Results 61 to 70 of about 1,075,600 (388)

Biomimetic Chemotactic Motion of Self‐Assembling Doublet Microrobots

open access: yesAdvanced Intelligent Systems, EarlyView.
This article studies the shape‐dependent chemotaxis of different morphologies including self‐assembled doublet microswimmers that exhibit autonomous movement in hydrogen peroxide H2O2 gradients. Without the need for complex material preparation a novel type of chemotactic active matter is produced, which allows the separation of propulsion and cargo ...
Zuyao Xiao   +2 more
wiley   +1 more source

Investigation of entrance length in circular and noncircular conduits by computational fluid dynamics simulation [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2014
This study estimated entrance length of circular and noncircular conduits, including circle, triangle, square and hexagon cross-sectional conduit, by using computational fluid dynamics (CFD).
Pimpun Tongpun   +2 more
doaj  

CFD Investigation of Industrial Gas-liquid Preneutralizer Based on a Bioreactor Benchmark for Spargers Optimization

open access: yesChemical Engineering Transactions, 2022
In this paper, a benchmark study between chemical and biochemical reactors is carried out using Computational Fluid Dynamics (CFD) approach.
Safae Elmisaoui   +4 more
doaj   +1 more source

Multicluster Distributed Optimization Strategy for Turbine Wake Environment

open access: yesAdvanced Intelligent Systems, EarlyView.
This article studies the wake analysis of wind farms in different aspects, including basic methods, clustering optimization, and wake optimization. Through multiclustering, the wake optimization in a specific wind farm environment is explored. And focusing on the time cost and other issues that need to be solved in practical applications, targeted ...
Zhenping Yu   +5 more
wiley   +1 more source

Study on the Accuracy of RANS Modelling of the Turbulent Flow Developed in a Kaplan Turbine Operated at BEP. Part 1 - Velocity Field

open access: yesJournal of Applied Fluid Mechanics, 2019
This paper investigates the accuracy of Reynolds-averaged Navier-Stokes (RANS) turbulence modelling applied to complex industrial applications. In the context of the increasing instability of the energy market, hydropower plants are frequently working at
R. G. Iovănel   +2 more
doaj  

Dynamic flow analysis using an OpenFOAM based CFD tool: Validation of Turbulence Intensity in a testing site

open access: yesITM Web of Conferences, 2014
The presenting paper investigates on the validation of the turbulence intensity (TI) modeled by a CFD tool. Six meteorological masts, equipped with cup anemometers, have been used for the purpose. Three different turbulence closure schemes, which are the
Casella Livio   +4 more
doaj   +1 more source

Two-equation modeling of turbulent rotating flows [PDF]

open access: yes, 2005
The possibility to take into account the effects of the Coriolis acceleration on turbulence is examined in the framework of two-equation eddy-viscosity models.
Carbonneau, Xavier   +3 more
core   +2 more sources

Multiple model predictive control for offshore wind turbines operating in the full‐load range

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper presents a multiple model predictive control (MMPC) strategy based on an individual blade pitch (IBP) mechanism to control floating offshore wind turbines (FOWTs) when operating in the full‐load range (above the rated wind speed).
Milad Abbasi, Nasser Sadati
wiley   +1 more source

Numerical Modelling of Non-isotropic Stratified Flows Using an Explicit Algebraic Reynolds Stress Turbulence Model (EARSM)

open access: yesنشریه مهندسی دریا, 2015
Flows of natural hydro-environments are usually turbulent and mostly stratified, like the flows in lakes, reservoirs, estuaries and atmosphere to name a few. In stratified flows due to the buoyancy forces, the turbulent stresses are usually non-isotropic.
mohammadreza amiri, Kourosh hejazi
doaj  

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