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Hydrodynamics Effect: How it works

Hydrodynamics affect the water body mainly by wind drift and waves, which drive the sediment in the water body to move. Some kinds of substances in the water body then began to mix, dissolve, deposite, suspend, adsorb, entrain and cohere (Xu et al., 2009).

In this condition, substances and sediments in the water body will change, which ultimately leads to water quality variety (Liebhold et al., 2004). When the flow velocity is fast, it is hard for eutrophication to occur even if the level of nutrients are high enough to trigger it, because some algae could be washed downstream by the flow before their growth has reached its peak (Zeng et al., 2006). Then the conditions for growth are destroyed and will not result in eutrophication. However, in other slow-flowing water bodies like lakes, reservoirs, estuaries, bays, inland seas, the flow velocity is slow and the water body is changing slowly (Smith, 1935). This condition slows down the spread of the nutrients and aggravates accumulation of the nutrients especially nitrogen and phosphorus, which offer fundamental nutrients for the growth and reproduction of algae.

Importance of hydrodynamics

Benefits of applying hydrodynamics study include: decreased fuel consumption, reduced drag on structures, minimizing noise and vibration, and mitigating unwanted effects, like fouling. Hydraulics deals with the mechanical properties of liquids, focusing on the engineering uses of fluid properties.

Characteristics of hydrodynamic

Other hydrodynamic characteristics determined experimentally included the maximum pressure drop, minimum velocity of partial fluidization, minimum velocity of full fluidization, maximum velocity of partial defluidization, and maximum velocity of full defluidization.

When was hydrodynamics invented?

Bernoulli’s ability to combine careful scientific observation and measurement with a high level of mathematical analysis enabled him to create, by 1738, his treatise Hydrodynamica, which is considered to be one of the great achievements of eighteenth-century science.

What is the most hydrodynamic shape?

For speeds lower than the speed of sound, the most aerodynamically efficient shape is the teardrop. The teardrop has a rounded nose that tapers as it moves backward, forming a narrow, yet rounded tail, which gradually brings the air around the object back together instead of creating eddy currents.

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