On Wed, 06 Jun 2007 13:19:36 GMT, Ron Hardin
wrote:

Brian Whatcott wrote:

The compressor in front provides a wall of air as dense as 6 times
standard pressure - so the expanding hot air behind it finds it
energetically advantageous to go backwards, which reinforces the wall
of air

Brian Whatcott Altus OK

But that back pressure slows the turbine, just as surely as going through the blades
backwards would. Equivalently, the compressor is doing more work the more you ignite
the fuel. What keeps the turbine from slowing to a stop and then everything just
blowing out both front and back?

If I arrange to share the motive power between compressing input air,
and accelerating exhaust air, the compressor is a load. and
accelerating the exhaust is a load.
The compressor does not normally stop if I supply energy as fuel.
And the exhaust does not normally stop if I keep supplying fuel.

Brian Whatcott Altus OK