東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Motion of thin droplets due to surfa...

Clay, Matthew Allen.

Linked to FindBook

Google Book

Amazon

博客來

Motion of thin droplets due to surfactants and gravity.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Motion of thin droplets due to surfactants and gravity./
Author:	Clay, Matthew Allen.
Description:	178 p.
Notes:	Adviser: Michael J. Miksis.
Contained By:	Dissertation Abstracts International68-03B.
Subject:	Physics, Fluid and Plasma. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3255926

Motion of thin droplets due to surfactants and gravity.
Clay, Matthew Allen.

Motion of thin droplets due to surfactants and gravity. - 178 p.

Adviser: Michael J. Miksis.

Thesis (Ph.D.)--Northwestern University, 2007.

The motion of thin drops under the effects of surfactants and gravity is studied. First, the effects of surfactant and temperature on the spreading of a viscous droplet are considered. Lubrication theory is used to develop a two-dimensional model for the evolution of the droplet. The surfactant is assumed to be insoluble, and it may transport onto and off of the droplet interface at the contact line. A linear temperature gradient and a gradient in the surface energy along the substrate are examined. We find that these effects together can increase the speed of the translation of the droplet. When contact-angle hysteresis is included, surfactant transport along the interface can cause the droplet to stop moving. These results are compared with a three-dimensional axisymmetric lubrication model and are found to be in good agreement. A fully three-dimensional lubrication model is formed that allows the droplet to translate down an inclined plane. Critical Bond numbers and angles of inclination are calculated for when the droplet remains pinned to the plane. A larger hysteresis window is found to require a higher Bond number to force the droplet to begin moving. These results compare favorably with other published studies. We construct a stability diagram that details the Bond numbers for which the droplet will remain pinned to the surface, when it will translate at a steady speed, and when it will begin to deform. The formation of cusps and pearling behavior of droplets is discussed.Subjects--Topical Terms:

1018402
Physics, Fluid and Plasma.

Motion of thin droplets due to surfactants and gravity.
LDR:02318nam 2200253 a 45 001 946021
005 20110523
008 110523s2007 ||||||||||||||||| ||eng d
035 $a (UMI)AAI3255926
035 $a AAI3255926
040 $a UMI $c UMI
100 1 $a Clay, Matthew Allen. $3 1269429
245 1 0 $a Motion of thin droplets due to surfactants and gravity.
300 $a 178 p.
500 $a Adviser: Michael J. Miksis.
500 $a Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1696.
502 $a Thesis (Ph.D.)--Northwestern University, 2007.
520 $a The motion of thin drops under the effects of surfactants and gravity is studied. First, the effects of surfactant and temperature on the spreading of a viscous droplet are considered. Lubrication theory is used to develop a two-dimensional model for the evolution of the droplet. The surfactant is assumed to be insoluble, and it may transport onto and off of the droplet interface at the contact line. A linear temperature gradient and a gradient in the surface energy along the substrate are examined. We find that these effects together can increase the speed of the translation of the droplet. When contact-angle hysteresis is included, surfactant transport along the interface can cause the droplet to stop moving. These results are compared with a three-dimensional axisymmetric lubrication model and are found to be in good agreement. A fully three-dimensional lubrication model is formed that allows the droplet to translate down an inclined plane. Critical Bond numbers and angles of inclination are calculated for when the droplet remains pinned to the plane. A larger hysteresis window is found to require a higher Bond number to force the droplet to begin moving. These results compare favorably with other published studies. We construct a stability diagram that details the Bond numbers for which the droplet will remain pinned to the surface, when it will translate at a steady speed, and when it will begin to deform. The formation of cusps and pearling behavior of droplets is discussed.
590 $a School code: 0163.
650 4 $a Physics, Fluid and Plasma. $3 1018402
690 $a 0759
710 2 $a Northwestern University. $3 1018161
773 0 $t Dissertation Abstracts International $g 68-03B.
790 $a 0163
790 1 0 $a Miksis, Michael J., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3255926