Results 11 to 20 of about 136,501 (295)

Prospects for the use of herbal medicine for liver diseases

open access: yesМедицинский совет, 2014
Liver disease today is the number one digestive disease. According to WHO, there are more than 2 billion people with liver disease in the world, while in the CIS countries the registered number of people suffering from liver disease varies from 500 ...
A. N. Kazyulin, V. A. Shestakov
doaj   +1 more source

Application of Computational Fluid Dynamics Method for Cross-flow Turbine in Pico Scale

open access: yesJEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2021
Crisis electricity was a crucial issue in the rural area. Crossflow turbine (CFT) in pico in pico scale is the best option for electricity provider for rural areas.
Imam Syofi'i   +3 more
doaj   +1 more source

Hybrid RANS/LES of plane impinging jets with k-omega based models [PDF]

open access: yes, 2010
Plane impinging jets with nozzle-plate distances H/B=10 at Re=13500 and H/B=9.2 at Re=20000 are simulated with k-omega based hybrid RANS/LES models. Three ways of substitution of the turbulent length scale by the local grid size in the LES mode of the ...
Dick, Erik, Kubacki, Slawomir
core   +2 more sources

RANS Simulation of Local Strong Sandstorms Induced by a Cold Pool with Vorticity

open access: yesAtmosphere, 2020
Local strong sandstorms (LSSs) in northwestern China often occur suddenly in tens of minutes during the late afternoon and by dusk. Observations and theoretical studies have shown the trigger role of cold-air pools over desert areas for the occurrence of
Yuanping He   +7 more
doaj   +1 more source

EXPERIMENTAL AND NUMERICAL INVESTIGATION ON MANEUVERING PERFORMANCE OF SMALL WATERPLANE AREA TWIN HULL

open access: yesBrodogradnja, 2021
Free running model tests and a system-based method are employed to evaluate maneuvering performance for a Small Waterplane Area Twin Hull (SWATH) ship in this paper.
Kun Dai, Yunbo Li
doaj   +1 more source

RANS Study on the Impact of Equivalence Ratio on Natural Gas/Diesel-Fueled Combustion in RCCI Engine [PDF]

open access: yesJournal of Applied and Computational Mechanics
The primary reason in favor of Reactivity Controlled Compression Ignition (RCCI) is that combustion occurs at low temperature, leading to low thermal NOx. Using the RCCI approach is highly demanded due to stringent emission laws.
Fathi Hamdi   +2 more
doaj   +1 more source

Modelling the Wake Flow Behind a Model of Horizontal Axis Wind Turbine using RANS Approach: A Comparative Study [PDF]

open access: yesJournal of Engineering Research - Egypt, 2020
Steady CFD simulations, which is based on Reynolds Average Navier-Stokes (RANS) approach, were conducted for a model of Horizontal Axis Wind Turbine (HAWT) and compared with experimental data in order to assess the accuracy of these models in simulating ...
Abd Elnaby Kabeel   +3 more
doaj   +1 more source

Comparative evaluation of RANS eddy-viscosity turbulence models for calculating the silicon melt convection in crystal growth systems

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In the paper, the results of RANS calculations of turbulent convection in silicon melt, obtained using several eddy-viscosity turbulence models, have been compared with previously published ILES eddy-resolving calculation data for similar conditions.
Borisov Dmitry, Kalaev Vladimir
doaj   +1 more source

Revisiting the Reynolds-averaged Navier–Stokes equations

open access: yesOpen Physics, 2022
This study revisits the Reynolds-averaged Navier–Stokes (RANS) equations and finds that the existing literature is erroneous regarding the primary unknowns and the number of independent unknowns in the RANS. The literature claims that the Reynolds stress
Sun Bohua
doaj   +1 more source

Comparison of experimental and numerical sloshing loads in partially filled tanks [PDF]

open access: yes, 2009
Sloshing phenomenon consists in the movement of liquids inside partially filled tanks, whichgenerates dynamic loads on the tank structure. Resulting impact pressures are of great importance in assessingstructural strength, and their correct evaluation ...
Brizzolara, S.   +9 more
core   +3 more sources

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