Subcritical Flow over Rectangular Side Weir

Gene expression programming to predict the discharge coefficient in rectangular side weirs

“…Researchers including Subramanya and Awasthy [2], Yu-Tech [3], Nandesamoorthy and Thomson [4], El-Khashab [5], Ranga Raju et al [6], Hager [7], Cheong [8], Singh et al [9], Swamee et al [10], Jalili and Borghei [11], and Ghodsian [12] have worked in this area. In an experimentally study, Borghei et al [13] formulated an equation to calculate the discharge coefficient of the flow passing over a rectangular side weir.…”

Discharge Coefficient for Sharp-Crested Side Weir in Supercritical Flow

“…According to his relationship, the effect of Fr x on C m gradually reduces with increasing Fr v On the contrary, the behaviour with subcritical flow is reported to be completely different as the coefficient C m gradually decreases with />, (Borghei et al [2] and Hager [5]). Swamee et al [17] has given an excellent comparison of different relationships reported in the literature to estimate discharge coefficients using Fr x for subcritical flows. Figure 7 shows a comparison between measured and computed discharges using discharge coefficients estimated by Eqs.…”

“…Many studies have been carried out in the past to investigate the discharge over side weirs under subcritical flows (Subramanaya et al [15]; El Khashab et al [3]; Ranga Raju et al [13]; Hager [6]; Singh [14]; Swamee et al [16,17]; Borghei et al [2] and many others) and very few studies are reported on side weir flow with supercritical flow. The side weir with supercritical approach flows are also of much interest to civil engineers as such conditions are encountered in practice, particularly in relatively steep and smooth channels.…”

Discharge coefficient of compound triangular–rectangular sharp-crested side weirs in subcritical flow conditions

“…The side weir is normally installed at one side of a channel to divert flow laterally. Nadesamoorthy and Thomson [16], Subramanya and Awasthy [20], Yu-Tek [23], Ranga Raju et al [18], Hager [10], Cheong [3], Singh et al [19], Swamee et al [21], Jalili et al [12], Ghodsian [7], Borghei et al [1,2], and Emiroglu et al [6] presented equations for discharge coefficients of rectangular, sharp-crested side weirs based on experimental results. Kumar and Pathak [14] and Ghodsian [9] also presented equations for discharge coefficients of triangular sharp-crested side weirs based on experimental results.…”

“…Kumar and Pathak [14] and Ghodsian [9] also presented equations for discharge coefficients of triangular sharp-crested side weirs based on experimental results. Swamee et al [21] used an elementary analysis approach to estimate the discharge coefficient in smooth side weirs through an elementary strip along the side weirs. Ghodsian [8] studied behavior of rectangular side weir under supercritical flow conditions.…”