Critique my animated jet engine illustrations
06-22-2014, 09:35 PM
#11
Gets Weekends Off
Joined APC: Jan 2013
Posts: 834
Agree, and also called a Condi nozzle (engineering also refers to the device as a convergent/divergent duct, hence Condi...) If you want to go real old school, a Laval nozzle after the guy who invented it... [BTW, yes I was joking with the original post...]
06-23-2014, 12:25 PM
#13
Eats shoots and leaves...
Joined APC: Apr 2007
Position: Didactic Synthetic Aviation Experience Provider
Posts: 849
Nicely done. The one thing that struck me is the statement "Much of the turbine power is used to turn the fan while a smaller percentage powers the compressor(s)."
If I recall correctly from my turbine theory (and I may not), the vast amount of energy extracted from the exhaust stream is used to drive the high pressure compressor spool. The high pressure turbines extract so much energy from the gas stream that much less is available for the low pressure/fan sections, hence why there are typically more turbine stages on the low pressure sections; it takes more stages to extract the necessary energy from the lower temperature and pressure streams at that point.
If I recall correctly from my turbine theory (and I may not), the vast amount of energy extracted from the exhaust stream is used to drive the high pressure compressor spool. The high pressure turbines extract so much energy from the gas stream that much less is available for the low pressure/fan sections, hence why there are typically more turbine stages on the low pressure sections; it takes more stages to extract the necessary energy from the lower temperature and pressure streams at that point.
06-23-2014, 08:34 PM
#14
Banned
Joined APC: Mar 2009
Posts: 1,822
If you want to take the engine w/burner (looks like a F100 core) a step further, add a convergent nozzle to illustrate that adding one to a divergent nozzle allows the airflow "squirt" out even faster giving those shock diamonds in the burner flame.
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