Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Choked Nozzle
Considering the formula for thrust under "choked" nozzle conditions: Thrust =(P-P0 )A + WVj /g
Where: P = Pressure P = Ambient Pressure A = Area W = Mass Flow V = Velocity
It can be seen that the thrust can be further affected by a change in the mass flow rate of air through the engine and by a change in jet velocity. An increase in mass airflow may be obtained by using water injection to cool the air and increases in jet velocity by using after-burning.
Changes in ambient pressure and temperature considerably influence the thrust of the engine. This is because of the way they affect the air density and hence the mass of air entering the engine for a given engine rotational speed.
Thrust Correction - Turbojet
To enable the performance of similar engines to be compared when operating under different climatic conditions, or at different altitudes, correction factors must be applied to the calculations to return the observed values to those which would be found under I.S.A. conditions. For example, the thrust correction for a turbo-jet engine is:
Thrust (lb) (corrected) = thrust (lb) (observed) x 30/Po • Where P0 = atmospheric pressure in inches of mercury (in Hg) (observed)
30 = I.S.A. standard sea level pressure (in Hg)
A basic instrumentation system consists of a transducer, conditioning amplifier, and analog digital converter connected (in general) by analog and digital transmission lines.
two frames are not joint properly so create gap between two frames so material lick from this gap
How do comets get their tails? - Most comets stay frozen in the outer solar system. Only a few enter the inner solar system where they can grow tails. - When a comet nears the sun
what are the different phosphates used in water treatment?
Question 1 Define the term technology. Write a effective short note on evolution and growth of technology Question 2 Citing an example, state and explain the reasons that com
In Corporate finance, Experts engaged in this occupation have the liability to increase the organization's revenue, shareholder's money, investment spending budget and determining
what is a procedure of solving the questions using hanning window while designing a fir filter?
Firm A needs to purchase a new machine. If the machine is purchased, it will replace an old machine purchased 10 years ago for €105,000 and which is being depreciated on a straight
4-7 DuPont and Net Income Ebersoll Mining has $6 million in sales, its ROE is 12%, and its total assets turnover is 3.2x. The company is 50% equity financed, and it has no preferr
Testing After Install After installation of a propeller, the engine must be ground run in order to check the propeller for correct function and operation. Aircraft propeller in
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd