Numerical Simulation of Local Head Loss of Gradually Broadened Channel under Different Discharges

doi:10.11988/ckyyb.20161216

Abstract

Abstract: The water surface profile of gradually broadened channel is simulated with HD (hydrodynamic) model in MIKE software, and the change rules of water surface profile and flow field of local head loss are obtained. The simulation results are compared with results calculated by empirical formula, and the conclusion reveals that the simulated water surface profile of gradually broadened channel agrees well with the calculation result; MIKE could better simulate the local head loss by reducing the difficulty and complexity of formula calculation, hence achieving a precise simulation.

Key words: gradually broadened channel, local head loss, flow rate, MIKE software, empirical formula

CLC Number:

TV143

LI LEI. Numerical Simulation of Local Head Loss of Gradually Broadened Channel under Different Discharges[J]. Journal of Changjiang River Scientific Research Institute, 2018, 35(4): 84-87.

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Numerical Simulation of Local Head Loss of Gradually Broadened Channel under Different Discharges

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