Results 11 to 20 of about 3,183,891 (218)

K-J polar angular quadrature set for a method of characteristics based on neutrons cattering cross-sections [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
A novel polar angular quadrature set called the Kim-Jevremovic polar angular quadrature set is derived for the method of characteristics. It is based on neutron anisotropic scattering cross-sections in the Evaluated Nuclear Data File.
Kim Donghoon   +3 more
doaj   +1 more source

Universal Form of Radial Hydraulic Machinery Four-Quadrant Equations for Calculation of Transient Processes

open access: yesEnergies, 2023
Suter curves for the Wh and Wm characteristics and four-quadrant (4Q) diagrams of 11 radial pump–turbine models with different specific speeds (nq = 24.34, 24.8, 27, 28.6, 38, 41.6, 41.9, 43.83, 50, 56, and 64.04) are presented for the first time in this
Zdravko Giljen, Miloš Nedeljković
doaj   +1 more source

Pressure Transient Model of Water-Hydraulic Pipelines with Cavitation

open access: yesApplied Sciences, 2018
Transient pressure investigation of water-hydraulic pipelines is a challenge in the fluid transmission field, since the flow continuity equation and momentum equation are partial differential, and the vaporous cavitation has high dynamics; the frictional
Dan Jiang   +3 more
doaj   +1 more source

Modelling and Simulation Hydrodynamics Processes in Liquefied Natural Gas Transportation Systems

open access: yesJournal of Marine Science and Engineering, 2022
Global natural gas resources are growing and are increasingly geographically diverse. A Floating Storage and Regasification Unit (FSRU) is one of the most commonly used vessel types in the global ship fleet due to the possibility of storage, reloading to
Marijonas Bogdevicius   +4 more
doaj   +1 more source

МАГНЕТОТЕРМОПРУЖНЕ НЕСТАЦІОНАРНЕ ДЕФОРМУВАННЯ БАГАТОШАРОВИХ КОНСТРУКЦИЙ

open access: yesElektrotehnìka ta Elektroenergetika, 2015
Досліджується розповсюдження термопружних хвиль у багатошаровій кусково-однорідній смузі, спричинених комплексною дією нестаціонарних термомеханічних навантажень на зовнішніх поверхнях конструкції і об’ємним термоударом, що збуджується електромагнітним ...
Y. V. Mastinovky
doaj   +1 more source

Initial boundary value problems for some damped nonlinear conservation laws

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper, we study the non-negative solutions of initial boundary value problems for some damped nonlinear conservation laws on the half line modelled by first order nonlinear hyperbolic PDEs.
Manoj Yadav
doaj   +1 more source

Entropy Minimization Design Approach of Supersonic Internal Passages

open access: yesEntropy, 2015
Fluid machinery operating in the supersonic regime unveil avenues towards more compact technology. However, internal supersonic flows are associated with high aerodynamic and thermal penalties, which usually prevent their practical implementation. Indeed,
Jorge Sousa, Guillermo Paniagua
doaj   +1 more source

Classical solution of one problem of a perfectly inelastic impact on a long elastic semi-infinite bar with a linear elastic element at the end

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2022
In this article, we study the classical solution of the mixed problem in a quarter of a plane for a one-dimensional wave equation. This mixed problem models the propagation of displacement waves during a longitudinal impact on a bar, when the load ...
Viktor I. Korzyuk, Jan V. Rudzko
doaj   +1 more source

Employing the Method of Characteristics to Obtain the Solution of Spectral Evolution of Turbulent Kinetic Energy Density Equation in an Isotropic Flow

open access: yesAtmosphere, 2019
This study aims to review the physical theory and parametrizations associated to Turbulent Kinetic Energy Density Function (STKE). The bibliographic references bring a broad view of the physical problem, mathematical techniques and modeling of turbulent ...
Charles Rogério Paveglio Szinvelski   +5 more
doaj   +1 more source

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy