The Effect of Geometry Parameters and Flow Characteristics on Erosion and Sedimentation in Channel’s Junction using Finite Volume Method

  • Mohammadamin Torabi
  • Amirmasoud Hamedi
  • Ebrahim Alamatian
  • Hamidreza Zahabi
Keywords: Channel Junction, Flow Hydraulic, Sediment Transfer, Finite Volume Method, Shallow Water Equations


One of the most critical problems in the river engineering field is scouring, sedimentation and morphology of a river bed. In this paper, a finite volume method FORTRAN code is provided and used. The code is able to model the sedimentation. The flow and sediment were modeled at the interception of the two channels. It is applied an experimental model to evaluate the results. Regarding the numerical model, the effects of geometry parameters such as proportion of secondary channel to main channel width and intersection angle and also hydraulic conditionals like secondary to main channel discharge ratio and inlet flow Froude number were studied on bed topographical and flow pattern. The numerical results show that the maximum height of bed increased to 32 percent as the discharge ratio reaches to 51 percent, on average. It is observed that the maximum height of sedimentation decreases by declining in main channel to secondary channel Froude number ratio. On the assessment of the channel width, velocity and final bed height variations have changed by given trend, in all the ratios. Also, increasing in the intersection angle accompanied by decreasing in flow velocity variations along the channel. The pattern of velocity and topographical bed variations are also constant in any studied angles.


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Best J.L. (1987). Flow dynamics at river channel confluences: Implications for sediment transport and bed morphology. Recent Developments in Fluvial Sedimantology, 39, 27-35.

Ghezel soflou & Jafarzadeh. (2009). Modelling of shallow water in the presence of stationary and dynamic shocks. Technical journal of Azad Islam University, 2(2). [Text in Persian]

Ghostin R. Kesservani G. Mose R. Vazque J. Ghenaim A. & Gregoire C. A. (2008). A Confrontation of 1D and 2D RKDG numerical simulation of transitional flow at open-channel junction. International Journal for Numerical Methods in Fluids, 61(7), 752-767.

Baharestani, A. & Banihashemi, M. E. (2010). Modelling of sediment and water movement in dam break using finite volume method. Topography and Civil Engineering Journal. [Text in Persian]

Diaz. C, Nieto, F. & Ferreiro. (2008). Sediment transport models in shallow water equations and numerical approach by high order finite volume methods. Computers & Fluid, 37(3), 299-316.

Liu, Landry, & Garcia. (2008). Two-dimensional scour simulations based on coupled model of shallow water equations and sediment transport on unstructured meshes. Available at:

Pacheco, A. Murillo, J. & Navarro, P. (2012). Finite volumes for 2D shallow water flow with bed-load transport on unstructured grids. Available at:

Chunshui y, Jennifer, u. & Duan, G. (2014). 2- Finite volume for sediment transport in unsteady flow. World Environmental and Water Resources Congress, 1432-1441.

Shams, M., Ahmadi, G., & Smith, D.H. (2002). Computational modeling of flow and sediment transport and deposition in meandering. Advances in Water Resources, 25, 689-699.

Ghobadian, R & Basiri, M. (2015). The effect of downstream curved edge on local scouring at 60 degree open channel junction using SSIIM1 model. Ain Shams Engineering Journal, 39(2), 1-10.

Habibi, S. Rostami, M. & Mosavi, S. E. (2014). Numerical studying flow pattern and sedimentation in the rivers interception, Iranian Journal of Watershed Management Science and Engineering, 8(24). [Text in Persian]

Daneshfaraz, R., & Ghaderi, A. (2017). Numerical investigation of inverse curvature ogee spillway. Civil Engineering Journal, 3, 1146-1156.

Daneshfaraz, R., Minaei, O., Abraham, J., Dadashi, S., & Ghaderi, A. (2019). 3-D numerical simulation of water flow over a broad-crested weir with openings. ISH Journal of Hydraulic Engineering, 1-9.

Alamatian, E. & Jafarzadeh, M.R. (2012). Evaluation of turbulence models in the simulation of oblique standing shock waves in supercritical channel flows. International Journal of Civil Engineering, 10(1), 61-71.

Salvetti, M.V, Guillard, H. & Bilanceri, M. (2012). Sediment transport models for shallow water equation. Available at:

Ghobadian, R. Bajestan, M. & Azari, A. (2008). Studying junction effects on erosion patrren and sedimentation on rivers interception using physical model. Agricultural Research Journal, 8(4). [Text in Persian].

How to Cite
Mohammadamin Torabi, Amirmasoud Hamedi, Ebrahim Alamatian, & Hamidreza Zahabi. (2019). The Effect of Geometry Parameters and Flow Characteristics on Erosion and Sedimentation in Channel’s Junction using Finite Volume Method. International Journal of Engineering and Management Research, 9(2), 115-123.