Hydrodynamic characteristics

In work "Application of hydraulic modelling TELEMAC-1D for flow simulation of the Tich-Bui river basin", the author uses hydraulic software Mascret designed to simulate the flow propagation on river basin formed by rain. On that basis, some specific characteristics about the flow regime of this river basin also have been identified.

9p dathienlang1012 03-05-2024 3 0   Download

Ebook "Theoretical and experimental sonochemistry involving inorganic systems" fills this gap and presents a concise and thorough review of this fascinating area of Sonochemistry in a single volume. Despite the fact that chemical applications of ultrasound are now widely acknowledged, a detailed presentation of inorganic systems covering nano-particles, catalysis, aqueous chemistry of metallic solutions and their redox characteristics, both from a theoretical and experimental perspective has eluded researchers of this field.

408p manmanthanhla0201 26-02-2024 2 2   Download

This study sheds light on the post-equilibrium sea bed scour mechanism around a wind turbine. The simulation results explain the influence of different hydrodynamic mechanisms on the local scours in a cohesive fluid, such as periodic waves, random waves, and constant currents. The conventional Bingham model is adopted as the fundamental model. However, due to the intrinsic characteristic, the Bingham model cannot illustrate the stratified material satisfactorily.

4p giangnhanly 02-10-2023 7 4   Download

This paper gives an illustration of using the computational fluid dynamics approach to investigate the movement of the solution inside the hand-washing chamber. The numerical results obtained from the numerical simulation demonstrate the hydrodynamic values, streamlines, and density of the solution. The ability to predict the handwashing chamber's hydraulic and cleaning performance efficiencies is essential for evaluating the operability and improving the further design.

6p giangnhanly 02-10-2023 6 5   Download

Part 2 book "Experimental hydrodynamics of fast floating aquatic animals" includes content: Interaction of aquatic animals systems with environment, experimental investigations into the boundary layer and mechanical characteristics of dolphin skin.

123p oursky05 20-09-2023 5 2   Download

Molecular dynamics modeling was applied to predict chitosan molecule conformations, the contour length, the gyration radius, the effective cross-section and the density in electrolyte solutions. Using various experimental techniques the diffusion coefficient, the hydrodynamic diameter and the electrophoretic mobility of molecules were determined.

13p viginny 30-12-2022 9 2   Download

The results showed that the growth rate of corals will return to normal after 4 months rehabilitation. The factors affected the effective coral rehabilitation including: Coral reef predators, spatial competition among species, environmental conditions change due to human‟s activities; and other factors such as hydrodynamic regimes, cutting fragment corals cause its injury damage.

8p inception36 30-11-2021 7 1   Download

"The journal of Nuclear science and technology - Volume 10/Number 3, 2020" presentExperimental investigation of hydrodynamic phenomena in vertical-upward adiabatic two-phase flow conditions; comparison and evaluation for the dose distribution and physical characteristics between two AAA and AXB algorithms in Eclipse v13.6 software on treatment plans in regions heterogenous densities at 108 Military Central Hospital; radiation-crosslinked scaffolds from gelatin/CM-chitin and gelatin/CM-chitosan hydrogels for adipose-derived stem cell culture…

64p trinhthamhodang1218 14-03-2021 24 2   Download

This study analyses the hydrodynamic characteristic of the tilting pad thrust bearing. Research content is simultaneously solving the Reynolds equation, force equilibrium equation, and momentum equilibrium equations. Reynolds equation is solved by utilizing the finite element method with Galerkin weighted residual, thereby determines the pressure at each discrete node of the film. Force and momentums are integrated from pressure nodes by Gaussian integral.

6p trinhthamhodang1218 04-03-2021 18 1   Download

In present study, a tracer experiment was conducted in two laboratory scale reactors that were operated for treatment of dairy effluent and inferences were drawn for the hydrodynamic characteristics such as residence time distribution curve, mean residence time, dispersion index, volumetric efficiency, short-circuiting, and clogging inside the reactor.

