TY - JOUR T1 - Multiphysics and Multimethods Problem of Rotational Glass Fiber Melt-Spinning AU - NICOLE MARHEINEKE†, JALO LILJO‡, JAN MOHRING‡, JOHANNES SCHNEBELE‡, AND RAIMUND WEGENER‡ JO - International Journal of Numerical Analysis Modeling Series B VL - 3 SP - 330 EP - 344 PY - 2012 DA - 2012/03 SN - 3 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/ijnamb/288.html KW - Rotational spinning KW - viscous thermal jets KW - fluid-structure interactions KW - fluid dynamics KW - structure mechanics KW - heat transfer KW - slender-body theory KW - Cosserat rods KW - drag models AB - Glass wool manufacturing is a multiphysics problem which requires the understanding of the rotational melt-spinning of ten thousands of viscous thermal slender jets by fast air streams. Due to its high complexity an uniform numerical treatment is impossible. In this work we present a multimethods approach that is based on an asymptotic modeling framework of slender-body theory, homogenization and surrogate models. The algorithm weakly couples melting and spinning phases via iterations. The possibility of combining commercial software and self-implemented code yields satisfying efficiency off-the-shelf. The simulation results are very promising and demonstrate the applicability and practical relevance of our approach for ongoing optimization strategies of the production processes.