1.4 Write the equation of Euler fluid balance and give his explanation
1.16 What is a living flow area, wetted perimeter, hydrants-crystal-range?
The task № 1.2
The autoclave was filled with 10 liter water and hermetically closed. Determine neglecting the change in volume of the material from the walls of the autoclave pace-ture, the pressure increase it by increasing the water temperature is 40 0C. The coefficient of thermal expansion of the water is βt = 0,00018 1 / deg, and the volume compression ratio equals βw = 4,19 x 10-10 m2 / h.
The task № 1.9
In the furnace and the chimney flue gases have an average temperature of 300 0 C and a specific gravity of 4.3 N / m3. Outside air temperature 14 0C, pressure 760 mm Hg Chimney height of 5 m. Determine the differential pressure (cravings) on both sides of the closed oven door, located at the base.
The task № 1.10
To measure the height of the flight the exact barometer. Before leaving the barometer showed pressure 745 mm Hg, and at the highest point rise - 500 mmHg Determine the lifting height, considering the air temperature along the whole height of 10 0C.
2.4 Write Reynolds, Euler, Froude, Archimedes and explain their physical meaning
2.16 How to determine the value of the hydraulic resistance coefficient for turbulent flow in the pipes?
The task № 2.2
The pipeline diameter d = 156 mm pumped oil density ρ = 900 kg / m3. Determine the volume flow Q and average velocity of flow of Vav, if G = mass flow rate of 50,000 kg / h.
The task № 2.12
Determine the axial velocity in the pipe diameter d = 120 mm under laminar flow, when measured at a distance of r = 40 mm from the wall of the local velocity V = 1,51 m / s.
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