چکیده مقاله
The numerical simulation of a group of sediment grains is important for the bedload estimation The present treatise deals with the development of a 3D Eulerian Lagrangian model by considering the nonlinear drag force, the shear lift force, Magnus force, the buoyancy force, the added mass force, the Basset history force and torque A sub model for particle particle interaction of bed sediment laden flows is also included By using the developed model, the effect of particle– particle collision on the trajectories of saltating grains in open channel flows can be investigated The analyses of the simulation results indicated that inter particle collisions introduce several effects on the sediment transport including changing length and height of the sediment saltation and its lateral diffusion Therefore, the use of such model can increase the accuracy of the bed load transport estimation
کلیدواژهها
نویسندگان
Reza Barati
Ph D candidate, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
سیدعلی اکبر صالحی نیشابوری
Prof , Water Engineering Research Center, Department of civil Engineering, Tarbiat Modares University, Tehran, Iran
Goodarz Ahmadi
Prof , Department of Mechanical and Aeronautical Engineering, Clarkson University,Potsdam, New York, USA
شیوه ارجاع
Barati, Reza and Salehi Neyshabouri, Seyed Ali Akbar and Ahmadi, Goodarz,1394,A 3D Eulerian-Lagrangian Model for the Motion of the Multiple Non-cohesive Sediment Grains in Water,10th International Congress on Civil Engineering,Tabriz
ارائهشده در
مجموعه مقالات دهمین کنگره بین المللی مهندسی عمران15 اردیبهشت 1394 · تبریز