Capillarity and evaporation exacerbated seepage losses from unlined channels

Anvar R. Kacimov*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

7 اقتباسات (Scopus)


Steady, essentially two-dimensional, tension-saturated seepage from a flat-bottomed soil channel in an arid environment is studied analytically. Physically, the action of capillary spreading, evaporative drive to the atmosphere both from the near-channel banks and capillary fringe boundary, Darcian resistance of the matrix and gravity are juxtaposed and result in trifurcation of infiltrated water into deep percolation and semi-infinite evaporation "wings" with two hinge points on the soil surface and two dividing streamlines. Mathematically, free boundary problem is solved by conformal mappings and the Polubarinova-Kochina boundary-value problem method. The dependence of deep percolation losses and evaporative return flow on the channel width, conductivity, static capillary rise height, and intensity of evaporation is found.

اللغة الأصليةEnglish
الصفحات (من إلى)623-626
عدد الصفحات4
دوريةJournal of Irrigation and Drainage Engineering
مستوى الصوت132
رقم الإصدار6
المعرِّفات الرقمية للأشياء
حالة النشرPublished - نوفمبر 2006

ASJC Scopus subject areas

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