Results 11 to 20 of about 5,558,401 (302)

Analytical solution of axi-symmetrical lattice Boltzmann model for cylindrical Couette flows [PDF]

open access: yes, 2012
Analytical solution for the axi-symmetrical lattice Boltzmann model is obtained for the low-Mach number cylindrical Couette flows. In the hydrodynamic limit, the present solution is in excellent agreement with the result of the Navier-Stokes equation ...
An, Hongyan   +3 more
core   +4 more sources

Analytical landing trajectories for embedded autonomy [PDF]

open access: yes, 2010
This paper considers an optimal guidance law for the initial braking phase of a soft landing mission on a celestial body without atmosphere in which boundary conditions on height and velocity are specifed. The optimal lander attitude for the minimum fuel
Jing, W.X.   +5 more
core   +4 more sources

MOTION ANALYSIS OF POINT OF A SIMPLE MECHANISM [PDF]

open access: yesActa Tecnología, 2019
This article deals with motion analysis of point of a simple mechanism executing a rotational movement. We analysed the movement of its end points. The trajectories of points is cardioids.
Darina Hroncová, Ingrid Delyová
doaj   +1 more source

Approximate analytical solutions for multispecies convection-dispersion transport equation with variable parameters

open access: yesFrontiers in Earth Science, 2023
Multispecies pollutant migration often occurs in polluted groundwater systems. Most of the multispecies problems that have been dealt in the literature assume constant transport parameters, primarily because analytical solutions for varying parameters ...
Manotosh Kumbhakar, Vijay P. Singh
doaj   +1 more source

Numerical and Analytical Approach for Film Condensation on Different Forms of Surfaces [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2019
This paper tries to achieve a solution for problems that concern condensation around a flat plate, circular and elliptical tube in by numerical and analytical methods. Also, it calculates entropy production rates. At first, a problem was solved with mesh
Ammar Kazemi Jouybari   +1 more
doaj   +1 more source

Differential Precipitation of Mg(OH)2 from CaSO4·2H2O Using Citrate as Inhibitor—A Promising Concept for Reagent Recovery from MgSO4 Waste Streams

open access: yesMolecules, 2020
In hydrometallurgical processing and acidic wastewater treatment, one of the neutralizing agents employed is MgO or Mg(OH)2. At the end of this process, the resulting solution, which is rich in SO42− and Mg2+ is treated with lime to remove (or minimize ...
Szilveszter Ziegenheim   +5 more
doaj   +1 more source

Analytical and Numerical Solutions for the Thermal Problem in a Friction Clutch System

open access: yesComputation, 2021
The dry friction clutch is an important part in vehicles, which has more than one function, but the most important function is to connect and disconnect the engine (driving part) with driven parts.
Laith A. Sabri   +4 more
doaj   +1 more source

Removal of a Single-Component NAPL under Nonequilibrium Condition: a Zero Mass Flux Moving Boundary [PDF]

open access: yesEngineering and Technology Journal, 2014
A new zero flux moving boundary conditions to solve the non-equilibrium single-component dispersion-advection transport problem containing NAPL have been introduced.
Talib R. Abbas   +2 more
doaj   +1 more source

Analytical Solution of Two-Dimensional Sine-Gordon Equation

open access: yesAdvances in Mathematical Physics, 2021
In this paper, the reduced differential transform method (RDTM) is successfully implemented for solving two-dimensional nonlinear sine-Gordon equations subject to appropriate initial conditions.
Alemayehu Tamirie Deresse   +2 more
doaj   +1 more source

LAYERED DOUBLE HYDROXIDES, PECULIAR AND VERSATILE MATERIALS OFFERING MANY RESEARCH AND APPLICATION POSSIBILITIES

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2019
This review article describes the major structural features of layer double hydroxides (LDHs), gives an overview of their synthetic and modification methods as well as the structural characterization possibilities both the generally used and those ...
Pál SIPOS, István PÁLINKÓ
doaj   +1 more source

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