User talk:Abhisheksingh45

vertical movement of submarine:-

1) A submarine operates using the Archimedes' principle by using the buoyancy.

The buoyancy is controlled by the ballast tank system. A submarine resting on the surface has positive buoyancy, which means it is less dense than the fluid around it and will float. At this time, the ballast tanks are mainly full of air. To submerge, the submarine must have negative buoyancy. Fluid coming in through the ports forces air out the vents, and the submarine begins to sink. The submarine ballast tanks now filled with fluid is denser than the surrounding fluid. The exact depth can be controlled by adjusting the fluid to air ratio in the ballast tanks. Submerged,the submarine can obtain neutral buoyancy. That means the weight of the submarine equals the amount of fluid it displaces. The submarine will neither rise nor sink in this state. To make the submarine rise, compressed air is blown into the tank forcing the fluid out of the tank. The submarine gains positive buoyancy becomes less dense than the fluid and rises.

2) LIFT force

It represents a net force that acts perpendicular to the direction of the relative motion of the fluid. The Lift force is expressed in terms of coefficient of lift.The coefficient is defined as the ratio of corresponding force to the dynamic force on the projected area/ Coefficient of lift is given as-

C_{L}=/frac{2L}{\rho×U_{2}×A}

Your contributed article, A45: Movement of submarine through a fluid


Hello, I noticed that you recently created a new page, A45: Movement of submarine through a fluid. First, thank you for your contribution; Wikipedia relies solely on the efforts of volunteers such as you. Unfortunately, the page you created covers a topic on which we already have a page – Submarine. Because of the duplication, your article has been tagged for speedy deletion. Please note that this is not a comment on you personally and we hope you will continue helping to improve Wikipedia. If the topic of the article you created is one that interests you, then perhaps you would like to help out at Submarine – you might like to discuss new information at the article's talk page.

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