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

Actuators , Actuators  The actuator consists of the control surfaces...

Actuators  The actuator consists of the control surfaces and associated servomechanisms, and is used to change the missile attitude and trajectory or flight path.

thermoelectric effect, Thermoelectric effect The measurement of temper...

Thermoelectric effect The measurement of temperature using a thermocouple relies on Seebeck effect. The electrons occupy different energy levels in different materials

Auto cad, Assignment Title: Die Press Assembly Drawing The objective of th...

Assignment Title: Die Press Assembly Drawing The objective of this assignment is to demonstrate the following concepts of design. • Extrude • Revolve • Fillet • Dimensioning • To

Die press assembly , how to make Die Press Assembly Drawing in autocad?

how to make Die Press Assembly Drawing in autocad?

Lean enterprise, a department manufactures a produt using a kanban system. ...

a department manufactures a produt using a kanban system. data is demand/hr= 30, container size= 5, unit processing time= 1.25 min. find the minimum number of kanban assuming reple

Risk management, discuss the value of risk analysis and how the process can...

discuss the value of risk analysis and how the process can be used t derive project management decisions under conditions of uncertainty

Problem, the royal canadian hillies plan to locate a brandy carryout in the...

the royal canadian hillies plan to locate a brandy carryout in the Yukan.A number of saint Bernard dogs ,trained by sergeant preston ,will be used to rescue lost tourists looking f

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