Translational friction coefficients of rigid, symmetric top macromolecules. Application to circular cylinders

@article{tirado79, abstract = {The hydrodynamic interaction equations and the interaction tensor that appear in the theoretical formalism for calculating translational friction coefficients of rigid particles modeled as assemblies of beads, are formulated in cylindrical coordinates. For symmetric top particles, the cylindrical shielding tensors of symmetry-equivalent beads are the same, and have only five nonzero components. This effects a great simplification with respect to the Cartesian formalism. Application is made to the end-effect correction, for translational motion of right circular cylinders modeled as stacks of rings, extrapolated to zero bead size. No appreciable changes in the translational friction coefficients are found when the hollow cylindrical models are capped at the ends with disc-shaped plates. For finite cylinders with axial ratio p>~2, our results, as well as those from other theoretical and experimental studies, are in remarkable disagreement with the previous calculations by Broersma.}, author = {Tirado, Maria M. and Garc\'{i}adelatorre, Jos\'{e} }, citeulike-article-id = {1981370}, journal = {The Journal of Chemical Physics}, keywords = {fluid-mechanics, rods, simulation}, number = {6}, pages = {2581--2587}, posted-at = {2007-11-25 16:09:02}, priority = {2}, publisher = {AIP}, title = {Translational friction coefficients of rigid, symmetric top macromolecules. Application to circular cylinders}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=JCPSA6000071000006002581000001\&idtype=cvips\&gifs=yes}, volume = {71}, year = {1979} }

TY - JOUR ID - tirado79 L3 - citeulike-article-id:1981370 TI - Translational friction coefficients of rigid, symmetric top macromolecules. Application to circular cylinders JF - The Journal of Chemical Physics VL - 71 IS - 6 SP - 2581 EP - 2587 PB - AIP N2 - The hydrodynamic interaction equations and the interaction tensor that appear in the theoretical formalism for calculating translational friction coefficients of rigid particles modeled as assemblies of beads, are formulated in cylindrical coordinates. For symmetric top particles, the cylindrical shielding tensors of symmetry-equivalent beads are the same, and have only five nonzero components. This effects a great simplification with respect to the Cartesian formalism. Application is made to the end-effect correction, for translational motion of right circular cylinders modeled as stacks of rings, extrapolated to zero bead size. No appreciable changes in the translational friction coefficients are found when the hollow cylindrical models are capped at the ends with disc-shaped plates. For finite cylinders with axial ratio p>~2, our results, as well as those from other theoretical and experimental studies, are in remarkable disagreement with the previous calculations by Broersma. KW - fluid-mechanics KW - rods KW - simulation AU - Tirado, Maria AU - Garcíadelatorre, José PY - 1979/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JCPSA6000071000006002581000001&idtype=cvips&gifs=yes ER -