Vortex Analysis Library (VALIB)

0468628 - MÚ 2017 RIV CZ eng L4 - Software
Šístek, Jakub
Vortex Analysis Library (VALIB).
Interní kód: valib ; 2016
Technické parametry: Open source software package under the New BSD License
Ekonomické parametry: The software contains state-of-the-art methods for vortex identification. These allow for better identification and visualization of vortices in applications such as flows around vehicles or in turbomachinery, leading to better insight into the vortical structures and potentially to more energy efficient designs.
Grant CEP: GA ČR GA14-02067S
Institucionální podpora: RVO:67985840
Klíčová slova: vortex identification * average corotation * residual vorticity * residual strain-rate
Kód oboru RIV: BK - Mechanika tekutin
http://users.math.cas.cz/~sistek/software/valib/

The Vortex Analysis Library (VALIB) is a collection of functions intended for computing local vortex identification criteria out of the velocity gradient at a point in 3D. The project contains some established methods as well as some recently developed methods. Functions have a common interface based on the velocity gradient at a point in 3D, which is a 3x3 matrix stored in a column-major format. On the output from each function, there is the demanded quantity - one or more scalars, a vector of length 3, or a 3x3 matrix, depending on the nature of the quantity. The intended use of the library is to evaluate a vortex identification quantity for each point in a 3-D flow field by calling a VALIB function at each of these points and storing the result. These values can be then used for postprocessing, e.g. by plotting isosurfaces of the scalar quantities.
Trvalý link: http://hdl.handle.net/11104/0266432