NUMERICAL ESTIMATING OF EARTH CHANNEL SEEPAGE IN NZLOO AREA OF UROMYE PROVINCE AND CORRECTION OF EMPIRICAL RELATION CONSTANT COEFFICIENT

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GHOBADIAN R.; KHALAJ M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Water and Soil Year:2012 | Volume:26 | Issue:1 Page(s): 193-202

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Title

NUMERICAL ESTIMATING OF EARTH CHANNEL SEEPAGE IN NZLOO AREA OF UROMYE PROVINCE AND CORRECTION OF EMPIRICAL RELATION CONSTANT COEFFICIENT

Author(s)

GHOBADIAN R. | KHALAJ M. | Issue Writer Certificate

Keywords

SEEPAGEQ1

NAZLOO AREAQ2

EMPIRICAL METHODQ2

FINITE VOLUME METHODQ2

Abstract

Investigation of earth channel SEEPAGE is always taken into account by researchers due to water losses, reduction of soil quality around the channel and for canal lining issues. In this Present research a computer model has written in with SEEPAGE amount in an earth channel with natural cross section is calculated by solving general equation of water movement into isotropic or anisotropic soil under saturation condition by numerical FINITE VOLUME METHOD. Location of pheriatic SEEPAGE line using deformed mesh with tray and error is determined. Also amount of SEEPAGE is determined by means of Darsy relation and using of calculate head in boundary junctions. Evaluation of model accuracy viewpoint programming, SEEPAGE discharge and location of pharisaic SEEPAGE line calculated for a circular channel compared with results of analytical conformal mapping method. The results showed location of pheriatic SEEPAGE line and wide of SEEPAGE area overlaps in tow methods. Also difference between calculate SEEPAGE discharge by tow mentioned method decreases with increasing distant of ground water surface table from channel bed. Additionally to model verification two earth channel named Lolham and Shikhsarmast in NAZLOO AREA of Uromiye province were selected and SEEPAGE discharge was determined by site measurement. Also the result of falling head hydraulic conductivity test showed hydraulic conductivity of bed material of Lolham and Shikhsarmast channels are 3.5 and 1.77 meter per day, respectively. Then cross section coordinate points and hydraulic conductivity as the only input data entered to model and amount of SEEPAGE has calculated that has less than 5% difference with measurement values. After model verification, constant coefficient of empirical relation for SEEPAGE calculation has modified using result of model running.

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APA: Copy

GHOBADIAN, R., & KHALAJ, M.. (2012). NUMERICAL ESTIMATING OF EARTH CHANNEL SEEPAGE IN NZLOO AREA OF UROMYE PROVINCE AND CORRECTION OF EMPIRICAL RELATION CONSTANT COEFFICIENT. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 26(1), 193-202. SID. https://sid.ir/paper/141779/en

Vancouver: Copy

GHOBADIAN R., KHALAJ M.. NUMERICAL ESTIMATING OF EARTH CHANNEL SEEPAGE IN NZLOO AREA OF UROMYE PROVINCE AND CORRECTION OF EMPIRICAL RELATION CONSTANT COEFFICIENT. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2012;26(1):193-202. Available from: https://sid.ir/paper/141779/en

IEEE: Copy

R. GHOBADIAN, and M. KHALAJ, “NUMERICAL ESTIMATING OF EARTH CHANNEL SEEPAGE IN NZLOO AREA OF UROMYE PROVINCE AND CORRECTION OF EMPIRICAL RELATION CONSTANT COEFFICIENT,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 26, no. 1, pp. 193–202, 2012, [Online]. Available: https://sid.ir/paper/141779/en

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