Sometimes life kicks you and you get bored. There are times when you can’t find anything to do, no one to hang out with and nothing interesting happening. What you do when this happens is up to you but don’t just sit there, so here’s… Read More »15 Things You Can Do When You Are Bored Alone At Night
Here is an exciting and fun list of activities. You can either play alone in your house or with friends at home. This includes fun things to do that can boost your creativity and impress your friends or family with what you have created. Whenever… Read More »12 Fun and Creative Ways to Spend Alone Time
Fun and creative things to do when bored at home — or what to do at home when you are bored. There’s nothing worse than that feeling of being cooped up in the house when it’s boring outside! If you’re asked what are some fun… Read More »32 Fun & Creative Things to Do When Bored at Home
Consider a low speed subsonic wind tunnel with a nozzle contraction ratio of 1:20. One side of a mercury manometer is connected to the settling chamber, and the other side to the test section. The pressure and temperature in the test section are 1 atm… Read More »Consider a low speed subsonic wind tunnel with a nozzle contraction ratio of 1:20
A Boeing 747 is cruising at a velocity of 250 m/s at standard altitude of 13 km. What is its Mach Number?
A supersonic nozzle is also a convergent-divergent duct, which is fed by a large reservoir at the inlet to the nozzle. In the reservoir of the nozzle, the pressure and temperature are 10 atm and 300 K, respectively. At the nozzle exit, the pressure is… Read More »A supersonic nozzle is also a convergent-divergent duct, which is fed by a large reservoir
Imagine that you have designed a low speed airplane with a maximum velocity at sea level of 90 m/s. For your airspeed instrument, you plan to use a venture tube with a 1.3:1 area ratio. Inside the cockpit is an airspeed indicator- a dial that… Read More »Imagine that you have designed a low speed airplane with a maximum velocity at sea level of 90 m/s.
An airplane flying at a velocity of 130 mi/h at a standard altitude of 5000 ft. At a point on the wing, the pressure is 1750.0 psf. Calculate the velocity at that point, assuming incompressible flow.
Consider the flow of air through a convergent-divergent duct, such as the venturi described in the problem above. The inlet, throat, and exit areas are 3 m2, 1.5 m2, and 2 m2, respectively. The inlet and exit pressures are 1.02 x 105 and 1.00 x… Read More »Consider the flow of air through a convergent-divergent duct. The inlet, throat, and exit areas are 3 m2
A venturi tube mounted on an airplane has a free stream velocity V1at the inlet. The area relation between the throat and the inlet A2/A1 = 1/4. The pressure difference between the throat and the inlet is given by 𝑃1 − 𝑃2 = 80 𝑝𝑠𝑓.… Read More »A venturi tube mounted on an airplane has a free stream velocity at the inlet. The area relation between…