Toward Complex Systems Dynamics through Flow Regimes of Multifractal Fluids

• Published in: Symmetry (Basel) Vol. 13; no. 5; p. 754
• Main Authors: Agop, Maricel, Petrescu, Tudor-Cristian, Filipeanu, Dumitru, Grigoraș-Ichim, Claudia Elena, Voda, Ana Iolanda, Zala, Andrei, Dobreci, Lucian, Baciu, Constantin, Vasincu, Decebal
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01-05-2021
• Subjects: Cayleyan metrics; complex system; Complex systems; Computational fluid dynamics; Cosmology; Drug delivery systems; drug release applications; Fluid flow; Fractals; Geometry; Hyperbolic coordinates; Hypotheses; multifractal fluids; Nonuniform flow; Partial differential equations; SL(2R)–algebra; Spacetime; System dynamics; Theory of relativity; Velocity distribution
• DOI: 10.3390/sym13050754
• EISSN: 2073-8994

In the framework of the Multifractal Theory of Motion, which is expressed by means of the multifractal hydrodynamic model, complex system dynamics are explained through uniform and non-uniform flow regimes of multifractal fluids. Thus, in the case of the uniform flow regime of the multifractal fluid, the dynamics’ description is “supported” only by the differentiable component of the velocity field, the non-differentiable component being null. In the case of the non-uniform flow regime of the multifractal fluid, the dynamics’ description is “supported” by both components of the velocity field, their ratio specifying correlations through homographic transformations. Since these transformations imply metric geometries explained, for example, by means of Killing–Cartan metrics of the SL(2R)-type algebra, of the set of 2 × 2 matrices with real elements, and because these metrics can be “produced” as Cayleyan metrics of absolute geometries, the dynamics’ description is reducible, based on a minimal principle, to harmonic mappings from the usual space to the hyperbolic space. Such a conjecture highlights not only various scenarios of dynamics’ evolution but also the types of interactions “responsible” for these scenarios. Since these types of interactions become fundamental in the self-structuring processes of polymeric-type materials, finally, the theoretical model is calibrated based on the author’s empirical data, which refer to controlled drug release applications.