Melting Driven Convection at the Ice-seawater Interface

Bishakhdatta Gayen; Ross W. Griffiths; Ross C. Kerr

doi:10.1016/j.piutam.2015.04.012

Melting Driven Convection at the Ice-seawater Interface

Bishakhdatta Gayen^*, Ross W. Griffiths, Ross C. Kerr

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We performed direct numerical simulations to investigate the interaction of a vertical ice interface with seawater, and particularly the small-scale convection generated when a wall of Antarctic ice melts in the salty and warmer seawater. The three coupled interface equations are used, along with the Boussinesq and non-hydrostatic governing equations of motion and equation of state for seawater, to solve for interface temperature, salinity and melt rate. Fluxes of both heat and salt to the interface play significant roles in rate of ice melting. The main focus is on the dissolving of ice (at ambient water temperatures between -1° C and 6° C and salinity around 35 ‰) as characterizes many sites around Antarctica. Under these conditions the diffusion of salt to the ice-waterinterface depresses the freezing point and further enhances heat diffusion to the ice.

Original language	English
Pages (from-to)	78-85
Number of pages	8
Journal	Procedia IUTAM
Volume	15
DOIs	https://doi.org/10.1016/j.piutam.2015.04.012
Publication status	Published - 2015
Event	IUTAM Symposium on Multiphase Flows with Phase Change: Challenges and Opportunities, IUTAM 2014 - Duration: 8 Dec 2014 → 11 Dec 2014

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10.1016/j.piutam.2015.04.012

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@article{36cea5758c2240b294d0dc681fae4ef8,

title = "Melting Driven Convection at the Ice-seawater Interface",

abstract = "We performed direct numerical simulations to investigate the interaction of a vertical ice interface with seawater, and particularly the small-scale convection generated when a wall of Antarctic ice melts in the salty and warmer seawater. The three coupled interface equations are used, along with the Boussinesq and non-hydrostatic governing equations of motion and equation of state for seawater, to solve for interface temperature, salinity and melt rate. Fluxes of both heat and salt to the interface play significant roles in rate of ice melting. The main focus is on the dissolving of ice (at ambient water temperatures between -1° C and 6° C and salinity around 35 ‰) as characterizes many sites around Antarctica. Under these conditions the diffusion of salt to the ice-waterinterface depresses the freezing point and further enhances heat diffusion to the ice.",

keywords = "convection, double-diffusive layers, melting",

author = "Bishakhdatta Gayen and Griffiths, {Ross W.} and Kerr, {Ross C.}",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier B.V.; IUTAM Symposium on Multiphase Flows with Phase Change: Challenges and Opportunities, IUTAM 2014 ; Conference date: 08-12-2014 Through 11-12-2014",

year = "2015",

doi = "10.1016/j.piutam.2015.04.012",

language = "English",

volume = "15",

pages = "78--85",

journal = "Procedia IUTAM",

issn = "2210-9838",

}

TY - JOUR

T1 - Melting Driven Convection at the Ice-seawater Interface

AU - Gayen, Bishakhdatta

AU - Griffiths, Ross W.

AU - Kerr, Ross C.

PY - 2015

Y1 - 2015

N2 - We performed direct numerical simulations to investigate the interaction of a vertical ice interface with seawater, and particularly the small-scale convection generated when a wall of Antarctic ice melts in the salty and warmer seawater. The three coupled interface equations are used, along with the Boussinesq and non-hydrostatic governing equations of motion and equation of state for seawater, to solve for interface temperature, salinity and melt rate. Fluxes of both heat and salt to the interface play significant roles in rate of ice melting. The main focus is on the dissolving of ice (at ambient water temperatures between -1° C and 6° C and salinity around 35 ‰) as characterizes many sites around Antarctica. Under these conditions the diffusion of salt to the ice-waterinterface depresses the freezing point and further enhances heat diffusion to the ice.

AB - We performed direct numerical simulations to investigate the interaction of a vertical ice interface with seawater, and particularly the small-scale convection generated when a wall of Antarctic ice melts in the salty and warmer seawater. The three coupled interface equations are used, along with the Boussinesq and non-hydrostatic governing equations of motion and equation of state for seawater, to solve for interface temperature, salinity and melt rate. Fluxes of both heat and salt to the interface play significant roles in rate of ice melting. The main focus is on the dissolving of ice (at ambient water temperatures between -1° C and 6° C and salinity around 35 ‰) as characterizes many sites around Antarctica. Under these conditions the diffusion of salt to the ice-waterinterface depresses the freezing point and further enhances heat diffusion to the ice.

KW - convection

KW - double-diffusive layers

KW - melting

UR - http://www.scopus.com/inward/record.url?scp=85007452596&partnerID=8YFLogxK

U2 - 10.1016/j.piutam.2015.04.012

DO - 10.1016/j.piutam.2015.04.012

M3 - Conference article

AN - SCOPUS:85007452596

SN - 2210-9838

VL - 15

SP - 78

EP - 85

JO - Procedia IUTAM

JF - Procedia IUTAM

T2 - IUTAM Symposium on Multiphase Flows with Phase Change: Challenges and Opportunities, IUTAM 2014

Y2 - 8 December 2014 through 11 December 2014

ER -

Melting Driven Convection at the Ice-seawater Interface

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