| abstract |
It is an object of the present invention to provide a fluid device capable of holding a large amount of solution in a reservoir independent of posture. The reservoir extends linearly along the first direction and is adjacent to a plurality of first channels arranged at intervals in the second direction intersecting the first direction. A meandering flow that has a second flow path in which the connection between one end side and the connection between the other end sides are alternately switched along the second direction for each first flow path, and meanders along the second direction. Including the road. The lengths of the first and second channels are L, the surface tension is γ, the density of the solution is ρ, the acceleration applied to the solution including gravity is G, and the wet edge lengths of the first and second channels. Is Wp, the cross-sectional areas of the first and second flow paths are A, the receding contact angle is α, and the forward contact angle is β, then L ≦ (γ × Wp × (cosα-cosβ)) / (ρ × A). Satisfy the relationship of × G). |