A rectangular vessel when full of water

It is known that it takes five minutes to empty a rectangular vessel when filled one-third of its volume with kerosene through an orifice in its bottom.

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A rectangular vessel when full of water

The damping efficiency of vertical porous baffles is investigated for a dynamically coupled fluid-vessel system. The system comprises of a two-dimensional vessel, with a rectangular cross-section, partially filled with fluid, undergoing rectilinear motions with porous baffles obstructing the fluid motion. The fluid is assumed to be inviscid, incompressible and irrotational such that the flow in each region is governed by a velocity potential. Numerical evaluations of the characteristic equation show that the lowest frequency mode typically has the smallest decay rate, and hence will persist longest in an experimental setup. The maximum decay rate of the lowest frequency mode occurs when the baffles split the vessel into identically sized regions. Choudhary, S. When a vessel, partially filled with fluid, is constrained to move in some prescribed motion, the fluid within can experience complex motions. As the fluid sloshes back and forth in the vessel it interacts with the vessel walls, generating forces and moments on the vessel. If the vessel is free to move under the forces generated by the fluid motion perhaps in some constrained manner then this coupled motion could be stabilizing or destabilizing to the overall system. A simple everyday example of this instability is when we spill coffee while walking to our seat [ 1 ]. The destabilizing aspect of coupled sloshing can have disastrous effects, such as capsizing King crab boats [ 2 ], so being able to identify and mitigate against such effects is important.

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A rectangular vessel when full of water

How much time will it take to be emptied when half filled with water? A rectangular vessel when full of water takes 10 minutes to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water. A hemispherical tank full of water is emptied by a pipe at the rate of 3 4 7 litres per second. How much time will it take to empty half the tank, if it is 3m in diameter? A water tank is 2 5 th full. Pipe A can fill the tank in 10 minutes and pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

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Now first of all i would like to tell you the force exerted by the fluid on a vertical plate. Whilst there are a varying array of results on such systems, the key messages are that the width of the baffles are not hugely significant, but the position and composition of the baffles are key to the amount of damping observed in the system [ 21 , 22 ]. Delhi District Court Group C. In the shallow-water limit, the characteristic equation simplifies to 2. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion Assertion is correct but Reason is incorrect Both Assertion and Reason are incorrect. The fluid was assumed to be inviscid, incompressible and irrotational, such that it can be written in terms of a velocity potential in each connected region. A large tank is filled with water to a height H. Weidman PD, Turner MR Experiments on the synchronous sloshing in suspended containers described by shallow-water theory. Fluid Dyn Res 48 3 Bihar Vidhan Sabha Office Attendant. Maharashtra Forest Department Surveyor. Select Grade 6th 7th 8th 9th 10th 11th 12th 12th Pass Please choose the valid grade. Class Two capillaries of same length and radii in the ratio 1 : 2 are connec