Abstract / Description of output
Jet-induced mixing is often used to prevent stagnation in shallow service reservoirs. This paper describes a nonorthogonal boundary-fitted model for simulating flows in reservoirs of arbitrary shape. The numerical model solves the curvilinear shallow water equations that are expressed in terms of the depth-averaged contravariant velocity components and free surface elevation. Results are presented for the case of jet-forced how in a circular reservoir where the inlet and outlet stems are diametrically opposite. Excellent agreement is obtained with alternative analytical and numerical schemes, at inlet Reynolds numbers equal to 10 and 25. A further comparison is given between numerical simulations and experimental measurements of the steady-state velocities in a circular reservoir where the inlet and outlet stems are diametrically asymmetric. Although the present application concerns steady jet-forced circulation, the contravariant shallow water equations should be suitable for modeling wind-driven circulation or tidal flows.
Original language | English |
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Pages (from-to) | 432-439 |
Number of pages | 8 |
Journal | Journal of Hydraulic Engineering |
Volume | 123 |
Issue number | 5 |
Publication status | Published - May 1997 |
Keywords / Materials (for Non-textual outputs)
- JET-FORCED FLOW
- NUMBER