Patent ID: 8571828
Filing Date: 2013-10-29
Classification: B29C,B29K,G06F

Abstract:
1. A computer-implemented method for determining orientation of fibers in a fluid having polymer chains, comprising a step of calculating using a computer processor the orientation of the fibers by taking into consideration an interaction between the fibers and the fluid, wherein the interaction between the fibers and the fluid comprises changes in configuration of the polymer chain to cause the entanglement or adsorption between the fibers and the polymer chains; wherein the interaction is represented using an expression: wherein ψ represents a probability density function of aligned fibers; represents a change in the probability density function of the aligned fibers decaying with respect to time; k represents a characteristic constant of the interaction between the fibers and the fluid; pp represents orientation tensor of a fiber; (pp) −1 represents inverse of orientation tensor pp; and represents a change in orientation tensor pp with respect to time.