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Method of measuring void fraction in a channel with porous media

Tairov E.A. Method of measuring void fraction in a channel with porous media // Thermophysics and Aeromechanics. Vol.27. No.2. 2020. P.313-316. DOI: 10.1134/S0869864320020134 A new method is described for measuring the average void fraction of a one-component two-phase flow moving in a channel with a fixed porous aggregate. The known method of cutting off the flow is used but, in contrast, the vapor phase in the cut-off volume is transferred to the condensed state, and the released space is filled...

Теги: granular layer , measurement of void fraction , steam-water flow , flow of water , porous materials , void fraction , average void fraction , condensed state , cutting-off , fixed bed , porous aggregates , spherical particle , steam-water flows , vapor phase , two phas
Раздел: ИСЭМ СО РАН
Effect of the flow velocity on bubble boiling characteristics

Anatoliy L., Polina K. Effect of the flow velocity on bubble boiling characteristics // E3S Web of Conferences. Vol.128. ID: 06002. 2019. DOI: 10.1051/e3sconf/201912806002 The present research considers the initial stage of nucleate boiling with high heat fluxes releasing from the technical surface. We show new experimental data on the dynamics of the vapor phase in subcooled water flow in the channel under nonstationary heat release conditions. The heat release dissipation on the heater was performed...

Теги: flow of water , heat flux , heating , momentum transfer , cylindrical walls , formation dynamics , heat release , high heat flux , non-stationary heat release , pulse durations , sub-cooled water , technical sur
Раздел: ИСЭМ СО РАН
Application of a Volterra quadratic polynomial to modeling elements of heat engineering devices

Antipina E., Spiryaev V., Tairov E. Application of a Volterra quadratic polynomial to modeling elements of heat engineering devices // E3S Web of Conferences. Vol.114. ID: 01007. 2019. DOI: 10.1051/e3sconf/201911401007 This paper considers integral models built to describe dynamic processes in a 135 MW power unit condenser. For this purpose, we use a quadratic segment of the Volterra integral power series. The first set of models was built with a perturbation of the cooling water flow, and the second...

Теги: flow of water , flow velocity , hydraulics , cooling water flow , dynamic process , heat engineering , input perturbation , model elements , pressure and temperature , quadratic polynomial , temperature changes
Раздел: ИСЭМ СО РАН
Technology of flood water zones moddeling in downstream pool of hydroelectric power station at strong flow through its water abstraction points

Gachenko A.S., Hmelnov A.E., Abasov N.V., Osipchuk E.N. Technology of flood water zones moddeling in downstream pool of hydroelectric power station at strong flow through its water abstraction points // CEUR Workshop Proceedings. Vol.2033. 2017. P.252-256. The article provides a technology for estimating of potential flooding areas in the lower pool of the Irkutsk HPP at high mandatory water flow expenses through its water abstraction points, that probability has increased significantly since 2001...

Теги: coastline , digital relief , expenditure , flooding , morfostvor , morphing , abstracting , data handling , floods , flow of water , hydroelectric power , hydroelectric power plants , lakes , oil well flooding , monitoring
Раздел: ИСЭМ СО РАН


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