نوع مقاله : مقاله پژوهشی
نویسندگان
گروه آموزشی مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه ارومیه، ارومیه، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Flow resistance and velocity distribution in collecting, transport and distribution channel of water, has always been discussed as topics between hydraulic researchers. Due to the lack of data and laboratory studies, research laboratory in this field can help greatly to the understanding of important topics in stream channels. For this purpose, triangular shapes of the canivo channels with the glass-walled were embedded in laboratory flume. Two types of triangular-shaped channel with 30 ° and 45 ° degree slope side walls were made and on each of them for 4 discharges and 5 different slope experiments were carried out. As well as in the laboratory models, numerical model (Flow3D software) results were also analyzed. The obtained results have been used in tests, for stage-discharge curve, maning roughness coefficient n - discharge and flow velocity profiles. Investigation shows that 30° degree cross section have more resistance against flowing water passing through the channel to 45° degree cross section. Investigation of velocity contours show that the maximum velocity occurred in 30° degree triangular cross-section.
کلیدواژهها [English]
)