TY - GEN
T1 - Investigation of turbulent melt flow in a crystal growth system
AU - Wang, Dali
AU - Flaherty, Joseph E.
AU - Jansen, Kenneth E.
AU - Shepherd, Mark
PY - 2004
Y1 - 2004
N2 - Melt flows associated with a Czochralski crystal growth process was investigated to better understand the transition from a steady laminar regime to an unsteady one as the Grashof number increases. The kinetic energy of the flow as a function of time was examined as an indication of stability. Three-dimensional solutions were interpolated onto a two-dimensional unstructured mesh to compute the Reynolds average mean flow and its fluctuations. Our simulations showed that the transition to unsteady three-dimensional flow begins at a Grashof number of approximately 3.0 million. At higher Grashof numbers (e.g., 6.6 million), the melt flow is fully unsteady, three-dimensional turbulent flow. The simulations further indicated that the melt flow at a Grashof number of 6.6 million is statistically stable, which suggested the Reynolds quasi-steady assumption is valid in this case.
AB - Melt flows associated with a Czochralski crystal growth process was investigated to better understand the transition from a steady laminar regime to an unsteady one as the Grashof number increases. The kinetic energy of the flow as a function of time was examined as an indication of stability. Three-dimensional solutions were interpolated onto a two-dimensional unstructured mesh to compute the Reynolds average mean flow and its fluctuations. Our simulations showed that the transition to unsteady three-dimensional flow begins at a Grashof number of approximately 3.0 million. At higher Grashof numbers (e.g., 6.6 million), the melt flow is fully unsteady, three-dimensional turbulent flow. The simulations further indicated that the melt flow at a Grashof number of 6.6 million is statistically stable, which suggested the Reynolds quasi-steady assumption is valid in this case.
UR - https://www.scopus.com/pages/publications/10044242619
U2 - 10.1109/ICPPW.2004.1328020
DO - 10.1109/ICPPW.2004.1328020
M3 - Conference contribution
AN - SCOPUS:10044242619
SN - 0769521983
T3 - Proceedings of the International Conference on Parallel Processing Workshops
SP - 214
EP - 221
BT - Proc. - ICPP 2004 on Mobile and Wireless Networking, High Perform. Sci. and Eng. Comput., Netw. Des. and Archit., Opt. Netw. Control and Manage., Ad Hoc and Sensor Netw., Compile and Run Time Tech.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2004 International Conference on Parallel Processing Workshops, ICPP 2004
Y2 - 15 August 2004 through 18 August 2004
ER -