Sonic airflow - aircraft maintenance, Other Engineering

Assignment Help:

Sonic airflow though divergent and convergent ducts

When a flow of fluid (i.e. gas) flows at sonic speed through a convergent duct a shock wave forms at the exit area of the duct - The exit area is said to be choked. The shock wave forms a restriction to the fluid and pressure will increase, temperature will increase and velocity will decrease.

735_sonic airflow.png

When a gas flow reaches sonic velocity in a convergent duct the nozzle will choke and the pressure will increase. To prevent a pressure rise that would eventually prevent a 'fluid' flow and completely choke the duct a divergent section is added making the duct convergent/divergent (Con/DI). The pressure of gas released into the divergent section of the nozzle causes the velocity of the 'fluid' to increase, pressure to decrease, and therefore temperature to decrease. Gas pressure acts on the walls of the divergent section, this pressure gives additional thrust that is known as pressure thrust.

1834_sonic airflow1.png


Related Discussions:- Sonic airflow - aircraft maintenance

Fibre optics communications, explain the fibre optic communication system w...

explain the fibre optic communication system with block diagram

Electrical ice protection systems, Electrical ice protection systems: E...

Electrical ice protection systems: Electrical ice protection systems are used on most turbo-props.  Resistance wire heater elements are embedded in rubber and cemented from the

Kalman filtering , Kalman Filtering  All of the measurements generat...

Kalman Filtering  All of the measurements generated by the seeker and the navigation system/rate gyros are noisy, and therefore need to be filtered.  The Kalman filter, a

Transistors, Transistors: The transistor can be a high or low resistanc...

Transistors: The transistor can be a high or low resistance device, hence the name, which is derived from TRANSfer resISTOR.  It is used in many switching and amplifier circ

Pov display, require help in making pov display

require help in making pov display

Case1, Flifla sells tomatoes every day in Suk al Marqazi, the downtown frui...

Flifla sells tomatoes every day in Suk al Marqazi, the downtown fruit and vegetable market. He finds that he can order tomatoes in crates of 25 kg and he is able to stock a maximum

Steamtables, How to draw diagrams for Rankine cycle

How to draw diagrams for Rankine cycle

Doble titration, object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find ...

object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find out the strenghth and normality of fas(b) using potasium permagnettetraoxide as intermidiate compound & self indicator

Metallurgy engg., why practical engineering materials are homogeneous and i...

why practical engineering materials are homogeneous and isotropic?

Forgin exchange, The following exchange rates are available to you. (You ca...

The following exchange rates are available to you. (You can buy or sell at the stated rates.) Mt. Fuji Bank ¥85.00/$ Mt. Rushmore Bank SF1.356/$ Mt. Blanc Bank ¥64.74/SF Assume t

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