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Information × Registration Number 0218U006855, 0115U001883 , R & D reports Title Modeling of mass transfer in complex network structures to determine optimal parameters of the dynamic modes control popup.stage_title Head Chaplya Ye.Ya., Registration Date 24-09-2018 Organization Centre of Mathematical Modelling Institute of Applied Problems Mechanic and Mathematic named after Ya. S.Pidstryhach NAS Ukraine popup.description2 A complex of mathematical models describing interconnected non-stationary nonlinear transfer processes in multivariate heterogeneous multidimensional structures was constructed and studied. The diffusion of the impurity substance in a two-phase layer with randomly located spherical inclusions is investigated on the basis of the approach by which random inhomogeneities are considered as internal sources. The obtained calculation formulas allow to carry out computer simulation of the propagation of impurity particles in weakly and strongly porous structures. The calculated dependences of the new scheme of the finite element method in displacements of the points of the middle surfaces of the layers and the interlayer contact stresses are constructed. Numerous methods for calculating the strength of shell structures from layered composite materials that contain hyper-elastic layers with nonideal interlayer contact are developed. Methods of determination of latent periodicities in relation to the numerical series that occur, in particular at the frequency of cardiac contractions in different periods of training and competitive activity, are developed. The process of fluid flow in flexible tubes, in particular large blood vessels, is investigated for various methods of taking (passing) a liquid along the tube. Product Description popup.authors Пянило Ярослав Данилович Чапля Євген Ярославович Чернуха Ольга Юріївна popup.nrat_date 2020-04-02 Close