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  2. Hydraulic jumps in rectangular channels - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_Jumps_in...

    1. y 2 /y 1 > 1: depth increases over the jump so that y 2 > y 1 2. Fr 2 < 1: downstream flow must be subcritical 3. Fr 1 > 1: upstream flow must be supercritical. Table 2 shows the calculated values used to develop Figure 8. The values associated with a y 1 = 1.5 ft are not valid for use since they violate the above limits.

  3. Hydraulic jump - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_jump

    Figure 4: An undular front on a tidal bore. At this point the water is relatively deep and the fractional change in elevation is small. A tidal bore is a hydraulic jump which occurs when the incoming tide forms a wave (or waves) of water that travel up a river or narrow bay against the direction of the current. [16]

  4. Bridge scour - Wikipedia

    en.wikipedia.org/wiki/Bridge_scour

    A diagram showing how scour holes are formed. Bridge scour is the removal of sediment such as sand and gravel from around bridge abutments or piers. Hydrodynamic scour, caused by fast flowing water, can carve out scour holes, compromising the integrity of a structure.

  5. Dickerson Whitewater Course - Wikipedia

    en.wikipedia.org/wiki/Dickerson_Whitewater_Course

    A final 100-foot (30 m) section ends in the river, with or without a drop, depending on the river level. Overall slope adds another seven feet of drop, for a total course drop of 15 feet (4.6 m), plus zero to four feet (0 to 1.2 meters) into the river at the end. The following map shows the arrangement of the visible and submerged features.

  6. “History Cool Kids”: 91 Interesting Pictures From The Past

    www.aol.com/lifestyle/history-cool-kids-91...

    The gigantic heart beats 8 to 10 times per minute and each heartbeat can be heard from over 2 miles (3.2 km) away. Their arteries are so large that a full adult size human can swim through them.

  7. Gabion - Wikipedia

    en.wikipedia.org/wiki/Gabion

    Gabion stepped weirs are commonly used for river training and flood control; the stepped design enhances the rate of energy dissipation in the channel, and it is particularly well suited to the construction of gabion stepped weirs. [2] A gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire.