Copyright 2017 Robert Clark
In prior posts I gave some possibilities for achieving altitude compensation, [1],[2], [3], [4].The importance of this is they increase the payload both for single stage and multistage rockets.
Another possibility is illuminated by this:
Only it would use pressurize gas rather than popcorn to expand out the nozzle.
Bob Clark
REFERENCES:
1.)Altitude compensation attachments for standard rocket engines, and applications.
http://exoscientist.blogspot.com/2014/10/altitude-compensation-attachments-for.html
2.)Altitude compensation attachments for standard rocket engines, and applications, Page 2: impulse pressurization methods.
http://exoscientist.blogspot.com/2016/01/altitude-compensation-attachments-for.html
3.)Altitude compensation attachments for standard rocket engines, and applications, Page 3: stretchable metal nozzles.
http://exoscientist.blogspot.com/2016/06/altitude-compensation-attachments-for.html
4.)Altitude compensation attachments for standard rocket engines, and applications, Page 4: the double aerospike.
http://exoscientist.blogspot.com/2016/10/altitude-compensation-attachments-for.html
2 comments:
If I understand correctly, the foil would act as a nozzle skirt?
How would it handle the heat load?
It could use the fuel to provide the cooling as well as the expansion force.
Another possibility is that exhaust gas cools as it expands. Since this is envisioned as an attachment to the usual sea level nozzle, the gas would have cooled as it reaches the attachment so reduced levels of cooling would be required.
However, the attachment simply being in contact with the main nozzle would also cause it to become hot from conduction. Then we could use heat insulators between the main nozzle and the attachments to limit this heat transfer.
Bob Clark
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