Results 41 to 50 of about 85,769 (303)

Entropy splitting for high-order numerical simulation of compressible turbulence [PDF]

open access: yes, 2002
A stable high-order numerical scheme for direct numerical simulation (DNS) of shock-free compressible turbulence is presented. The method is applicable to general geometries. It contains no upwinding, artificial dissipation, or filtering.
Li, Q.   +5 more
core   +1 more source

Compression2: compressed sensing with compressed coil arrays [PDF]

open access: yesJournal of Cardiovascular Magnetic Resonance, 2012
Summary Compressed sensing with PCA based coil compression is a promising way to obtain high quality radial perfusion images without incurring the high computation cost and memory requirements associated with large multi-coil arrays Background Imaging with large coil arrays is desirable for rapid imaging and high signal to noise ratio.
Adluru Ganesh, DiBella Edward
openaire   +2 more sources

A Dilating Vortex Particle Method for Compressible Flow with Applications to Aeroacoustics [PDF]

open access: yes, 2002
Vortex methods have become useful tools for the computation of incompressible fluid flow. In the present work, a vortex particle method for the simulation of unsteady two-dimensional compressible flow is developed and applied to several problems.
Eldredge, Jeffrey D.
core   +1 more source

An approximate formula for the H/V ratio of Rayleigh waves in compressible pre-stressed elastic half-spaces coated with a thin layer

open access: yesVietnam Journal of Mechanics, 2018
This paper is concerned with the propagation of Rayleigh waves in a compressible pre-stressed elastic half-space coated with a thin compressible pre-stressed elastic layer. The main purpose of the paper is to establish an approximate formula for the H/V
Nguyen Thi Khanh Linh   +2 more
doaj   +1 more source

Semi-Small Compressible Modules and Semi-Small Retractable Modules

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
Let  be a commutative ring with 1 and  be left unitary  . In this paper we introduced and studied concept of semi-small compressible module (a     is said to be semi-small compressible module if  can be embedded in every nonzero semi-small submodule of .
Mohammed Baqer Hashim Al Hakeem   +2 more
doaj   +1 more source

Computational Analysis of Cavitating Flows around a Marine Propeller Using Incompressible, Isothermal Compressible, and Fully Compressible Flow Solvers

open access: yesJournal of Marine Science and Engineering, 2023
This research investigates cavitation around a marine propeller, employing computational fluid dynamic (CFD) solvers, including an incompressible, isothermal compressible, and fully compressible flow.
Joseph Mwangi Ng’aru, Sunho Park
doaj   +1 more source

A Method of Solving Compressible Navier Stokes Equations in Cylindrical Coordinates Using Geometric Algebra

open access: yesMathematics, 2019
A method of solution to solve the compressible unsteady 3D Navier-Stokes Equations in cylindrical co-ordinates coupled to the continuity equation in cylindrical coordinates is presented in terms of an additive solution of the three principle directions ...
Terry E. Moschandreou
doaj   +1 more source

Time to Compress the Time to First Compression [PDF]

open access: yesJournal of the American Heart Association, 2018
Out‐of‐hospital cardiac arrest (OHCA), often described as the most time‐sensitive and life‐threatening medical condition, remains a major public health problem.[1][1] Survival remains low in most settings, with enormous variation in community outcomes.[2][2] Although several ...
Bentley J. Bobrow, Micah Panczyk
openaire   +3 more sources

On large bending deformations of transversely isotropic rectangular elastic blocks [PDF]

open access: yes, 2007
In this paper we examine the classical problem of finite bending of a rectangular block of elastic material into a sector of a circular cylindrical tube in respect of compressible transversely isotropic elastic materials.
Kassianidid, F.   +3 more
core   +1 more source

Modeling Hypersonic Flow over a Spiked Blunt Body Using Adaptive Mesh Refinement on an Overset Grid [PDF]

open access: yesJournal of Applied Fluid Mechanics
In comparison to conventional single-grid methods, grid-adaptive overset techniques offer a strong, flexible, and efficient solution approach for computational fluid dynamics in the modeling of flows with complex interactions.
M. El Hajj Ali Barada, B. Celik
doaj   +1 more source

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