Question

Self Test 2 (Unsteady State mass balance) 1. Problem Statement A Vertical tank of diameter D and height H has a narrow crack of width W running vertically from top to bottom. If the tank is initially filled with water and ailowed to drain through the crack under the influence of gravity; a) Calculate the output volumetric flow rate at any time t Imagine the crack to be a series of adjacent orifices, then, integrate to find the total efflux from the crack in the infinitesimal time dt Self Test 2 s balance) (Unsteady State mas b) Find the expression that will let us calculate the instantaneous depth of the water in the tank as a function of time, t. Draw a graph which will show instantaneous depth of the water in the tank as a function of time d) How long will it take to empty the tank under these conditions?

Answer 1

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