dalam jangka waktu berapa lama u/ mencapai ratusan kg / cm ? dan jika disimulasikan dengan pipa kapiler pompa.. butuh berapa pipa kapiler pompa ? apakah 1 / banyak ?
Bro Forte dan Sunkmanitu Tanka Ob'waci,
Pipa capiler dan serat2 (kain, spoon) memang menjanjikan membuat air mengalir/naik lebih tinggi dari
tinggi awal. selanjutnya adalah gimana caranya mengeluarkan air tsb.
Utk pohon kelihatannya ada bantuan sinar mata hari dan proses cholorofil di daun...
contoh paling jelas ada pohon kelapa... airnya bisa mencapai buah kelapa... sekali lagi ini juga bantuan matahari.
setau gw kemampuan kapiler menaikan air ... cuma berapa cm gitu ?
thx atas masukannya.
2.1.4. CapillarityWater particles at the water table are subject to an upward attraction due to surface tension of the air-water interface and the molecular attraction of the liquid and solid phases. This phenomenon is known as capillarity.
In a tube of small diameter, the free-water surface will assume a shape with the minimum surface area. The attraction of the solid for the liquid will draw the liquid up into the tube. The upward force will be balanced by the weight of the column of the water (Figure 2.2).
Figure 2.2. Rise of water in capillary tubes
The rise of water in a capillary tube may be calculated by the following relations:
where:
hc height of the capillary rise (L)
σ surface tension coefficient of the fluid (MT-2)
θ angle of the meniscus (degree)
ρ density of the fluid (ML-3)
g acceleration of gravity (LT-2)
d diameter of the capillary tube (L)
There were developed special formulas that can be applied to calculate the height of capillary rise in soil, as for example Mavis and Tsui's formula (1939), that takes in consideration only the size of grain and the porosity (Delleur, 1998):
where:
hc height of the capillary rise (mm)
dH harmonic mean value of grain size diameter (mm)
n porosity