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Development of Perturbations on a Mo...

Sharma, Ram Sudhir.

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Development of Perturbations on a Model Dissolving Surface under Fluid Flow.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development of Perturbations on a Model Dissolving Surface under Fluid Flow./
Author:	Sharma, Ram Sudhir.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	34 p.
Notes:	Source: Masters Abstracts International, Volume: 82-06.
Contained By:	Masters Abstracts International82-06.
Subject:	Condensed matter physics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28257686
ISBN:	9798698577362

Development of Perturbations on a Model Dissolving Surface under Fluid Flow.
Sharma, Ram Sudhir.

Development of Perturbations on a Model Dissolving Surface under Fluid Flow. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 34 p.

Source: Masters Abstracts International, Volume: 82-06.

Thesis (M.S.)--Clark University, 2020.

This item must not be sold to any third party vendors.

Geological features are subject to a variety of processes. The landscape topography of a particular feature is a result of forces that work to elevate and weather that feature. In this thesis, we focus on one such weathering process-dissolution-and specifically discuss how perturbations in a dissolving interface grow based on the orientation of the interface when it is placed in a fluid flow.We model this interface with a caramel, that dissolves in water at a timescale that we can observe develop in a few hours. We show that when the interface is set in a vertical orientation, perturbations spontaneously form caves transverse to the fluid flow. These caves display 'acorn-like' shapes, with flat ceilings and gradually sloping cave floors. If the same setup is placed horizontally, perturbations grow much more uniformly, and such structures are not observed. The rate of dissolution is also observed to be much slower in this horizontal orientation. Altogether, this suggests a central role for gravitational convection in the formation of these caves. This last point is discussed with some details about the interaction between the fluid flow and the interface's local topography.

ISBN: 9798698577362Subjects--Topical Terms:

3173567
Condensed matter physics.
Subjects--Index Terms:

Dissolution

Development of Perturbations on a Model Dissolving Surface under Fluid Flow.
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100 1 $a Sharma, Ram Sudhir. $3 3558264
245 1 0 $a Development of Perturbations on a Model Dissolving Surface under Fluid Flow.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 34 p.
500 $a Source: Masters Abstracts International, Volume: 82-06.
500 $a Advisor: Kudrolli, Arshad.
502 $a Thesis (M.S.)--Clark University, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Geological features are subject to a variety of processes. The landscape topography of a particular feature is a result of forces that work to elevate and weather that feature. In this thesis, we focus on one such weathering process-dissolution-and specifically discuss how perturbations in a dissolving interface grow based on the orientation of the interface when it is placed in a fluid flow.We model this interface with a caramel, that dissolves in water at a timescale that we can observe develop in a few hours. We show that when the interface is set in a vertical orientation, perturbations spontaneously form caves transverse to the fluid flow. These caves display 'acorn-like' shapes, with flat ceilings and gradually sloping cave floors. If the same setup is placed horizontally, perturbations grow much more uniformly, and such structures are not observed. The rate of dissolution is also observed to be much slower in this horizontal orientation. Altogether, this suggests a central role for gravitational convection in the formation of these caves. This last point is discussed with some details about the interaction between the fluid flow and the interface's local topography.
590 $a School code: 0048.
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Fluid mechanics. $3 528155
650 4 $a Geomorphology. $3 542703
653 $a Dissolution
653 $a Pattern-formation
690 $a 0611
690 $a 0204
690 $a 0484
710 2 $a Clark University. $b Physics. $3 3558265
773 0 $t Masters Abstracts International $g 82-06.
790 $a 0048
791 $a M.S.
792 $a 2020
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28257686