Results 151 to 160 of about 8,762,839 (396)

CFD Numerical simulations of Francis turbines

Revista Facultad de Ingeniería Universidad de Antioquia, 2010
En este artículo se aborda la simulación numérica del flujo en el interior de una turbina Francis. La metodología a seguir para la simulación del flujo en una turbina Francis depende de los objetivos perseguidos: mientras que para determinar la curva ...
Santiago Laín, Manuel García, Brian Quintero, Santiago Orrego   +3 more
doaj  

Turbulent pair dispersion in the presence of gravity

New Journal of Physics, 2015
Turbulent pair dispersion of heavy particles is strongly altered when particles of two different Stokes numbers (bidisperse) are considered, and this is further compounded when a uniform gravitational acceleration is present.
Kelken Chang, Benedict J Malec, Raymond A Shaw   +2 more
doaj   +1 more source

Simulation of Heat Flow in Porous Media Using Numerical Models [PDF]

, 1968
F.R. Nicholson, W.W. Jones, Klaus Schwabe   +2 more
openalex   +1 more source

Numerical simulations of quasar absorbers [PDF]

Proceedings of the International Astronomical Union, 2005
The physical state of the intergalactic medium can be probed in great detail with the intervening absorption systems seen in quasar spectra. The properties of the Hydrogen absorbers depend on many cosmological parameters, such as the matter-power spectrum, reionisation history, ionising background and the nature of the dark matter.
openaire   +4 more sources

The effect of foot orthoses on midfoot pain and the volume of bone marrow lesions in the midfoot: a randomized mechanism of action study

Arthritis Care &Research, Accepted Article.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain and MRI‐confirmed midfoot BMLs.
Jill Halstead, Anne‐Maree Keenan, Philip G. Conaghan, Dennis McGonagle, Anthony C. Redmond   +4 more
wiley   +1 more source

Approaching the Black Hole by Numerical Simulations

Universe, 2019
Black holes represent extreme conditions of physical laws. Predicted about a century ago, they are now accepted as astrophysical reality by most of the scientific community.
Christian Fendt
doaj   +1 more source

Diffusion‐Weighted Imaging for the Evaluation of the Sacroiliac Joint in Pediatric Patients

Arthritis Care &Research, Accepted Article.
Background Maturational signal in the sacroiliac joint (SIJ) of skeletally immature youth is often misinterpreted as inflammation. Diagnostic tools that improve specificity are greatly needed. Apparent diffusion coefficient (ADC) values from diffusion‐weighted imaging (DWI), when used with standard imaging, may enhance diagnostic accuracy.
Michael L. Francavilla, Timothy G. Brandon, Dmitry Khrichenko, Rui Xiao, Nancy A. Chauvin, Asef Khwaja, Pamela F. Weiss   +6 more
wiley   +1 more source

A divergence-cleaning scheme for cosmological SPMHD simulations

, 2012
In magnetohydrodynamics (MHD), the magnetic field is evolved by the induction equation and coupled to the gas dynamics by the Lorentz force. We perform numerical smoothed particle magnetohydrodynamics (Spmhd) simulations and study the influence of a ...
A. M. Beck, Anderson, Balsara, Beck, Beck, Bonafede, Bonafede, Brandenburg, Brio, Bryan, Brüggen, Børve, Børve, Collins, Croston, Croston, Cécere, Dai, Dedner, Dolag, Dolag, Dolag, Dolag, Dolag, Dolag, Dubois, F. A. Stasyszyn, Feretti, Geng, Govoni, Govoni, Guidetti, Han, Hardcastle, Iapichino, Inogamov, K. Dolag, Katz, Keppens, Kotarba, Kraichnan, Kuchar, Londrillo, Mason, Miniati, Orszag, Pakmor, Paul, Picone, Price, Price, Price, Price, Rasia, Rosswog, Ruzmaikin, Ryu, Springel, Springel, Springel, Stone, Subramanian, Sur, Tormen, Toth, Tribble, Tricco, Vacca, Vazza, Vazza, Vazza, White, Xu, Xu   +73 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

The Numerical Simulation of Ice-Age Climate with a Global General Circulation Model [PDF]

, 1976
W. Lawrence Gates
openalex   +1 more source