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The Generic Structure of the Optic Flow Field

Journal of Mathematical Imaging and Vision, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ole Fogh Olsen, Mads Nielsen
openaire   +3 more sources

Adapted Flow Field Structures for PEFC

Journal of The Electrochemical Society, 2010
This study investigates the effects of the channel and rib dimensions of the flow field on the performance of polymer electrolyte fuel cells (PEFCs). The development of a channel/rib geometry, where dimensions are adapted to local conditions along the reaction pathway, is described. The optimal channel/rib sizes at a given position along the channel is
Reum, Mathias   +2 more
openaire   +2 more sources

Structure visualization for a gas-liquid flow

Journal of Visualization, 2006
When considering the flow of a two-phase mixture, the complete characterization of its behavior requires not only the evaluation of its temperature and pressure evolutions, but also the description of the distribution of the phases (the so-called "flow structure").
AROSIO, SERGIO   +1 more
openaire   +3 more sources

Visualizing Transport Structures of Time-Dependent Flow Fields

IEEE Computer Graphics and Applications, 2008
This article focuses on the transport characteristics of physical properties in fluids-in particular, visualizing the finite-time transport structure of property advection. Applied to a well-chosen set of property fields, the proposed approach yields structures giving insights into the underlying flow's dynamic processes.
Kuangyu Shi   +4 more
openaire   +3 more sources

Study on Flow Field Structure in Axisymmetric Radial Flow

2013 International Conference on Mechanical and Automation Engineering, 2013
This paper focuses on laminar axisymmetric radial flow field structure influenced by inlet pipe Reynolds number and geometrical aspect ratio in the spacing region which consists of two parallel discs. Numerical method and particle image velocimetry technique have been employed to analysis the evolution of flow field structure at different Reynolds ...
Liu Zhaomiao, Li Jinhui
openaire   +1 more source

The structure and evolution of flow fields and other vector fields

Journal of Physics A: Mathematical and General, 1978
As the field evolves with time, discrete events occur which alter the patterns of folds and cusps. Thom's (1975) list of elementary catastrophes describes these events when the changes in the field are the result of changes of an underlying scalar generating function.
Thorndyke, Alan   +2 more
openaire   +1 more source

The structure of the optic flow field

1998
The optic flow field is defined as preserving the intensity along flow-lines. Due to singularities in the image at fixed time, poles are created in the optic flow field. In this paper we describe the generic types of flow singularities and their generic interaction over time.
Nielsen, M., Olsen, O.F.
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Flow field structure design for redox flow battery: Developments and Prospects

Journal of Energy Storage
Meng-Yue Lu   +7 more
openaire   +3 more sources

Detection of second-order structure in optical flow fields

Journal of the Optical Society of America A, 1997
We investigate how well the direction of the expansion gradient and the direction of a spatial step in expansion can be extracted from a complex optical flow field. The expansion gradient is an invariant of the second-order structure under rotations of the image plane.
Te Pas, S.F.   +2 more
openaire   +3 more sources

The structure of the vorticity field in homogeneous turbulent flows

Journal of Fluid Mechanics, 1987
The structure of the vorticity fields in homogeneous turbulent shear flow and various irrotational straining flows is examined using results from direct numerical simulations of the unsteady, incompressible Navier-Stokes equations with up to 128 × 128 × 128 grid points.
Michael M. Rogers, Parviz Moin
openaire   +1 more source

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