Submitted to J. Crystal Growth Time-dependent, three-dimensional flow and mass transport during solution growth of potassium titanyl phosphate Bhushan Vartak, Andrew Yeckel, and Jeffrey J. Derby ∗ Department of Chemical Engineering and Materials Science and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0132, USA November 30, 2004 Abstract A finite-element, numerical model is used to compute time-dependent, three-dimensional fluid flow, mass transfer, and growth kinetics in the potassium titanyl phosphate (KTP) so- lution crystal growth system of Bordui et al. The effects of a periodically-reversing crystal rotation schedule are analyzed for two different crystal-mounting geometries. Results suggest a lower probability of the occurrence of defects when the mounting geometry is designed to take advantage of periodic flow reversal effects on the supersaturation field. PACS: 02.60.Cb; 02.70.Dh; 47.11.+j; 81.10.Dn Keywords: Computer simulation; Convection; Fluid flows; Mass transfer; Stirring; Growth from solutions * Corresponding author. Fax: 1-612-626-7246; e-mail: derby@umn.edu 1