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Article
Influence of Electrohydrodynamic Flows on Intensification of Heat- and Mass-Transfer Processes: Part 3. Electroconvection and Electrohydrodynamic Pumps in the Cooling and Thermostating Systems
The efficiency of the electrohydrodynamic (EHD) cooling and thermostating systems of electronic and electrical devices is investigated. A design of electroconvective cooling of an X-ray generator is proposed, ...
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Article
Influence of Electrohydrodynamic Flows on Intensification of Heat- and Mass-Transfer Processes: Part 2. Single- and Multistage Electrohydrodynamic Pumps
Single-stage electrohydrodynamic (EHD) pumps with electrodes “a diaphragm–a plate with a hole” and “a wire–a plate with a hole” are studied. It is established that the pump characteristics can be significantly...
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Article
Influence of Electrohydrodynamic Flows on Intensification of Heat- and Mass-Transfer Processes: Part 1. Electrohydrodynamic Flows and Characteristics of Single-Stage Electrohydrodynamic Pumps
The results of investigations of electrohydrodynamic (EHD) flows using the schlieren method in the following systems of electrodes are presented: “blade–insulated edge blade,” “blade–two rods,” and “rod with p...
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Article
Hydrodynamic Aspects of a High-Voltage Infiltration Nanogenerator
The hydrodynamic aspects of functioning of a high-voltage infiltration nanogenerator employing the potential energy of a liquid entering a glass filter are considered. This energy transforms into electric ener...
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Article
A High Voltage Nanogenerator Based on Electrification of the Dielectric Liquid Flow through the Glass Filter
The mechanisms of electrification of various solids in contact or friction, as well as in the interaction of liquid media with conductive and dielectric materials, are described and analyzed. The output charac...
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Article
Heat Transfer Features under Bubble Boiling in an Electroconvection Flow
The effects of electric field strength and interelectrode distance on the main parameters of boiling under conditions of electrohydrodynamic flow have been studied. It has been found that the field effect exhi...
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Article
Characteristics of Multistage Electrohydrodynamic Converters
The characteristics of a multistage electrohydrodynamic converter (EHDC) have been studied, and the results are presented in this paper. The diagram of an experimental installation is described; the pressure h...
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Article
Physical Peculiarities of Corona-Discharge Motors
This work is aimed at the study of the corona-discharge motor (CDM), whose torque is produced due to the electric dipole moment, which appears at the corona discharge. The physical mechanisms and features of t...
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Article
Relaxation of Output Characteristics of Electrohydrodynamic Pumps
The principle of operation of an electrohydrodynamic pump (EHDP) is explained. Research problems are formulated for the study of the patterns and peculiarities of the operation of the EHDP for the purpose of i...
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Article
Heat transfer of an evaporator–condensing system with electrohydrodynamic coolant circulation and different spatial orientation
The influence of the spatial orientation of an evaporator–condensing system (ECS) on the heat transfer coefficient is considered. As found, it varies according to the cosine law, which implies that it is at it...
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Article
Open AccessExtreme ultraviolet resonant inelastic X-ray scattering (RIXS) at a seeded free-electron laser
In the past few years, we have been witnessing an increased interest for studying materials properties under non-equilibrium conditions. Several well established spectroscopies for experiments in the energy do...
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Article
A corona-discharge dipole engine
The construction and operation of a small-sized electrostatic engine are described. It consists of a rotor in the form of a thin-walled cylinder made from a dielectric material. There are two strips of metal f...
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Article
Characteristics of an electrohydrodynamic pump
The head and flow rate characteristics—the dependences of the differential head and the fluid flow rate through an electrohydrodynamic pump (EHDP) on the electric field strength and the properties of the worki...
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Article
Heat transfer at electrohydrodynamic pum** through in an evaporator-condensing system
The article considers the hydrodynamic and temperature dependencies of heat and mass transfer in an evaporator-condensing system representing a pulsating heat pipe with a built-in heater used as an evaporator,...
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Article
Ellipsoidal concentrators for laboratory X-ray sources: Analytical approach for optimization
Extremely low intensity of most existing laboratory X-ray sources (λ ∼ 0.01–10 nm) calls for the development of collimating and concentrating optics, which allow to increase significantly the radiation power o...
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Article
Model approach to solving the inverse problem of X-ray reflectometry and its application to the study of the internal structure of hafnium oxide films
The key features of the inverse problem of X-ray reflectometry (i.e., the reconstruction of the depth profile of the dielectric constant using an experimental angular dependence of reflectivity) are discussed ...
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Article
Boiling heat transfer in the field of electric forces
Comparative estimations of the vapor generation conditions on a heating surface with boiling both in the field and without it depending on the value of heat flux and the field strength are given. The pattern o...
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Article
General laws of X-ray reflection from rough surfaces: II. Conformal roughness
Is shown that, if the expansions of the Debye-Waller formulas for the reflection and total scattering coefficients in the roughness height σ are limited to terms of order σ2, these expressions are valid for any l...
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Article
Condensation of silica nanoparticles on a phospholipid membrane
The structure of the transient layer at the interface between air and the aqueous solution of silica nanoparticles with the size distribution of particles that has been determined from small-angle scattering h...
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Article
Activation parameters of supercritical and gas-phase β-pinene thermal isomerization
New data on enthalpy and entropy contributions to the energy barrier of β-pinene thermal isomerization were obtained. The rate of β-pinene conversion is higher in supercritical EtOH (P = 120 atm) than in the gas ...