7p cothumenhmong9 18-01-2021 9 1   Download

During the operating, the lubricated oil film pressure of hydrodynamic bearing is varied under the load apply and under the rotation speed. This pressure is one important characteristic when studying the lubrication problem for the bearing. An experimental device and the journal bearing are used to determine the pressure and the temperature of the lubricated oil film. The load is applied on the housing bearing. The journal bearing is subjected to different applied load at different velocities. Lubricant oil is circulatingly supplied via oil supply hole in the housing.

5p caygaocaolon6 22-07-2020 27 2   Download

A propeller is a device converting rotary energy from the piston engines into the energy of the fluid thereby creating thrust to propel vessels. For this reason, it is extremely necessary to perform analysis on hydrodynamic characteristics of propellers and Computational Fluid Dynamics (CFD) can be considered the most sufficient way to accomplish this process.

7p vimante2711 05-03-2020 10 1   Download

This study preliminarily applies the Regional Ocean Modeling System (ROMS) in the two major monsoon seasons (Northeast and Southwest monsoons) for the South Central Vietnam sea (9–14.5 oN, 105–112oE), in which the hydrodynamic and ecological modules are coupled.

14p viathena2711 10-10-2019 12 0   Download

In this work, the commercial Computational Fluid Dynamics (CFD), ANSYS-Fluent V.14.5 has been used to illustrate the effects of rudder and blade pitch on hydrodynamic performances of a propeller. At first, the characteristic curves of a container ship propeller are computed. Then, effects of rudder on hydrodynamic performances of the propeller in the both cases of the propeller with and without rudder have been investigated.

13p viathena2711 10-10-2019 24 2   Download

In this paper, we describe a physicomathematical model of the processes that occur in a sodium circuit with a variable flow cross-section in the case of a water leak into sodium. The application area for this technique includes the possibility of analyzing consequences of this leak as applied to sodiumewater steam generators in fast neutron reactors.

12p minhxaminhyeu5 30-06-2019 13 1   Download

In this study, we proposed a newly designed sulfuric acid transfer system for the sulfur-iodine (SI) thermochemical cycle. The proposed sulfuric acid transfer system was evaluated using a computational fluid dynamics (CFD) analysis for investigating thermodynamic/hydrodynamic characteristics and material properties. This analysis was conducted to obtain reliable continuous operation parameters; in particular, a thermal analysis was performed on the bellows box and bellows at amplitudes and various frequencies (0.1, 0.5, and 1.0 Hz).

10p minhxaminhyeu5 30-06-2019 18 1   Download

The dinoflagellate species Gonyaulax pacifica Kofoid is reported for the first time from northeastern Mediterranean coast of Turkey; it has not previously been reported for any Turkish coastal waters. The morphological characteristics of this species are described in detail and information about its ecological and biogeographical distribution is given.

4p vibasque27 29-03-2019 17 0   Download

This paper proposes a hydrodynamic/sediment model for simulating bedload sediment through a river section. Firstly, flow characteristics such as depth-averaged velocity were obtained by solving the governing equation, which is derived from the Reynolds equations and allows for taking into account the gravity, bed shear stress, turbulent diffusion force and secondary flow in calculations.

8p thihuynh3006 16-03-2018 47 0   Download

This paper presents the numerical simulation of a recently developed Remotely Operated Vehicle (ROV) utilising theoretical and experimental work to obtain the vehicle’s hydrodynamic characteristics and a LabVIEW based numerical model to predict its behaviour.

14p dieutringuyen 07-06-2017 37 1   Download

Volume II of the Handbook of Lubrication (Tribology) provides coverage of basic theory involved in friction, wear, and lubrication; characteristics and application practices for lubricants; and design principles for lubricated machine elements such as bearings, gears, couplings, and seals.

658p trinhvang 18-01-2013 85 30   Download