An approximate equation for the net thrust of a rocket engine is: 【参考译文】火箭发动机净推力的近似方程为: Where FN is the net thrust, Isp,Vac is the specific impulse, g0 is a standard gravity, m˙ is the propellant flow in kg/s, Ae is the cross-sectional area at the exit of the...
Detonation engines operate due to the pressure part of the general thrust equation, where the action is in the detonative combustion. Detonative combustion takes place at constant pressure, which theoretically should lead to a greater efficiency than boring old deflagration, but the risks are somew...
PURPOSE:To enhance the thrust of a jet engine, by partitioning the inside of a pipe at suitable intervals with the use of conical rings, by arranging them in a combustion chamber and the inside and outside of a nozzle, and by feeding air into the combustion chamber and the nozzle, ...
equation=n.方程(式);等式 equip=vt.装备,配备 equipment=n.装备,设备,配备 equivalent=a.相等的;等量的 era=n.时代,年代;纪元 erect=vt.建造;使竖立 error=n.错误,谬误;差错 escape=vi.逃跑;逸出 n.逃跑 especially=ad.特别,尤其,格外 essay=n.短文,散文,小品文 essential=a.必要的,本质的 establish=vt...
EngineJetJetengineThrust Replies: 2 Forum:Mechanics Force on three Bolts holding up a Jet Engine My solution was that there would be a force of 0 Newtons on the bolt as the bolt is not moving. But this answer is wrong. Where am I going wrong?
Homework Statement Calculate the engine thrust required to produce an acceleration of 4 m/s^-2 in a jet of mass 800 kg as it takes off along the runway. The air resistance is 500 N Appreciate if anyone can check if I have used the correct equation, and my answer. Homework Equations F...
A Method of Measuring Jet Thrust of Turbojet Engines in Flight Installations A thrustometer based on this equation was installed on an afterburning turbojet engine equipped with a fixed area convergent exhaust nozzle. The results indicated that a meter based on this correlation would be applicable...
As an engine is throttled back there will be a variation of SFC with net thrust, because of changes in the engine cycle (e.g. lower overall pressure ratio) and variations in component performance (e.g. compressor efficiency). When plotted, the resultant curve is known as a thrust/SFC ...
What is a turbo jet engine? What oil did the first jet engine use? What is reverse thrust in a jet engine? What is wet starting a jet engine? What is the thermal efficiency of a jet engine? What is the vertical thrust on a small jet engine? What is gas internal combustion engine?
A jet engine produces thrust in a similar way to the engine/propeller combination. Both propel the aircraft by thrusting a large weight of air backwards (Figure 2-4), one in the form of a large air slipstream at comparatively low speed and the other in the form of a jet of gas at ...