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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.10
- 수록면
- 145 - 150 (6page)
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초록· 키워드
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We perform parametric study on the motion of a spring-type flagellum in a viscous fluid with various parameters including the effect of wall. We conduct simulations by using a commercial software package, CFX v13, ANSYS Inc., and in order to validate the simulation, we compare our numerical results with data obtained with other methods given by utilizing an open code in Matlab provided in the literature. The simulations are performed for the range of the spring pitch λ, the helical radius R, the rotational angular speed of the spring ω, the fluid viscosity μ and the proximity of the spring to the surrounding wall. We confirm that our numerical results agree well with those given by the slender body theory (SBT). We also present the relationship between thrust and parameters (λ, R, ω, μ and proximity to the wall). We can see that the thrust is directly proportional to rotational velocity of flagellum and viscosity of fluid and that the thrust is increased with the helical radius. Interestingly, the thrust rapidly increases with the spring pitch up to λ=77mm, beyond which it slowly decreases, implying that the thrust is maximized at λ=77mm under a specific parameter set selected in this study.
목차
Abstract
1. Introduction
2. Governing equations and numerical methods
3. Results
4. Conclusions
5. References
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