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What is the difference between a long rocket fin and a short rocket fin?
A longer fin has increased aerodynamic drag. The geometric relationship between the drag caused by the fins and the center of gravity of the rocket determine the stability of the rocket in flight. Less aerodynamic drag means the rocket can go higher or farther, but it also means the rocket is less stable in flight. This tradeoff has to be considered in the design of the rocket.
What causes engine back pressure?
Usually back pressure is caused by worn piston rings, combustion gasses passing the rings into the sump, there are also some engines which have positive oil pan ventilation trough the air filter with a suction pipe (BMW engines)Back pessure goes hand in hand with light blue smoke and lack of compression.
What is the differeance between upwind and downwind turbines?
An Upwind turbine faces into the wind with the turbine blades in front of the Nacelle* while a Downwind turbine has blades to the rear of the Nacelle and faces away from the wind. Up-wind turbines are by far and away the most common, but down-wind turbines (usually two-bladed) are also used in certain situations.In very strong winds the turbine blades of a wind turbine generator flex under enormous forces. With a down-wind turbine the blades flex AWAY from the mast which prevents them from crashing into it. Up-wind turbines need to be designed so that the blades are positioned at a good distance from the mast, and they must also be engineered to be inflexible (which costs more money). In addition, when the blades of a down-wind turbine bend it reduces the stresses on the mast as wind energy is lost in bending the blades. Finally, down-wind turbines do not need a tail (or motorised yaw mechanism) to align them with wind as the turbine blades perform this task (although this can also be a serious disadvantage in large down-wind turbines if wires carrying huge currents are getting twisted).Down-wind turbines on the other hand are generally noisier (additional aerodynamic noise), and the blades are subject to more forces than those of up-wind turbines. Another serious disadvantage of a down-wind turbine is wind shadow behind the mast causing a drop in power each time a blade passed behind the mast.*Nacelle = is located at the top of the mast and contains the rotor and generator, and sometimes a gearbox. Basically it is everything except the turbine blades, tail, and mast.
What is aerodynamic blockage and mechanical blockage?
Salpingitis is more common in infertile women, the reason of salpingitis is caused by infection of pathogen.Pathogen is mainly caused by staphylococcus, streptococcus, escherichia coli, gonococcus, bacillus proteus, pneumococci and chlamydia.
What is the aerodynamic simulation?
Aerodynamic simulation
Are kayaks aerodynamic?
Kayaks are hydrodynamic not aerodynamic. Aerodynamic means 'of the air'. People don't fly on kayaks.
What is a sentence for aerodynamic?
"The spy plane was very aerodynamic." :-)
How can you use the word aerodynamic in a sentence?
I can give you several sentences.The new plane is more aerodynamic than the old one.That car is designed to be aerodynamic to conserve gas.Birds are aerodynamic.
Do Frisbee have aerodynamic?
yes it is smooth and small and round. it is aerodynamic
How is a fighter jet aerodynamic?
The shape of the aircraft makes it aerodynamic.
Is a biplane aerodynamic?
Yes, a biplane is very aerodynamic,with lots of 'lift'
What does it mean to say you can be aerodynamic?
aerodynamic |ˌe(ə)rōdīˈnamik|adjectiveof or relating to aerodynamics : aerodynamic forces.• of or having a shape that reduces the drag from air moving past : the plane has a more aerodynamic shape.
Is aluminum aerodynamic?
Aluminum can be shaped to be aerodynamic, yes. Aerodynamics is about shape, not substance.
What are the two types of thrust reverser?
The two types of thrust reverser are the target-style thrust reverser and the clamshell-style thrust reverser. The target-style thrust reverser redirects the jet exhaust forward using a metal plate or "bucket." The clamshell-style thrust reverser consists of two doors that open outwards to redirect the jet exhaust.
What is the definition of aerodynamic?
Aerodynamic means the dynamics that is applied on airplanes. It is used for airplanes and their flights.
