Crystallization on a vertical wall with thermal convection

✍ Scribed by F.C.H. Jongenelen; P.M. Heertjes

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 731 KB
• Volume: 33
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(78)85067-2

✦ Synopsis

The dynamlcal behavlour of heat transfer durmg crystalhzatlon on a vertical cooled wall with thermal convectlon m the melt has been Investigated A lammar boundary layer solution has been adopted m order to describe the heat transfer tn the hquld phase ExperImental work reveals the existence of chsturbances m the hqmd phase close to the moving crystal front durmg growth and meltmg The dynamIcal behaviour of heat transfer has been expressed as a ratio of the Nusselt number (Nu) at the moving boundary and the Nusselt number (Nu,) at the stagnant boundary vs the parameter fw which represents the growth or meltmg rate Growth turns out to Increase the heat transfer, whale meltmg shows the opposite feature The experimental work has been performed with four orgamc liquids (benzene, p-xylene cyclohexane and cyclohexanol), comprlsmg a Prandtl number range of 10-950