Predicting the Permeability of Textile Reinforcements via a Hybrid Navier- Stokes/brinkman Solver
نویسنده
چکیده
Numerical computation of textile permeability is important for composite manufacturing. Using Darcy’s law, permeability can be derived from a simulation of the fluid flow, i.e. after solving the Stokes, Navier-Stokes or Brinkman equations. The latter allow to model intra-yarn flow in case of permeable yarns. In this paper we present a numerical method for the calculation of the permeability of textile models based on a finite difference discretisation of the partial differential equations. Two different formulas for the calculation of the local permeability are discussed. Theoretical, numerical and in particular experimental validation is presented.
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