The origin of thermocapillary convection in subcooled nucleate pool boiling
type: Item
instance of: scholarly article
title: The origin of thermocapillary convection in subcooled nucleate pool boiling
zbMATH Open document ID: 1022.76051
DOI: 10.1016/S0017-9310(00)00124-1
published in: International Journal of Heat and Mass Transfer
publication date: 2003-10-20T00:00:00Z
review text: The authors investigate theoretically the significance of noncondensible gas as the origin of thermocapillary convection in subcooled pool boiling. To do it, an isolated bubble with steady-state mass flow from its bottom to top is considered. Noncondensable gas is carried along with the evaporating vapour at the base of the bubble and accumulates at its top. To ensure a steady-state mass flow through the bubble in the presence of accumulated noncondensable gas, an intensified heat transfer in the liquid is necessary, which is possible by the thermocapillary convection. By a combination of analytical and numerical approaches it is shown that conditions could be revealed, where a steady-state mass flow through the bubble is no longer possible and the bubble begins to grow into the subcooled liquid, which is in accordance with experimental observations. It is demonstrated that even small amounts of noncondensable gas are sufficient to induce thermocapillary flow which, in turn, inhibits bubble detachment. The paper is well-written and the presentation is clear.
reviewed by: Ioan Pop
Mathematics Subject Classification ID: 76R05
Mathematics Subject Classification ID: 76D45
Mathematics Subject Classification ID: 80A20
Mathematics Subject Classification ID: 80A22
zbMATH DE Number: 1587644
zbMATH Keywords: subcooled nucleate pool boiling
zbMATH Keywords: thermocapillary convection
zbMATH Keywords: condensation
zbMATH Keywords: bubble
zbMATH Keywords: mass flow
zbMATH Keywords: heat transfer
zbMATH Keywords: noncondensable gas
MaRDI profile type: Publication
full work available at URL: s0017-9310(00)00124-1
OpenAlex ID: W2050739483
author: R. Marek
author: J. Straub
description: scientific article; zbMATH DE number 1587644