Standing-oscillatory natural convection computed for molten silicon in Czochralski configuration

Hiroshi Tomonari, Mitsuo Iwamoto, Koichi Kakimoto, Hiroyuki Ozoe, Kenjiro Suzuki, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Numerical computations were carried out for transient natural convection in molten silicon (Pr=0.016) in a relatively shallow crucible heated on the wetted surface and cooled by a crystal rod and at the free surface. At Ra=105, six separate roll cells appeared with triangular isotherms. In each cell, a coaxial double spiral streak line was found to exist. At Ra=106, the convection became oscillatory with eight peak temperatures in a circumferential direction. The oscillation was found to consist of simultaneous movement of the roll cells in both the vertical and circumferential directions.

Original languageEnglish
Pages (from-to)191-200
Number of pages10
JournalChemical Engineering Journal
Issue number3
Publication statusPublished - Dec 18 1998

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Environmental Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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