Akademik Veri Yönetim Sistemi
World Multidisciplinary Earth Scineces Symposium, Praha, Çek Cumhuriyeti, 3 - 07 Eylül 2018, ss.1
The problems in concern with flood modeling which
Engineers face, originate from predicted from level of water and flood forward
speed basicly as a function of base of river and basin topography. But
increasing flows which due to probable rain shower originated from global
climate change and urbanization cause to increase calculation difficulties. On
the other hand hidrolic models explain the water level to get reached in given
in a flow, morphologic results of floods and flood spreading. However the basic
difficulty is complication of current flooded from main river bed to
floodplain. In spite of calculation of water level is a simple problem response
given flow in channel with single section, the problem gradually gets
complicated with water flooding from main channel to flood plain. Flood plains
don’t only work as retard pool, also due to they carry flow the complication of
current originated from this. There are several flow calculation methods in a
main channel, a compound sectioned channel consisting of one or more flood
beds. In this study, the discharge computation is carried out using Single
Channel Method (SCM) and Divided Channel Method (DCM) known as classical
methods. These methods have been applied to a compound channel given in
literature. The computed discharge values were compared with the experimental
discharge values, and the validity of these classical methods is investigated. The He method in the DCM
method in compound channel gave better result than V (vertical) and D
(diagonal) methods. However, since the SCM method gives fewer errors than the
DCM method, it has been concluded that the SCM method is better suited to use
in calculation of flow of the composite sectioned channels.