STRONG COUPLING IN MODELING SOLID-FLUID INTERACTION IN PAK SOFTWARE - THEORY AND SELECTED APPLICATIONS
Finite element (FE) modeling the motion of deformable bodies within a fluid, as well as the interaction between the bodies, has been a continuous challenge over the years. There are in principle two approaches – loose and strong coupling between the FE models of the two domains, with their advantages and drawbacks. We here present our concept...
By Velibor Isailović, Miljan Milošević, Nikola Kojić, Miloš Kojić
A COMPUTATIONAL MODEL DEVELOPED TO DEMONSTRATE THAT DURING THE SPIDER SILK SPINNING INTERNAL DIFFUSION GOVERNS WATER REMOVAL – A PROCESS CENTRAL TO THE GENERATION OF SPIDER SILK’S EXCEPTIONAL MECHANICAL PROPERTIES
Solvent removal by diffusion from a polymer solution occurs in various technological processes, such dry spinning of synthetic silk-like fibers. There, it is important to determine the diffusion coefficient which is dependent on the solvent concentration, assuming the validity of Fick’s law. In order to prove the internal diffusion within the...
By Nikola Kojić, Aleksandar Kojić, Miloš Kojić