Results 101 to 110 of about 1,608,691 (253)

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

open access: yessteel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang   +3 more
wiley   +1 more source

CFD Analysis of a V-Shaped Desktop Fan for Near-field Control of Infected Respiratory Cloud [PDF]

open access: yesE3S Web of Conferences
The respiratory cloud of an infected person contains droplets of mucosal and salivary fluid carrying germs. As this cloud spreads from the emission point, droplets accumulate, and their concentration increases in the room, unless dilution, adequate ...
Rasam Hamed   +2 more
doaj   +1 more source

Eulerian and Lagrangian Comparison of Wind Jets in the Tokar Gap Region

open access: yesFluids, 2020
The Lagrangian and Eulerian structure and dynamics of a strong wind event in the Tokar Gap region are described using a Weather Research and Forecasting (WRF) model hindcast for 2008. Winds in the Tokar Gap reach 25 m s−1 and remain coherent as a jet far
Larry J. Pratt   +3 more
doaj   +1 more source

Parameterized Rural Postman Problem [PDF]

open access: yes, 2014
The Directed Rural Postman Problem (DRPP) can be formulated as follows: given a strongly connected directed multigraph $D=(V,A)$ with nonnegative integral weights on the arcs, a subset $R$ of $A$ and a nonnegative integer $\ell$, decide whether $D$ has a
Gutin, Gregory   +2 more
core  

Parameterized Edge Hamiltonicity

open access: yes, 2014
We study the parameterized complexity of the classical Edge Hamiltonian Path problem and give several fixed-parameter tractability results. First, we settle an open question of Demaine et al.
AA Bertossi   +27 more
core   +1 more source

Computational Fluid Dynamic‐Discrete Element Method Study of Biocarbon Injection in Electric Arc Furnaces Using Shrouding Jet Injectors

open access: yessteel research international, EarlyView.
This study uses coupled computational fluid dynamic‐discrete element method (CFD–DEM) simulations to investigate biomass particle injection through a shrouded lance in electric arc furnaces (EAFs). It examines how biomass properties, feed rate, and lance design affect particle dispersion and delivery efficiency.
Tiago F. Lins, Allan Runstedtler
wiley   +1 more source

Cavitation and erosion effects on hydraulic performances of a submersible drainage pump

open access: yesAlexandria Engineering Journal
Hydraulic performance and operational stability of submersible drainage pumps can be affected by cavitation and erosion when used for draining water from buildings.
Md Rakibuzzaman   +5 more
doaj   +1 more source

Numerical Analysis of Erosion Caused by Biomimetic Axial Fan Blade

open access: yesAdvances in Materials Science and Engineering, 2013
Damage caused by erosion has been reported in several industries for a wide range of situations. In the present work, a new method is presented to improve the erosion resistance of machine components by biomimetic method.
Jun-Qiu Zhang   +5 more
doaj   +1 more source

Closed models, strongly connected components and Euler graphs

open access: yes, 2016
In this paper, we continue our study of closed models defined in categories of graphs. We construct a closed model defined in the cat-egory of directed graphs which characterizes the strongly connected components.
Tsemo, Aristide
core   +1 more source

Trial‐Based Hemolysis Modeling to Investigate Operating Modes of Continuous‐Flow LVADs

open access: yesArtificial Organs, EarlyView.
This work presents a methodology for determining online‐capable hemolysis models for continuous‐flow LVADs, derived from in vitro trials. The models are based on fitting a modified power law and applying the Lagrangian approach. They assist clinicians in selecting treatment strategies that minimize hemolysis, as demonstrated with the Sputnik1 LVAD ...
Patrick Borchers   +2 more
wiley   +1 more source

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