عنوان مقاله :
Modeling Longitudinal and Transverse Velocity Profiles Upstream of an Orifice Using the FLOW-3D Model
پديد آورندگان :
Naderi ، Soraya Shahid Chamran University of Ahvaz - Faculty of Water and Environmental Engineering - Department of Water Structures , Daryaee ، Mehdi Shahid Chamran University of Ahvaz - Faculty of Water and Environmental Engineering - Department of Water Structures , Kashefipour ، Seyed Mahmoud Shahid Chamran University of Ahvaz - Faculty of Water and Environmental Engineering - Department of Water Structures , Zayeri ، MohamadReza Shahid Chamran University of Ahvaz - Faculty of Water and Environmental Engineering - Department of Water Structures
كليدواژه :
Flushing , orifice , Turbulence model , Shear Stress
چكيده فارسي :
The current study investigated the longitudinal flow velocity profile upstream of an orifice for different water depths using the FLOW3D model. Experimental design was used along with LES, Laminar, and turbulence models to calibrate the model. The obtained results indicated that turbulence models had almost high and equal accuracy for predicting longitudinal velocity profiles. For various depths upstream of the orifice, the general form of the longitudinal velocity profile followed an exponential function with high accuracy. Moreover, at largerdistance upstream of the orifice, the transverse velocity profile became uniform. Eventually, it was found that with the rise in the depth upstream of the orifice by eight times, the shear stress created on the bed increased by 148%.
عنوان نشريه :
علوم و مهندسي آبياري
عنوان نشريه :
علوم و مهندسي آبياري
