Hydraulic performance of labyrinth side weirs using vanes or piles

In the present study, methods for improving the hydraulic performance of labyrinth side weirs in a rectangular channel are reported based on model experimentation. For this purpose different arrangements and configurations of groups of guide vane plates and piles in the side weir flow field were tested. Experiments were conducted on labyrinth side weirs of different lengths and sill heights fitted in the test section of a rectangular glass-walled channel. Depths of flow were measured in both longitudinal and crosswise directions at regular intervals and their profiles were studied. It was found that the discharge coefficient of the labyrinth side weirs under these conditions gave considerably higher values compared with that of classical simple labyrinth side weirs. Presented in the form of graphs and simplified equations, these new methods enable the designers to improve the hydraulic performance of a given labyrinth side weir. Useful guidance on the layout and construction of vanes and piles across the ...

[1]  Alireza Keshavarzi,et al.  A study of spatial variation of discharge coefficient in broad‐crested inclined side weirs , 2009 .

[2]  V K Collinge.  THE DISCHARGE CAPACITY OF SIDE WEIRS. HYDRAULICS PAPER NO 13. SYMPOSIUM OF FOUR PAPERS ON SIDE SPILLWAYS. , 1957 .

[3]  W Frazer.  THE BEHAVIOUR OF SIDE WEIRS IN PRISMATIC RECTANGULAR CHANNELS. HYDRAULICS PAPER NO 14. SYMPOSIUM OF FOUR PAPERS ON SIDE SPILLWAYS. , 1957 .

[4]  Özgür Kisi,et al.  Predicting discharge capacity of triangular labyrinth side weir located on a straight channel by using an adaptive neuro-fuzzy technique , 2010, Adv. Eng. Softw..

[5]  Santosh K. Pathak,et al.  TRIANGULAR SIDE WEIRS , 1987 .

[6]  A El Khashab,et al.  Experimental Investigation of Flow Over Side Weirs , 1976 .

[7]  Smith,et al.  A THEORETICAL CONSIDERATION OF SIDE WEIRS AS STORMWATER OVERFLOWS. HYDRAULICS PAPER NO 11. SYMPOSIUM OF FOUR PAPERS ON SIDE SPILLWAYS. , 1957 .

[8]  Willi H. Hager,et al.  Wastewater Hydraulics: Theory and Practice , 1999 .

[9]  Roger H. Smith,et al.  Design Procedure for Flow over Side Weirs , 1991 .

[10]  J W Allen.  THE DISCHARGE OF WATER OVER SIDE WEIRS IN CIRCULAR PIPES. HYDRAULICS PAPER NO 12. SYMPOSIUM OF FOUR PAPERS ON SIDE SPILLWAYS. , 1957 .

[11]  Nihat Kaya,et al.  Discharge Capacity of Labyrinth Side Weir Located on a Straight Channel , 2010 .

[12]  Kittur G. Ranga Raju,et al.  Side Weir in Rectangular Channel , 1979 .

[13]  Willi H. Hager.  Supercritical Flow in Circular‐Shaped Side Weir , 1994 .

[14]  Masoud Ghodsian,et al.  DISCHARGE COEFFICIENT FOR SHARP-CRESTED SIDE WEIR IN SUBCRITICAL FLOW , 1999 .

[15]  Yalçın Yüksel,et al.  SIDE-WEIR FLOW IN CURVED CHANNELS , 1998 .

[16]  H. Aǵaçcioǵlu,et al.  Discharge Coefficient of a Triangular Side-Weir Located on a Curved Channel , 2004 .

[17]  K. H. V. Durga Rao,et al.  Study of Flow Over Side Weirs Under Supercritical Conditions , 2008 .

[18]  Amruthur S. Ramamurthy,et al.  Nonlinear PLS Method for Side Weir Flows , 2006 .

[19]  Mauro Fiorentino,et al.  Hydraulic features of supercritical flow along prismatic side weirs , 2001 .

[20]  Ali Uyumaz,et al.  Flow Over Side Weirs in Circular Channels , 1985 .

[21]  Ebubekir Yüksel,et al.  Effect of Lateral Water Surface Profile on Side Weir Discharge , 2003 .

[22]  Willi H. Hager,et al.  Experiments in Side‐Channel Spillways , 1989 .

[23]  Masoud Ghodsian.  Supercritical flow over a rectangular side weir , 2003 .