Engineering Project: Flood Resistant Terminal w/ Water Driven Propellor

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The discussion centers on designing a Flood Resistant Terminal that utilizes a water-driven propeller to reduce the force exerted on its pontoon during flood events. The project aims to counteract horizontal forces caused by fast-moving floodwaters, which can reach velocities of 2.5-3.5 m/s. Suggestions include allowing the structure to flow with the current or using a motor to counteract the pressure on the pilings. However, concerns are raised about the feasibility of creating a propeller that effectively reduces stress without introducing additional drag. Overall, the conversation highlights the complexities of engineering solutions for flood resistance.
hwall95
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Hey everyone,
For my engineering project I am designing a Flood Resistant Terminal and just wondering if you guys reckon it would be possible to create a propellor that creates thrust to minimise the force exerted on the pontoon by the water. The only way I could think to be able to create it would be channel the water to create a rotational force which is more likely to cause more trouble then it's worth. However if anyone has and thoughts on the matter it'd be greatly appreciated.
Thanks, Harry
 
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hwall95 said:
minimise the force exerted on the pontoon by the water.
What do you mean? Horizontal forces due to waves?
 
Well during a flood event the river in which the pontoon is being designed for, reches velocities between 2.5-3.5 m/s, so if horizontal is parallel to the riverbank then yes but not really waves, more the water body itself traveling down the river
 
Forces: equal and opposite.

If you don't want the water to exert a force on your pontoon, then you've got to let it flow with the current. Unless you meant that you would build a free standing struction apart from the pontoon which would help deflect or redirect or whatever some of the water...
 
Okay sorry I didn't explain the no force part well, when the pontoon is getting pushed by the floodwaters, tremendous pressure is forced against its pilings which stop any horizontal motion, however if you were to put a motor on the back it could counter some of that force to release stress fractures that may occur over time. Therefore my question was about the feasibility of design a propellor that is rotated by the water to create a thrust that lessens the force acting upon the pilings. The same way if you back of a small fan in will start turning...
 

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