Results 61 to 70 of about 255,664 (201)

Embedding of a Blade-Element Analytical Model into the SHYFEM Marine Circulation Code to Predict the Performance of Cross-Flow Turbines

open access: yesJournal of Marine Science and Engineering, 2020
Our aim was to embed a 2D analytical model of a cross-flow tidal turbine inside the open-source SHYFEM marine circulation code. Other studies on the environmental impact of Tidal Energy Converters use marine circulation codes with simplified approaches ...
Micol Pucci   +4 more
doaj   +1 more source

ExoCubed: A Riemann-solver-based Cubed-sphere Dynamic Core for Planetary Atmospheres

open access: yesThe Astrophysical Journal
The computational fluid dynamics on a sphere is relevant to global simulations of geophysical fluid dynamics. Using the conventional spherical–polar (or lat–lon) grid results in a singularity at the poles, with orders-of-magnitude-smaller cell sizes at ...
Sihe Chen, Cheng Li
doaj   +1 more source

A Laboratory Model of the Large-Scale Atmospheric Circulation of Tidally Locked Exoplanets

open access: yesAtmosphere
We report on a novel fluid dynamics experiment configuration based on a modified version of the differentially heated rotating annulus, a widely used laboratory model of the large-scale mid-latitude atmospheric circulation.
Bálint Vass   +2 more
doaj   +1 more source

Computational fluid dynamics models and congenital heart diseases

open access: yesFrontiers in Pediatrics, 2013
Mathematical modelling is a powerful tool to investigate hemodynamics of the circulatory system. With improving imaging techniques and detailed clinical investigations, it is now possible to construct patient-specific models of reconstructive surgeries ...
Giancarlo ePennati   +3 more
doaj   +1 more source

Extended Kelvin theorem in relativistic magnetohydrodynamics [PDF]

open access: yes, 2000
We prove the existence of a generalization of Kelvin's circulation theorem in general relativity which is applicable to perfect isentropic magnetohydrodynamic flow. The argument is based on a new version of the Lagrangian for perfect magnetohydrodynamics.
Bekenstein, Jacob D., Oron, Asaf
core   +1 more source

The wake dynamics and flight forces of the fruit fly Drosophila melanogaster [PDF]

open access: yes, 1996
We have used flow visualizations and instantaneous force measurements of tethered fruit flies (Drosophila melanogaster) to study the dynamics of force generation during flight.
Dickinson, Michael H., Götz, Karl G.
core  

Stochastic Structural Stability Theory applied to roll/streak formation in boundary layer shear flow

open access: yes, 2010
Stochastic Structural Stability Theory (SSST) provides an autonomous, deterministic, nonlinear dynamical system for evolving the statistical mean state of a turbulent system.
Alfredsson   +3 more
core   +2 more sources

Evaluating airflow dynamics in common vertical circulation spaces of a multi-floor apartment building for mitigating airborne infection risks: A CFD modeling study

open access: yesHeliyon
As more people increasingly inhabit indoor spaces, the importance of interior environment design has grown significantly. The focus of this research is to assess the air flow and air change per hour (ACH) within common service vertical circulation spaces
Bushra Obeidat, Mai Hathal Al-Zuriqat
doaj   +1 more source

Reverse Circulation Drilling Method Based on a Supersonic Nozzle for Dust Control

open access: yesApplied Sciences, 2016
To reduce dust generated from drilling processes, a reverse circulation drilling method based on a supersonic nozzle is proposed. The suction performance is evaluated by the entrainment ratio.
Dongyu Wu   +6 more
doaj   +1 more source

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