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

Semiconductor basics summary, N-type (for example add Antimony) The are...

N-type (for example add Antimony) The are materials which have Pentavalent impurity atoms (Donors) added and conduct by the "electron" movement and are called as N-type Semi

Quality engineering and management, Describe the principle parts of a quali...

Describe the principle parts of a quality function deployment matrix

Internal rate of return: multiple alternatives, Internal Rate of Return: Mu...

Internal Rate of Return: Multiple Alternatives To compare multiple alternatives using the IRR as measure of economic worth we must use the incremental approach. It is erroneou

Digital signal processing, compute IDFT using DIT and DFT X(K)={20,-5.828-j...

compute IDFT using DIT and DFT X(K)={20,-5.828-j2.414,0,-0.172-j0.412,0,-0.172+j0.414,0,-5.828+j2.414}

Blending of metal powder, Q.5 Explain briefly the Blending of metal powders...

Q.5 Explain briefly the Blending of metal powders. Ans. Blending of Metal Powder:              The procedure of blending (mixing) powders is taken out for the followi

Enhancement mode mosfet, ENHANCEMENT MODE MOSFET In the enhancement-mod...

ENHANCEMENT MODE MOSFET In the enhancement-mode type, the gate must be forward biased to produce charge carriers in the channel. These devices are normally of and do not condu

Corporate finance, An investment project provides cash inflows of $730 per ...

An investment project provides cash inflows of $730 per year for eight years. What is the project payback period if the initial cost is $3,500? What if the initial cost is $5,000?

Direct from engine compressor, Direct from engine compressor: A Load va...

Direct from engine compressor: A Load valve is switched on from the flightdeck, power for the switch is available once the APU has achieved 95% + 3 sec. This energises the swit

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