Method of calculating the thrust forces-engine performance, Other Engineering

Assignment Help:

Method of calculating the thrust forces:

The thrust forces or gas loads can be calculated for the engine, or for any flow section of the engine, provided that the areas, pressures, velocities and mass flow are known for both the inlet and outlet of the particular flow section.
The distribution of thrust forces shown in Fig 2.1. can be calculated by considering each component in turn and applying some simple calculations. The thrust produced by the engine is mainly the product of the mass of air passing through the engine and the velocity increase imparted to it (ie. Newtons Second Law of Motion), however the pressure difference between the inlet to and the outlet from the particular flow section will have an effect on the overall thrust of the engine and must be included in the calculation.
To calculate the resultant thrust for a particular flow section it is necessary to calculate the total thrust at both inlet and outlet, the resultant thrust being the difference between the two values obtained.

938_engine performance.png

Calculation of the thrust is achieved using the following formula:
Thrust = (A*P)+WVj/g
Where

A = Area of flow section in sq. in.
P = Pressure in lb. per sq. in.
W = Mass flow in lb. per sec.
Vj = Velocity of flow in feet per sec.
g = Gravitational constant 32.2 ft. per sec. per sec.

 

 


Related Discussions:- Method of calculating the thrust forces-engine performance

Dynamic model of pitching motion , It is instructive to investigate the pit...

It is instructive to investigate the pitching motion caused by a disturbance from trim due to a control surface deflection. We shall assume that the velocity remains constant, and

Manufacturing technology, explain any two finishing processes in detail wit...

explain any two finishing processes in detail with neat diagram

Aerodynamics-influence on transition, Influence on transition Reynold...

Influence on transition Reynolds number - relates importance of viscousforces (relative to inertia) Lower Re - molecular diffusion more important; disturbances damped out

Radar systems, Radar Systems Radar is an acronym for RAdio Detection...

Radar Systems Radar is an acronym for RAdio Detection And Ranging.  A radar uses an antenna to transmit a series of electromagnetic waves or pulses, and an antenna (usual

Programming, A charitable organization wants to design a special ATM machin...

A charitable organization wants to design a special ATM machine to be used by needy people. The association supplies the needy person with a pin number to be able to use the ATM

Vlsi, Working of bi- CMOS invertor in vlsi

Working of bi- CMOS invertor in vlsi

Free Vibration Problem, I have a multi-part three mass, three spring and th...

I have a multi-part three mass, three spring and three coordinate system that I need to find: The free vibration of the second mode Magnitude of the steady-state force based on a g

Virtual prototyping techniques, Virtual prototyping techniques provide uni...

Virtual prototyping techniques provide unique way of interacting with computer data and images. These removes the barriers of key board, monitor and mouse and allow user to experi

Architectural Design and Drawing, how can I improve my G+4 apartment with r...

how can I improve my G+4 apartment with rendering with pen and ink

Nicol Prism., Explain the construction of nicol prism and its function.

Explain the construction of nicol prism and its function.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd