Ideal intake conditions - aircraft engine, Other Engineering

Assignment Help:

Ideal intake conditions:

For air to flow smoothly through a compressor, its velocity should be about 0.5 mach at the compressor inlet; this includes aircraft flying faster than the speed of sound. Hence intakes are designed to decelerate the free stream airflow to this condition over the range of aircraft speeds. Intakes should also convert the kinetic energy into pressure energy without undue shock or energy loss. This means that the ideal compressor inlet pressure should be the same as the total head pressure at the intake lip.

Intake Efficiency

The magnitude of the losses occurring in an intake during ram compression are measured by means of the intake efficiency. Typical optimum efficiencies of some common types of intake, at subsonic speeds assuming straight-through flow, are:

a   Turbo-jet engine Pitot 99 to 96%
Wing root 95 to 87%
Side 89 to 80%

b Turbo-prop engine Annular 82 to 74% (DART)

In cases where the direction of flow of the air is reversed within the intake, these values are reduced by about 10%.

 


Related Discussions:- Ideal intake conditions - aircraft engine

Foreign exchange market and exchange rates, what is the equation relating t...

what is the equation relating the real exchange rate to the nominal exchange rate and domestic and foreign price levels

Computational aerodynamics-guided reading, It is recommended that if possib...

It is recommended that if possible you should buy a copy of this book. It will prove useful for the new fourth year configurational aerodynamics module also. Blackwells bookshop ha

Pressure relief valve - aircraft engine, PRESSURE RELIEF VALVE The pres...

PRESSURE RELIEF VALVE The pressure relief valve shown in the figure. controls the oil pressure at the pre-set value demanded by the system. The valve is normally integral with

Gas metal arc welding (gmaw), Gas metal arc welding (GMAW) is performed by ...

Gas metal arc welding (GMAW) is performed by using direct current reverse polarity as it gives both good cleaning action and fast filler metal deposition rates. A rather high weldi

Starting worki in ccs.., 1- plot and creat x1(t)=4exp(t/5),x2(t)=Sin(2pift+...

1- plot and creat x1(t)=4exp(t/5),x2(t)=Sin(2pift+Pi/2) 2-write a c fucntion to compute convolution of n2 finite series ands plot 3-implemet an FIR filter in c in CCS

Water supply design, what is the use of HEC-HMS modelling in water supply s...

what is the use of HEC-HMS modelling in water supply system ,how we use it? what is the necessary input for the software?

syed, risks involved in moving from a project-centric mode to a mix of pro...

risks involved in moving from a project-centric mode to a mix of projects and

Time value of money-inflation-interest rate-opportunity cost, Time Value of...

Time Value of Money Consider your cheese steak hoagie business. Assume that Phillies will win another World Series, and your business will be hired to serve a party that will

Human Motion Kinetics, Beginning from rest when theta=10 degrees, a 30-kg c...

Beginning from rest when theta=10 degrees, a 30-kg child slides without kinetic friction down the slide which is in the shape of a 2.5 meter circular arc. Determine the child''s sp

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