Results 11 to 20 of about 730,182 (230)

The numerical treatment of curved boundary surfaces in an unfitted grid formulation for computational fluid dynamics [PDF]

open access: yes, 1999
In this thesis a new Cartesian cut-cell scheme has been presented which solves the in- compressible Navier-Stokes equations using a finite volume approach and a staggered grid.
Gao, Zaixiang
core   +7 more sources

A comparative study of immersed-boundary interpolation methods for a flow around a stationary cylinder at low Reynolds number [PDF]

open access: yes, 2013
The accuracy and computational efficiency of various interpolation methods for the implementation of non grid-confirming boundaries is assessed. The aim of the research is to select an interpolation method that is both efficient and sufficiently accurate
Wissink, J   +5 more
core   +6 more sources

Evolutionary Computing within Grid Environment. [PDF]

open access: yes, 2007
Evolutionary computing (EC) techniques such as genetic algorithm (GA), genetic programming (GP), evolutionary programming (EP) and evolution strategies (ES) mimic nature through natural selection to perform complex optimisation processes that require ...
Tiwari, Ashutosh   +2 more
core   +8 more sources

Using a desktop grid to support simulation modelling [PDF]

open access: yes, 2006
Simulation is characterized by the need to run multiple sets of computationally intensive experiments. We argue that Grid computing can reduce the overall execution time of such experiments by tapping into the typically underutilized network of ...
Mustafee, N, Taylor, S J E
core   +7 more sources

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI. [PDF]

open access: yesAdv Sci (Weinh)
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Arratia P   +7 more
europepmc   +2 more sources

A Computational Model on Cartesian Adaptive Grid for Thrombosis Simulation

open access: yesIEEE Access, 2022
Computer simulation has been an effective experimental method to study the mechanism of thrombosis. As a computational model is the core of the simulation, a hybrid computational model which focuses on improving the modelling of thrombus growth is ...
Chaoqing Ma   +3 more
doaj   +1 more source

Cartesian Grid Method for Compressible Flow Simulation [PDF]

open access: yes, 2012
The Cartesian grid method is an alternative to the existing methods to solve a physical problem governed by partial differential equations (PDEs) computationally.
Farooq, Muhammad Asif
core   +1 more source

Blood Flow Simulation System with Interaction between Blood Flow and Blood Vessel Wall using Image Based Cartesian Grid

open access: yesJournal of Biomechanical Science and Engineering, 2008
For the simulation of the fluid-structure interaction (FSI) between the blood flow and blood vessel walls, we have examined the voxel-based FSI method. This method uses a Cartesian grid, called voxel, made from medical images. Further, we have tested the
Kiyoshi KUMAHATA   +2 more
doaj   +1 more source

Improved sampling scheme for LiDAR in Lissajous scanning mode

open access: yesMicrosystems & Nanoengineering, 2022
MEMS light detection and ranging (LiDAR) is becoming an indispensable sensor in vehicle environment sensing systems due to its low cost and high performance.
Junya Wang, Gaofei Zhang, Zheng You
doaj   +1 more source

Non-Cartesian Frame Transformation-Based Control of a Three-Phase Power Converter During Unbalanced Voltage Dip – Part I: Transformation Principles

open access: yesPower Electronics and Drives, 2019
One of the currently investigated problems in power electronics-based electrical energy conversion is proper operation of electronic converters during grid voltage imbalance and harmonics.
Iwański Grzegorz   +2 more
doaj   +1 more source

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