A Boeing 747 is cruising at a velocity of 250 m/s at a standard altitude of 13 km. What is its Mach number?
Step 11 of 6
- , velocity of the flight,
- , altitude of the flight,
It is necessary to determine Mach number, .
During a heavy rainstorm, water from a parking lot completely fills an 18 -in.-diameter, smooth, concrete storm sewer. If the flowrate is 10 , determine the pressure drop in a 100 -ft horizontal section of the pipe. Repeat the problem if there is a 2 -ft change in elevation of the pipe per 100 ft of its length.
A fluid with a density of 2000 kg/m flows steadily between two flat plates. The bottom plate is fixed and the top one moves at a constant speed in the x direction. The velocity is where y is in meters. The acceleration of gravity is . The only nonzero shear stresses, , are constant throughout the flow with a value of 5 N/m. The normal stress at the origin (x = y = 0) is s . Use the x and y components of the equations of motion to determine the normal stress throughout the fluid. Assume that .