Hydraulic Flow through a Channel Contraction: Multiple Steady States
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چکیده
Fig. 3. Plus signs: smooth flows (ii); squares: upstream moving shocks (iii); diamonds: steady shocks (iii); circles: oblique waves (i). Solid stars: flows with three possible states for different configurations and paddle lengths. Indicative error bars. • Three multiple steady states in regions (i/iii/iv): Fig. 4. Multiple states: F0 = 3.07 & Bc = 0.7. Left to right: upstream steady shock (iii), reservoir state with “Mach stem” (iv), and oblique waves (i). Transitions induced by pushing flow. • Flow transition induced by an upstream avalanche of polystyrene beads:
منابع مشابه
Hydraulic Flow through a Contraction: Multiple Steady States
We consider shallow water flows through a channel with a contraction by experimental and theoretical means. The horizontal channel consists of a sluice gate and an upstream channel of constant width b0 ending in a linear contraction of minimum width bc. Experimentally, we observe upstream steady and moving bores/shocks, and oblique waves in the contraction, as single and multiple steady states,...
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