@article{ART001227789},
author={Jeong-Gil Choi and Geug Tae Kim and Kyong-Hwan Lee},
title={Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2007},
volume={17},
number={6},
pages={256-263}
TY - JOUR
AU - Jeong-Gil Choi
AU - Geug Tae Kim
AU - Kyong-Hwan Lee
TI - Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2007
VL - 17
IS - 6
PB - The Korea Association Of Crystal Growth, Inc.
SP - 256
EP - 263
SN - 1225-1429
AB - For PB = 50 Torr, PT = 5401Torr, TS = 450
o
C, ΔT = 20 K, Ar = 5, Pr = 3.34, Le = 0.01, Pe = 4.16, Cv = 1.05, adiabatic
and linear thermal profiles at walls, the intensity of solutal convection (solutal Grashof number Grs = 7.86 × 10
6
) is greater
than that of thermal convection (thermal Grashof number Grt = 4.83 × 10
5
) by one order of magnitude, which is based on
the solutally buoyancy-driven convection due to the disparity in the molecular weights of the component A (Hg2Cl2) and B
(He). With increasing the partial pressure of component B from 20 up to 800 Torr, the rate is decreased exponentially. It is
also interesting that as the partial pressure of component B is increased by a factor of 2, the rate is approximately reduced
by a half. For systems under consideration, the rate increases linearly and directly with the dimensionless Peclet number
which reflects the intensity of condensation and sublimation at the crystal and source region. The convective transport
decreases with lower g level and is changed to the diffusive mode at 0.1 g0. In other words, for regions in which the g
level is 0.1 g0 or less, the diffusion-driven convection results in a parabolic velocity profile and a recirculating cell is not
likely to occur. Therefore a gravitational acceleration level of less than 0.1 g0 can be adequate to ensure purely diffusive
transport.p
KW - Mercurous chloride;Thermo-solutal convection;Physical vapor transport;Microgravity environments;Groundbased
model study;Spaceflight experiments
DO -
UR -
ER -
Jeong-Gil Choi, Geug Tae Kim and Kyong-Hwan Lee. (2007). Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride. Journal of the Korean Crystal Growth and Crystal Technology, 17(6), 256-263.
Jeong-Gil Choi, Geug Tae Kim and Kyong-Hwan Lee. 2007, "Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride", Journal of the Korean Crystal Growth and Crystal Technology, vol.17, no.6 pp.256-263.
Jeong-Gil Choi, Geug Tae Kim, Kyong-Hwan Lee "Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride" Journal of the Korean Crystal Growth and Crystal Technology 17.6 pp.256-263 (2007) : 256.
Jeong-Gil Choi, Geug Tae Kim, Kyong-Hwan Lee. Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride. 2007; 17(6), 256-263.
Jeong-Gil Choi, Geug Tae Kim and Kyong-Hwan Lee. "Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride" Journal of the Korean Crystal Growth and Crystal Technology 17, no.6 (2007) : 256-263.
Jeong-Gil Choi; Geug Tae Kim; Kyong-Hwan Lee. Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride. Journal of the Korean Crystal Growth and Crystal Technology, 17(6), 256-263.
Jeong-Gil Choi; Geug Tae Kim; Kyong-Hwan Lee. Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride. Journal of the Korean Crystal Growth and Crystal Technology. 2007; 17(6) 256-263.
Jeong-Gil Choi, Geug Tae Kim, Kyong-Hwan Lee. Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride. 2007; 17(6), 256-263.
Jeong-Gil Choi, Geug Tae Kim and Kyong-Hwan Lee. "Ground-based model study for spaceflight experiments under microgravity environmentson thermo-solutal convection during physical vapor transport of mercurous chloride" Journal of the Korean Crystal Growth and Crystal Technology 17, no.6 (2007) : 256-263.
