Engineering Project: Flood Resistant Terminal w/ Water Driven Propellor

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SUMMARY

The discussion centers on designing a Flood Resistant Terminal that utilizes a water-driven propeller to minimize the force exerted on the pontoon by floodwaters. The river's velocities during flood events reach between 2.5-3.5 m/s, necessitating a design that allows the pontoon to flow with the current to reduce horizontal forces. Participants suggest that while a propeller could counteract some of the forces acting on the pilings, it may introduce additional drag, complicating the design. Alternative solutions, such as breakwaters, are proposed to redirect water forces and mitigate stress on the structure.

PREREQUISITES
  • Understanding of fluid dynamics and water flow behavior
  • Knowledge of structural engineering principles related to flood resistance
  • Familiarity with propeller mechanics and thrust generation
  • Experience with design considerations for marine structures
NEXT STEPS
  • Research the principles of fluid dynamics in flood scenarios
  • Explore the design and implementation of breakwaters for flood protection
  • Investigate the mechanics of water-driven propellers and their efficiency
  • Study structural reinforcement techniques for pontoon pilings under dynamic loads
USEFUL FOR

Engineers, marine architects, and project managers involved in flood-resistant infrastructure design and those interested in innovative solutions for mitigating flood impact on structures.

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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