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

modified internal rate of return mirr, MODIFIED INTERNAL RATE OF RETURN (M...

MODIFIED INTERNAL RATE OF RETURN (MIRR) This method is a financial analysis to rank alternative investment projects of equal size. This method is modification of internal rate of r

System dynamics , System Dynamics  Crucial to the development of a guid...

System Dynamics  Crucial to the development of a guidance system is an understanding of the dynamics of the system. In particular, it is necessary to understand how the acceler

Numericalle.., The Stefan-Boltzmann law can be employed to estimate the rat...

The Stefan-Boltzmann law can be employed to estimate the rate of radiation of energy H from a surface of copper sphere with radius = 0.15 ±0.01 m, as in H=AesT^4 where H is in watt

Ts diagram, how to find points on Ts diagram?

how to find points on Ts diagram?

Construction and working of electron microscope, Electron Microscope Th...

Electron Microscope The development of the electron microscope was based on theoretical work done by Louis De Broglie, who found that wavelength is inversely proportional to mo

Aircraft engine, what is the basic operation of gas turbine engine?

what is the basic operation of gas turbine engine?

Gas turbine fuel properties - aircraft design, Gas turbine fuel properties ...

Gas turbine fuel properties and specification In the earliest days of the gas turbine engine, kerosene was regarded as the most suitable fuel. It commended itself on the grounds

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