Numerical investigation of mining pit effects on maximum scour depth around bridge pier with different shape

Hamidi, Mehdi; Koohsari, Amin; Khalili, Ali Mahdian

doi:10.1007/s40808-024-02057-5

Model. Earth Syst. Environ.

2024

DOI: 10.1007/s40808-024-02057-5

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Numerical investigation of mining pit effects on maximum scour depth around bridge pier with different shape

Mehdi Hamidi,

Amin Koohsari,

Ali Mahdian Khalili

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2024

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Cited by 2 publications

References 34 publications

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Flow induced form: Shape optimization of bridge piers using CFD analyses and adjoint method

Kiriççi,

Çelik

2024

Ocean Engineering

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Flow induced form: Shape optimization of bridge piers using CFD analyses and adjoint method

Kiriççi,

Çelik

2024

Ocean Engineering

View full text Add to dashboard Cite

Energy Dissipation Assessment in Flow Downstream of Rectangular Sharp-Crested Weirs

Sohrabzadeh Anzani,

Kantoush,

Mahdian Khalili

et al. 2024

Water

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Sharp-crested weirs are commonly used in hydraulic engineering for flow measurement and control. Despite extensive research on sharp-crested weirs, particularly regarding their discharge coefficients, more information is needed via research on their energy dissipation downstream. This study conducted experimental tests to assess the influence of contraction ratio (b/B) of rectangular sharp-crested weirs (RSCWs) on energy dissipation downstream under free flow conditions. Five RSCWs with different b/B equals 6/24, 7/24, 8/24, 9/24, and 10/24 were used. The results showed a consistent decrease in relative energy dissipation (Δ𝐸𝑟) with an increase in the head over the weir. Furthermore, as the discharge per unit width (q) increased, the relative energy dissipation (Δ𝐸𝑟) decreased, indicating more efficient discharge over the weir. A higher b/B further reduces Δ𝐸𝑟, suggesting that wider weirs are more effective in minimizing energy losses. The maximum relative residual energy (E1/E0) and relative energy dissipation (Δ𝐸𝑟) occurred at b/B = 10/24 and 6/24, with values of 0.825 and 0.613, respectively. Additionally, the maximum discharge coefficient (Cd) of RSCWs is found at b/B = 6/24, with an average value of 0.623. The results support the accuracy of the proposed equation with R2 = 0.988, RMSE = 0.0083, and MAPE = 1.43%.

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Numerical investigation of mining pit effects on maximum scour depth around bridge pier with different shape

Cited by 2 publications

References 34 publications

Flow induced form: Shape optimization of bridge piers using CFD analyses and adjoint method

Flow induced form: Shape optimization of bridge piers using CFD analyses and adjoint method

Energy Dissipation Assessment in Flow Downstream of Rectangular Sharp-Crested Weirs

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