Calculation of water rise in curvilinear capillaries by tangent angle to the meniscus

The work objectives are the simulation of the water distribution in the symmetric multilevel capillary systems with curvilinear capillaries, and the calculation of water rise in the curvilinear capillaries by the angle of inclination to the horizontal tangent to the water meniscus in the capillary. For a complete description of the water advance in the curvilinear branches of different levels, the coordinates of the water menisci in those levels about the axes y and x related respectively to the vertical capillary axis and the water surface are determined. Ceteris paribus, the value of water movement in the curvilinear capillaries is always greater than in the straight ones. The results obtained are useful in studying the conductivity of xylem vessels and the promotion of soil moisture in the plant structures which is directly related to the rising and distribution of water in the xylem. It is shown that with increase of the number of levels, the tangent angle to the water menisci in the curvilinear branches is reduced in comparison with the first curvilinear branch. The reduction of this angle indicates that the water in the curvilinear branches is moving the less, the higher the level number is.