Numerical simulation of thermo-solutal Marangoni convection in a full floating zone with radiative heat transfer under zero gravity

被引：7

作者：

Jin, Chihao ^{[1
]}

Okano, Yasunori ^{[1
]}

Minakuchi, Hisashi ^{[2
]}

Dost, Sadik ^{[3
]}

机构：

[1] Osaka Univ, Dept Mat Engn Sci, 1-3 Machikaneyarna, Toyonaka, Osaka, Japan

[2] Univ Ryukyus, Dept Mech Engn, 1 Senbaru, Nishihara, Okinawa, Japan

[3] Univ Victoria, Crystal Growth Lab, Victoria, BC, Canada

来源：

JOURNAL OF CRYSTAL GROWTH | 2021年 / 570卷

关键词：

A1; Computer simulation; Convection; Fluid flows; A2; Floating zone technique; B2; Semiconducting silicon compounds; LIQUID BRIDGES; NUMBER;

D O I：

10.1016/j.jcrysgro.2021.126204

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A numerical simulation study of thermo-solutal Marangoni convection has been carried out in a full floating zone with radiative heat transfer under zero gravity. In this system, the thermal and solutal Marangoni flows develop in the same direction and/or opposite directions along the free surface depending on the location in the zone. In the model, the ambient temperature distribution along the zone is taken as a Gaussian profile, and the radiative heat transfer is considered dominant. The characteristics of the concentration pattern in the zone vary due to the varying thermal and solutal Marangoni numbers, as well as the characteristic azimuthal wave. The flow velocity field exhibits two or four main vortices along the free surface. These vortices get stronger at higher thermal Marangoni number values.

引用

页数：6

共 44 条

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