Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Nozzle Area and Shape Control
In a high by-pass ratio engine with a single-stage fan without inlet guide vanes, the predominant sources governing the overall noise level are the fan and turbine. If the fan speed can be reduced without loss of thrust, then the engine noise level would be reduced. At conditions below maximum thrust, the multi-spool engine enables this to be accomplished by using a variable area nozzle to mechanically reduce the area of the hot stream final nozzle. This causes the speed of the LP turbine and its associated compressor spool to be reduced, producing a corresponding reduction in fan and turbine noise levels. However, the velocity of the hot stream will increase, producing a corresponding rise in exhaust jet noise. If the final nozzle area is reduced until the noise level of the fan, turbine and exhaust are of the same order, the optimum mean noise level for the engine will have been achieved. This normally occurs when the area of the hot stream final nozzle is reduced by approx. 50%. At the optimum nozzle area, the noise radiated towards the ground can be further reduced by a change in the geometrical shape of the nozzle.
DEPLETION MODE MOSFET: In the depletion-mode type, charge carriers are present in the channel at "Zero" gate bias and the device is, therefore, conducting. The application of
are retail investors or traders permitted to naked short a stock? who is permitted to naked short a stock assuming there has been no suspension of this practice and following the f
What is Trial Balance? All business periodically tabulate the charge and credit worthiness stability separately in a declaration to see whether the complete of charge account b
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
Low pressure turbine clearance control valve: At take-off and low altitude the valve is in its normal closed position allowing cooling airflow to the core compartment. When an
Hi, I require a service which involves finite element modelling on commercial software package "ABAQUS". I am personally not sure how to model this on ABAQUS and thats why I have
INVALIDATION OF CERTIFICATE OF AIRWORTHINESS Listed below are the four major reasons why a Certificate of Airworthiness could become invalid. There may be other specific reason
Means of escape - place of safety: The means of escape in a building are often supplemented by a fire warning system that may or may not include automatic detection, depending
A key part of the course is the computer laboratories which will use a package for simulating flow around aerofoils developed by Patrick Hanley . A course licence has been purchase
Q. Explain the compositional defects. Ans. Compositional Defect: This defect due to (a) Alloying an element to original crystal. (b) Impuring atom during origi
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd