| 학회 |
한국화학공학회 |
| 학술대회 |
1997년 봄 (04/25 ~ 04/26, 동국대학교) |
| 권호 |
3권 1호, p.1161 |
| 발표분야 |
이동현상 |
| 제목 |
증발액막의 비선형안정성해석 : 2차원 및 3차원 해석 |
| 초록 |
Thin evaporating liquid film provides excellent removal of heat on the hot solid surfacesdue to its high transfer surface of heat and mass in comparison with the volume of the film.In contrast with this advantage the evaporation destabilizes the film and thus the stability ofthis liquid film is of practical importance in several applications, for example the safetyanalysis of reactor and heat exchanger. Here we consider extremely thin films, which arethick enough to be treated by continuum mechanics but thin enough that gravity effects arenegligible and long-range molecular forces are significant in determining their dynamics. Aliquid layer placed on a horizontal heated plate can experience a variety of hydrodynamicinstabilities due to van der Waals attractions and thermocapillarity induced the surface tensiongradient at the interface and vapor recoil. We’ll extend study linear and nonlinear stabilitiesin three dimensional layers as well as in two dimensional cases and for the nonlinear stabilitythe Fourier-Spectral method has been employed to calculate the film height.
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| 저자 |
이재성, 김효, 김덕찬
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| 소속 |
서울시립대 확학공학과 |
| 키워드 |
stability; evaporating liquid film; Fourier-Spectral method
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| E-Mail |
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| 원문파일 |
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