Free surface flow is a classical problem in hydrodynamics, such as flow under a sluice gate. The ratio between the uniform depth at far downstream and the height of the gate, called contraction coefficient, is important in building the sluice gate. In this report, that number is calculated based on a model of potential flow, without involving gravity. A conformal mapping and defining an analytical function can solve the model, and the contraction coefficient gives 0.611, that agrees to the result in reference, i.e.,

free-surface flow, zero gravity, analytical complex function.

Received: May 8, 2021; Accepted: June 29, 2021; Published: August 28, 2021

How to cite this article: R. Widyawati and L. H. Wiryanto, Zero Gravity of Flow Under A Sluice Gate, Advances and Applications in Fluid Mechanics 26(2) (2021), 115-121. DOI: 10.17654/FM026020115

This Open Access Article is Licensed under Creative Commons Attribution 4.0 International License

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