Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Assignment 5-1-2

Principles of Gas Turbine Operation Review

QuestionAnswer
1. Describe the relationship between pressure and velocity in a closed system Together they make up total pressure
2. How does subsonic airflow react through a convergent opening? A divergent opening? Convergent: velocity increase and pressure decreases. Divergent: velocity decreases and pressure increase.
3. How does supersonic airflow react through a convergent opening? A divergent opening? Convergent: velocity decrease and pressure increase. Divergent: velocity increases and pressure decreases.
4. What happens to the airflow as it passes through a nozzle? A diffuser? Nozzle: velocity increases and pressure decreases. Diffuser: velocity decreases and pressure increases.
5. What are the three sections of a gas generator? Compressor, burner, turbine.
6. How does a gas turbine engine produce thrust? By rapidly compressing, heating and accelerating a large (mass) of air and fuel?
7. What cycle explains the movement of air through a gas generator? Brayton cycle. Suck, Squeeze, Bang, Blow
8. What happens to the velocity of the gasses as they pass through the compressor section? Compressor: Remains fairly constant. Burner and turbine: increases
9. What is gross thrust? Thrust measured at exhaust at standard day conditions 29.92 and 15 decrease celcios.
10. What is net thrust? Thrust measured under normal flight conditions.
11. When are gross thrust and net thrust equal? When aircraft is in static position and standard day conditions.
12. What affects the density of the air mass? Temperature, pressure, and altitude.
13. What happens to thrust when air density decrease? Thrust decreases.
14. What happens to thrust when air temperature increase? Thrust decreases.
15. What happens to thrust when air pressure decrease? Thrust decrease.
16. What is the relationship between pressure and temperature as altitude increase? Temperature and pressure decrease with an over all decrease in thrust.
17. What is the optimum altitude and why? Approximately 36,00 feet and temperature remains isothermal.
18. How does airspeed and the ram effect changes the amount of thrust produced at subsonic and supersonic speeds? Airspeed increase without ram effect cause thrust to decrease. Airspeed increase with ram effect causes thrust to remain relatively constant at subsonic speeds and increased greatly at supersonic speeds.
Created by: Rudyrm
Popular Engineering sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards