Title page for etd-0702116-095248


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URN etd-0702116-095248
Author Chieh-An Hsieh
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2015
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title The Effect of Fluid Flow on Surface Roughness during Solidification
Date of Defense 2016-07-19
Page Count 48
Keyword
  • corner flow
  • Thermocapillary
  • Level-set equation
  • Two-phase flow
  • Phase-field method
  • Abstract This thesis implicates the use of Phase-field method, to create a simulation of the transient thermal of the surface of a metallic material, molten or solidified by the heat flux during process. The project itself is considered acquainted with mass conservation equation, momentum equation, energy equation and level-set equation. In order to reach the results within the flow field domain, temperature, pressure, streamline and level-set number. This research is about the changes of corner flow between fusion area and solid area, uses different boundary conditions to forecast the disparity of corner field change. Such as solidified, surface fill, whirlpool phenomenons or the formation of ripples. In add, the results will display the area where flows of the molten are forced by thermocapillary. Which is caused by surface tension and temperature gradient.
    Advisory Committee
  • Han-Taw Chen - chair
  • Long-Jeng Chen - co-chair
  • Peng-Sheng Wei - advisor
  • Files
  • etd-0702116-095248.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2016-08-02

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