Results 21 to 30 of about 2,577,081 (317)

Liquid phase oxidation chemistry in continuous-flow microreactors [PDF]

, 2016
Continuous-flow liquid phase oxidation chemistry in microreactors receives a lot of attention as the reactor provides enhanced heat and mass transfer characteristics, safe use of hazardous oxidants, high interfacial areas, and scale-up potential. In this
Luque, R Rafael, Shang, M., Gemoets, HPL Hannes, Minjing Shang, Hessel, V., Noël, T Timothy, Su, Y., Luque, R., Gemoets, H.P.L., Timothy Noël, Rafael Luque, Yuanhai Su, Volker Hessel, Noel, T., Shang, M Minjing, Su, Y Yuanhai, Hessel, V, Hannes P. L. Gemoets   +17 more
core   +1 more source

GMAW shielding gas flow optimisation by refinement of nozzle geometry [PDF]

, 2013
With an ongoing demand to improve the efficiency of the gas metal arc welding process, steps are being taken to reduce the shielding gas consumption. However, sufficient shielding gas coverage of the weld region is essential for the generation of high ...
S.W. Campbell, A.M. Galloway, Campbell, Stuart, Galloway, Alexander, N.A. McPherson, McPherson, Norman   +5 more
core   +1 more source

The dark side of flow: a qualitative study on dependence in big wave surfing [PDF]

, 2009
Flow has been described within sport psychology as an optimal state underpinning peak performance. However, the consequences of experiencing flow may not always be beneficial.
Partington, Sarah, Partington, Elizabeth, Olivier, Steve   +2 more
core   +1 more source

Mixed-Fidelity Design Optimization of Hull Form Using CFD and Potential Flow Solvers

Journal of Marine Science and Engineering, 2021
The present paper proposes a new mixed-fidelity method to optimize the shape of ships using genetic algorithms (GA) and potential flow codes to evaluate the hydrodynamics of variant hull forms, enhanced by a surrogate model based on an Artificial Neural ...
Gregory J. Grigoropoulos, Christos Bakirtzoglou, George Papadakis, Dimitrios Ntouras   +3 more
doaj   +1 more source

Towards High-Performance Linear Potential Flow BEM Solver with Low-Rank Compressions

Energies
The interaction of water waves with floating bodies can be modeled with linear potential flow theory and numerically solved with the boundary element method (BEM).
Matthieu Ancellin, Pierre Marchand, Frédéric Dias   +2 more
doaj   +1 more source

Increase of the Ship Fuel Consumption Due to Added Resistance in Waves

Journal of Sustainable Development of Energy, Water and Environment Systems, 2017
Added resistance in waves is the second-order steady force dependant on the ship motions. It significantly affects ship operability and cause speed loss. Therefore the required power and fuel consumption of a ship advancing in a seaway are increasing. In
Nastia Degiuli, Ivan Ćatipović, Ivana Martić, Andreja Werner, Većeslav Čorić   +4 more
doaj   +1 more source

The impact of the Dirichlet boundary conditions on the convergence of the discretized system of nonlinear equations for potential problems

Computer Assisted Methods in Engineering and Science, 2017
The purpose of this paper is the analysis of numerical approaches obtained by describing the Dirichlet boundary conditions on different connected components of the computational domain boundary for potential flow, provided that the domain is a rectangle.
Jan Kucwaj
doaj   +1 more source

A Numerical Study on Hydrodynamic Performance of an Inclined OWC Wave Energy Converter with Nonlinear Turbine–Chamber Interaction Based on 3D Potential Flow

Journal of Marine Science and Engineering, 2020
In this study, a time-domain numerical method based on three-dimensional potential flow was developed to analyze the hydrodynamic characteristics of an inclined oscillating-water-column (OWC) wave energy converter (WEC).
Jeong-Seok Kim, Bo Woo Nam, Kyong-Hwan Kim, Sewan Park, Seung Ho Shin, Keyyong Hong   +5 more
doaj   +1 more source

Importance of vegetation, topography and flow paths for water transit times of base flow in alpine headwater catchments [PDF]

, 2013
The mean transit time (MTT) of water in a catchment gives information about storage, flow paths, sources of water and thus also about retention and release of solutes in a catchment.
M. H. Mueller, C. Alewell, Weingartner, R., Mueller, Matthias H., Alewell, C., Weingartner, Rolf, R. Weingartner, Mueller, M. H.   +7 more
core   +1 more source

Analytical and Numerical Model of Sloshing in a Rectangular Tank Subjected to a Braking

Mathematics, 2023
This paper examines the movement of waves that occur in a fuel tank—both with and without a wave breaker—when a car is travelling at a constant speed and then suddenly brakes. This phenomenon is known as slosh noise, and the paper presents an analysis of
Oana-Maria Balaş, Cristian Vasile Doicin, Elena Corina Cipu   +2 more
doaj   +1 more source