چکیده مقاله
In the present study, a three dimensional numerical simulations have been performed to explore hydraulics of compound open channel with narrowing floodplain Specifically, the simulations are employed to determine the free surface profiles, depth averaged velocity distribution, discharge ratio and momentum balance in compound channels with symmetrically narrowing floodplains As verification, the results of simulations are compared with the experimental data in a 10 m long and 1 20 m wide flume using depth averaged velocity, free surface profiles and main channel and floodplain discharge ratio Also, the three dimensional numerical models are used to evaluate the momentum flux terms in whole length of the channel The results show that the momentum transfer associated with the mass transfer is significant in the simulations which shows the dominant effect of convection and pressure terms
کلیدواژهها
نویسندگان
Z Aidi
River Engineering Department, Regional Water Company of Alborz, , Karaj, Iran
S.H Mohajeri
Assistan Professor, Civil Engineering Department, Kharazmin University, Tehran, Iran
A Samadi
۳Assistan Professor, Water Engineering Department, Imam Khomeini International University, Qazvin, Iran
M Ghiasi
River Engineering Department, Regional Water Company of Alborz, , Karaj, Iran
شیوه ارجاع
Aidi, Z and Mohajeri, S.H and Samadi, A and Ghiasi, M,1400,Three-Dimensional Numerical Simulations of Compound Open-Channel with Narrowing Floodplains,12th International River Engineering Conference
ارائهشده در
مجموعه مقالات دوازدهمین سمینار بین المللی مهندسی رودخانه4 بهمن 1400 · اهواز