Underwater vehicles, manned or unmanned, mostly rely on ballast tanks pressurization to control their depth. Compressed air and water are allowed to alternately fill the tanks to vary the overall density of the vehicle.
Project Details
When its overall density is less than that of the surrounding water, the vehicle will rise due to the buoyant force acting on it. That is achieved by filling the ballast tanks with compressed air. Then, when the compressed air is replaced by water, the vehicles overall density will increase, thus allowing its overall weight to surpass the buoyant force acting on it. This project will help us predict and control the sinking rate of underwater vehicles.