Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30172
Three-dimensional Simulation of Flow Pattern at the Lateral Intake in Straight Path, using Finite-Volume Method

Authors: R.Goudarzizadeh, N.Hedayat, S.H.Mousavi Jahromi

Abstract:

Channel junctions can be analyzed in two ways of division (lateral intake) and combined flows (confluence). The present paper investigates 3D flow pattern at lateral intake using Navier-Stokes equation and κ -ε (RNG) turbulent model. The equations are solved by Finite-Volume Method (FVM) and results are compared with the experimental data of (Barkdoll, B.D., 1997) to test the validity of the findings. Comparison of the results with the experimental data indicated a close proximity between the two sets of data which suggest a very close simulation. Results further indicated an inverse relation between the effects of discharge ratio ( r Q ) on the length and width of the separation zone. In other words, as the discharge ration increases, the length and width of separation zone decreases.

Keywords: 900 junction, flow division, turbulent flow, numerical modeling, flow separation zone.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1079564

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1350

References:


[1] Barkdoll, B.D. (1998)."Sediment control at lateral diversion". PhD dissertation, Civil and Environmental Engineering, University of Iowa.
[2] Grace, J.L. and Pirest, M.S. (1958)."Division of flow in an openchannel junction". Bulletin No.31, Engineering Experimental Station, Alabama Polytechnic Institute.
[3] Hsu, C.C., Tang, C.J., Lee, W.J., and Shieh, M.Y. (2002)."Subcritical itical 900 equal-width open-channel dividing flow". Journal of Hydraulic Engineering. ASCE, 128(7), 716-720.
[4] Kasthuri, B. and Pundarikanthan, N.V. (1987)."Discussion of separation zone at open-channel junction". Journal of Hydraulic Engineering. ASCE, 113(4), 543-544.
[5] Krishnappa, G. and Seetharamiah, K. (1963)."Anew method of predicting the flow in a 90 branch channels". La Houlle Blanche, No.7.
[6] Law and Reynolds. (1966)."Division of flow in an open-channel". Journal of Hydraulic Engineering. ASCE, 192(2), 207-231.
[7] Ramamurthy, A.S. and Sitish, M.G. (1987)."Internal hydraulics of diffusers with uniform lateral momentum distribution". Journal of Hydraulic Engineering. ASCE, 113(3), 449-463.
[8] Ramamurthy, A.S., QU, J., and VO, D. (2007)."Numerical and experimental study of dividing open-channel flow". Journal of Hydraulic Engineering. ASCE, 113(10), 1135-1144.
[9] Rameshwaran, P., and Shiono, K. (2007)."Quasi two-dimensional model for straight overbank flows through emergent vegetation on floodplains". Journal of Hydraulic Research. 45, 302-315.
[10] Rodi, W. (1979)."Turbulent models and their application in hydraulics-at state-of-the art review".IAHR, Delft, Netherlands.
[11] Sridharan, K. (1966)."Division of flow in open-channels". Thesis, India Institute of science, Banglor, India.
[12] Taylor, E.H. (1944)."Flow characteristics at rectangular openchannel junction". Journal of Hydraulic Engineering. ASCE, 109, 893-912.
[13] Yakhot, V., Orszag, S.A., Thangam, S., Gatski, T.B. & Speziale, C.G. (1992)."Development of turbulence models for shear flows by a double expansion technique". Physics of Fluids, Vol. 4, No. 7, and pp1510-1520.