CFD modeling for three-dimensional flow in open channels with complex geometry, speed distribution analysis
CFD modeling for three-dimensional flow in open channels with complex geometry, speed distribution analysis
Amirmojtaba Peikari1 mitra moeinadin2
1) Master of Civil Engineering - Hydraulic Structures,iran ISLAMIC AZAD UNIVERSITY Kerman Branch Email:
2) Master of Civil Engineering - Hydraulic Structures,iran ISLAMIC AZAD UNIVERSITY Kerman Branch Email:
Publication :
International Congress On Engineering, Technology and Innovation(eticong.com/1st)
Abstract :
The simulation of open channel flow or river flow presents a unique challenge for numerical simulations that are widely used in computational fluid dynamics applications. The prediction is very difficult because the flow in the open channel is usually intermittent and disturbed, the geometry is irregular and curved, and the height of the free surface varies with time. The results of a three-dimensional turbulent k-ε model are presented to study the flow structure and velocity distribution in a spiral open channel and a straight open channel. A three-dimensional numerical model is set up to calculate the flow in a coordinate range for calculating a complex boundary channel. The finite volume method is used to disperse the governing equations and the SIMPLE algorithm is used to obtain the connection of speed and pressure. The k-ε disturbance model has a good useful value because it does not increase computational time. The main contribution of this study is the creation of a numerical method that can be used to predict flow in bends of a different curvature.
Keywords :
Computational Fluid Dynamics
Speed Distribution
Limited Volume
Turbulence
Spiral Open Channel