发明公开
- 专利标题: IN SITU CONTROL OF FLUID MENISCI
- 专利标题(中): IN-SITU-STEUERUNG VONFLÜSSIGKEITSMENISKEN
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申请号: EP15705050.1申请日: 2015-02-10
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公开(公告)号: EP3105172A1公开(公告)日: 2016-12-21
- 发明人: AARTS, Dirk , PARRY, Andrew , RASCÓN DIAZ, Carlos
- 申请人: Oxford University Innovation Limited , Universidad Carlos III de Madrid
- 申请人地址: Buxton Court 3 West Way Botley Oxford OX2 0JB GB
- 专利权人: Oxford University Innovation Limited,Universidad Carlos III de Madrid
- 当前专利权人: Oxford University Innovation Limited,Universidad Carlos III de Madrid
- 当前专利权人地址: Buxton Court 3 West Way Botley Oxford OX2 0JB GB
- 代理机构: Bell, Mark Andrew
- 优先权: GB201402654 20140214
- 国际公布: WO2015121629 20150820
- 主分类号: B81C1/00
- IPC分类号: B81C1/00 ; F15D1/02
摘要:
A system includes a non-vertical channel containing a fluid forming a fluid meniscus having a capillary length and a contact angle θ. The channel in cross-section has a perimeter length |Σ |and an area |Ω|. The cross-section of the non-vertical channel is selected so as to define a constant Lagrange multiplier λ, where λ= |Σ |cos θ / |Ω|. A functional Φ [Γ*] Ξ |Γ*| – cos θ |Σ* | + (1/a
2 )
G* +λ |Ω*| is minimised to define a minimum value Φ
0 =MinΦ. At a critical transition where Φ=0, the fluid defines a smooth arc of length [Γ*] that divides the cross-section of the channel into two parts. |Ω*| is the cross-sectional area of the fluid, which has a curve of length |Σ* | in contact with the channel, and G* represents a vertical position of the centre of mass of the fluid multiplied by the cross-sectional area |Ω*|. How far the fluid meniscus extends along the channel is controlled by one or more parameters of the functional Φ [Γ*].
2 )
G* +λ |Ω*| is minimised to define a minimum value Φ
0 =MinΦ. At a critical transition where Φ=0, the fluid defines a smooth arc of length [Γ*] that divides the cross-section of the channel into two parts. |Ω*| is the cross-sectional area of the fluid, which has a curve of length |Σ* | in contact with the channel, and G* represents a vertical position of the centre of mass of the fluid multiplied by the cross-sectional area |Ω*|. How far the fluid meniscus extends along the channel is controlled by one or more parameters of the functional Φ [Γ*].
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