화학공학소재연구정보센터
Korean Chemical Engineering Research, Vol.52, No.1, 75-80, February, 2014
Effects of Solutally Dominant Convection on Physical Vapor Transport for a Mixture of Hg2Br2 and Br2 under Microgravity Environments
E-mail:
The convective flow structures in the vapor phase on earth are shown to be single unicellular, indicating the solutally dominant convection is important. These findings reflect that the total molar fluxes show asymmetrical patterns in a viewpoint of interfacial distributions. With decreasing the gravitational level form 1 g0 down to 1.0 × 10^(-4) g0, the total molar fluxes decay first order exponentially. It is also found that the total molar fluxes decay first order exponentially with increasing the partial pressure of component B, PB (Torr) form 5 Torr up to 400 Torr. Under microgravity environments less than 1 g0, a diffusive-convection mode is dominant and, results in much uniformity in front of the crystal regions in comparisons with a normal gravity acceleration of 1 g0.
  1. Choubey A, Veeramani P, Pym ATG, Mullins JT, Sellin PJ, Brinkman AW, Radley I, Basu A, Tanner BK, J. Cryst. Growth, 352(1), 120 (2012)
  2. Shi YG, Yang JF, Liu HL, Dai PY, Liu BB, Jin ZH, Qiao GJ, Li HL, J. Cryst. Growth, 349(1), 68 (2012)
  3. Zotov N, Baumann S, Meulenberg WA, Vaßen R, J. Membr. Sci., 442, 119 (2013)
  4. Fanton MA, Li Q, Polyakov AY, Skowronski M, Cavalero R, Ray R, J. Cryst. Growth, 287(2), 339 (2006)
  5. Su CH, George MA, Palosz W, Feth S, Lehoczky SL, J. Cryst. Growth, 213(3-4), 267 (2000)
  6. Paorici C, Razzetti C, Zha M, Zanotti L, Carotenuto L, Ceglia M, Mater. Chem. Phys., 66(2-3), 132 (2000)
  7. Lee YK, Kim GT, J. Korean Crystal Growth and Crystal Tech., 23, 20 (2013)
  8. Greenwell DW, Markham BL, Rosenberger F, J. Cryst. Growth, 51, 413 (1981)
  9. Markham BL, Greenwell DW, Rosenberger F, J. Cryst. Growth, 51, 426 (1981)
  10. Jhaveri BS, Rosenberger F, J. Cryst. Growth, 57, 57 (1982)
  11. Markham BL, Rosenberger F, J. Cryst. Growth, 67, 241 (1984)
  12. Nadarajah A, Rosenberger F, Alexander J, J. Cryst. Growth, 118, 49 (1992)
  13. Zhou H, Zebib A, Trivedi S, Duval WMB, J. Cryst. Growth, 167, 534 (1996)
  14. Duval WMB, J. Mater. Proc. Manufacturing Sci., 1, 83 (1992)
  15. Duval WMB, J. Mater. Proc. Sci., 1, 295 (1993)
  16. Duval WMB, Glicksman NE, Singh B, J. Cryst. Growth, 174, 120 (1997)
  17. Tebbe PA, Loyalka SK, Duval WMB, Finite Elements in Analysis and Design, 40, 1499 (2004)
  18. Kim GT, Duval WMB, Singh NB, Glickman ME, Model. Simul. Mater. Sci. Eng., 3, 331 (1995)
  19. Kim GT, Duval WMB, Glickman ME, Model. Simul. Mater. Sci. Eng., 5, 289 (1997)
  20. Kim GT, Duval WMB, Glicksman ME, Chem. Eng. Commun., 162, 45 (1997)
  21. Rosenberger F, Muller G, J. Cryst. Growth, 65, 91 (1983)