121 اس Report in Fluid... ١٢:٤٣ ص ← Solved Problems in Fluid Mechanics Report in Fluid Mechanics 1. A rectangular gate of dimension 1 m by 4 m is held in place by a stop block at B. This block exerts a horizontal force of 40 kN and a vertical force of 0 kN. The gate is pin-connected at A, and the weight of the gate is 2 kN. Find the depth h of the water. water 2. A closed glass tube (hydrometer) of length L and diameter D floats in a reservoir filled with a liquid of unknown specific gravity S. The glass tube is partially filled with air and partially filled with a liquid that has a specific gravity of 3. Determine the specific gravity of the reservoir fluid. Neglect the weight of the glass walls of the tube. -Air S=7 L/3 L/3 L/3 -Liquid (specific gravity=3) 3. A u-tube filled with mercury (p = 13,550 kg/m3) is rotated about axis A-A. Length L is 25 cm and the column height z is 5 cm. Determine the rotation speed (c). 4- For the U-tube manometer connected as shown calculate h, the differences of mercury (p 13.550 kg/m³) column in the two limbs. z Mercury 2.12 kN/m² 2 kN/m²il aidi WATER 05m 0.4 m COILLY (0.8) 0.3 m % pipe joins two reservoirs whose head difference is 10m. The pipe is 0.2 m diameter, 1000m in length and has a f value of 0.008. a) What is the flow in the pipeline? b) It is required to increase the flow to the downstream reservoir by 30%. This is to be done adding a second pipe of the same dia (that connects at some point along the old pipe and runs down to the lower reservoir. Assuminge diameter and the friction factor are the same as the old pipe, how long should the new pipe be?