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Project Report - Hydrostatic Pressure
KIG1003 - Mechanical Engineering Laboratory I &Communication
14 Pages • Essays / Projects • Year Uploaded: 2022
The experiment is conducted to determine the magnitude of hydrostatic forces and the position of centre of pressure for fully and partially submerged plane surfaces in water. The experimental and theoretical position of centre of pressure are then compared. First of all, the dimensions of the quadrant are measured. The adjustable counterbalance is then customised so that the balance arm is horizontal and still while ensuring that it coincides with the middle line of the beam level indicator. With the drain valve closed, a 50g weight is added and water is admitted to the top of the tank to counterbalance the weight of the balance arm. The scale at the end face of the quadrant which is the value of y is then measured and recorded. The procedure is repeated five times by increasing the load in each time. The experiment is then reversely repeated by decreasing the load to obtain a more accurate result. The result obtained is tabulated and a graph of m/y^2 against y is plotted. The slope and the intercept (experimental value) of the graph are determined and compared to the theoretical value (-ρb/6L) and (ρb/2L(a+d)) respectively. For part B of the experiment, the experimental value of the centre of pressure is determined and compared to the theoretical value of the centre of pressure. From the data obtained, it reveals that the theoretical value varies slightly compared to the experimental values. The discrepancy may due to some assumptions and errors made during the experiment which will later be discussed in the discussion section.
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