Review: possible strategies for the control and stabilization of Marangoni flow in laterally heated floating zones

Research output: Contribution to journalArticle

Abstract

The paper presents a comparative and critical analysis of some theoretical/experimental/numerical arguments concerning the possible stabilization of the surface-tension-driven (Marangoni) flow in the Floating
Zone technique and in various related fluid-dynamic models. It is conceived as a natural extension of the focused overview published in Cryst. Res. Tech. 40(6),
531, (2005) where much room was devoted to discuss the intrinsic physical mechanisms responsible for threedimensional and oscillatory flows in a variety of technological processes. Here, a significant effort is provided to illustrate the genesis of possible control strategies (many of which are still in a very embryonic condition), the underlying ideas, the governing nondimensional
parameters, the scaling properties. Particular attention is devoted to their range of applicability that is still the subject of controversies in the literature. The
discussion is supported by some novel numerical results. These simulations are used to provide additional insights into the physics of problems where experimental data are not available.
LanguageEnglish
Pages171-188
Number of pages18
JournalFluid Dynamics and Materials Processing
Volume1
Issue number2
DOIs
Publication statusPublished - 2005

Fingerprint

Fluid dynamics
Surface tension
Dynamic models
Physics
Stabilization

Keywords

  • floating zone technique
  • Marangoni flow
  • convective instabilities
  • thermal feedback control
  • magnetic fields
  • forced high-frequency vibrations
  • thermovibrational effects

Cite this

@article{67a1bf3b0d1f44c9bbd20363f54ed0c9,
title = "Review: possible strategies for the control and stabilization of Marangoni flow in laterally heated floating zones",
abstract = "The paper presents a comparative and critical analysis of some theoretical/experimental/numerical arguments concerning the possible stabilization of the surface-tension-driven (Marangoni) flow in the FloatingZone technique and in various related fluid-dynamic models. It is conceived as a natural extension of the focused overview published in Cryst. Res. Tech. 40(6),531, (2005) where much room was devoted to discuss the intrinsic physical mechanisms responsible for threedimensional and oscillatory flows in a variety of technological processes. Here, a significant effort is provided to illustrate the genesis of possible control strategies (many of which are still in a very embryonic condition), the underlying ideas, the governing nondimensionalparameters, the scaling properties. Particular attention is devoted to their range of applicability that is still the subject of controversies in the literature. Thediscussion is supported by some novel numerical results. These simulations are used to provide additional insights into the physics of problems where experimental data are not available.",
keywords = "floating zone technique, Marangoni flow, convective instabilities, thermal feedback control, magnetic fields, forced high-frequency vibrations, thermovibrational effects",
author = "Marcello Lappa",
year = "2005",
doi = "10.3970/fdmp.2005.001.171",
language = "English",
volume = "1",
pages = "171--188",
journal = "Fluid Dynamics and Materials Processing",
issn = "1555-256X",
publisher = "Tech Science Press",
number = "2",

}

TY - JOUR

T1 - Review

T2 - Fluid Dynamics and Materials Processing

AU - Lappa, Marcello

PY - 2005

Y1 - 2005

N2 - The paper presents a comparative and critical analysis of some theoretical/experimental/numerical arguments concerning the possible stabilization of the surface-tension-driven (Marangoni) flow in the FloatingZone technique and in various related fluid-dynamic models. It is conceived as a natural extension of the focused overview published in Cryst. Res. Tech. 40(6),531, (2005) where much room was devoted to discuss the intrinsic physical mechanisms responsible for threedimensional and oscillatory flows in a variety of technological processes. Here, a significant effort is provided to illustrate the genesis of possible control strategies (many of which are still in a very embryonic condition), the underlying ideas, the governing nondimensionalparameters, the scaling properties. Particular attention is devoted to their range of applicability that is still the subject of controversies in the literature. Thediscussion is supported by some novel numerical results. These simulations are used to provide additional insights into the physics of problems where experimental data are not available.

AB - The paper presents a comparative and critical analysis of some theoretical/experimental/numerical arguments concerning the possible stabilization of the surface-tension-driven (Marangoni) flow in the FloatingZone technique and in various related fluid-dynamic models. It is conceived as a natural extension of the focused overview published in Cryst. Res. Tech. 40(6),531, (2005) where much room was devoted to discuss the intrinsic physical mechanisms responsible for threedimensional and oscillatory flows in a variety of technological processes. Here, a significant effort is provided to illustrate the genesis of possible control strategies (many of which are still in a very embryonic condition), the underlying ideas, the governing nondimensionalparameters, the scaling properties. Particular attention is devoted to their range of applicability that is still the subject of controversies in the literature. Thediscussion is supported by some novel numerical results. These simulations are used to provide additional insights into the physics of problems where experimental data are not available.

KW - floating zone technique

KW - Marangoni flow

KW - convective instabilities

KW - thermal feedback control

KW - magnetic fields

KW - forced high-frequency vibrations

KW - thermovibrational effects

U2 - 10.3970/fdmp.2005.001.171

DO - 10.3970/fdmp.2005.001.171

M3 - Article

VL - 1

SP - 171

EP - 188

JO - Fluid Dynamics and Materials Processing

JF - Fluid Dynamics and Materials Processing

SN - 1555-256X

IS - 2

ER -