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2010•Journal of Irrigation and DrainageRequires access

Hydraulic Optimization of Turbulent Flow inside Inlet Duct in Large Shaft Tubular Pumping Stations

Jiang Hong-meib

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Abstract

The Reynolds Averaged Navier Stokes(RANS)equation was applied for simulation of seven different design schemes about the inlet duct of Sha-ping large shaft tubular pumping station in Guangdong Province.The standard κ-e model based on the Boussinesq hypothesis and SIMPLEC algorithm was adopted in the calculation.The velocity contours on specific cross section and the hydraulic loss of the tubular inlet duct were obtained.A general conclusion is that all the design methods are reasonable and the scheme 1 is the best as far as tubular pumps are applied in low-head pumping stations.The research will provide reference and benefit for the optimization and design of the similar pumping stations.

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What this paper is about

The Reynolds Averaged Navier Stokes(RANS)equation was applied for simulation of seven different design schemes about the inlet duct of Sha-ping large shaft tubular pumping station in Guangdong Province.The standard κ-e model based on the Boussinesq hypothesis and SIMPLEC algorithm was adopted in the calculation.The velocity contours on specific cross section and the hydraulic loss of the tubular inlet duct were obtained.A general conclusion is that all the design methods are reasonable and the scheme 1 is the best as far as tubular pumps are applied in low-head pumping stations.The research will provide reference and benefit for the optimization and design of the similar pumping stations.

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Available abstract

The Reynolds Averaged Navier Stokes(RANS)equation was applied for simulation of seven different design schemes about the inlet duct of Sha-ping large shaft tubular pumping station in Guangdong Province.The standard κ-e model based on the Boussinesq hypothesis and SIMPLEC algorithm was adopted in the calculation.The velocity contours on specific cross section and the hydraulic loss of the tubular inlet duct were obtained.A general conclusion is that all the design methods are reasonable and the scheme 1 is the best as far as tubular pumps are applied in low-head pumping stations.The research will provide reference and benefit for the optimization and design of the similar pumping stations.

Key concepts: Inlet, Duct (anatomy), Reynolds-averaged Navier–Stokes equations, Turbulence, Mechanics, Hydraulic head, Marine engineering, Environmental science

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