, N. N.

“…The authors have presented results of experimental investigation into the hydrodynamics and heat transfer during the water flow in a tube with internal spiral…”
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Experimental study of turbulent forced convection of nanofluid in channels with cylindrical and spherical hollows by Minakov, A.V., Guzei, D.V., Meshkov, K.N., Popov, I.A., Shchelchkov, A.V.

“…•The experiment investigation of turbulent convection of nanofluids in the rough pipes was carried out.•The dependence of heat transfer coefficient from the…”
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Numerical Simulation of the Intensification of the Heat Exchange in a Plane-Parallel Channel with a Cylindrical Shallow Dimple on the Heated Wall by Isaev, S. A., Leontiev, A. I., Baranov, P. A., Popov, I. A., Shchelchkov, A. V., Gabdrakhmanov, I. P.

“…A comparison of the results of numerical calculations of the convective heat exchange in narrow plane-parallel channels with shallow cylindrical and spherical…”
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On the “equivalence” of two evasion problems with multiple evaders by Petrov, N. N., Shchelchkov, K. A.

“…A simple pursuit problem in which a group of pursuers and a group of evaders are involved is considered under the condition that the group of pursuers includes…”
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Boiling heat transfer of different liquids on microstructured surfaces by Popov, I. A., Shchelchkov, A. V., Zubkov, N. N., Lei, R. A., Gortyshov, Yu. F.

“…The results of an experimental study of heat transfer on microstructured surfaces are presented. The surfaces studied have been obtained by deforming cutting…”
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