 .
Liquid Rocket Engine Combustion Stabilization Devices
Rocketdyne,
Pratt & Whitney Aircraft, Princeton University, Aerojet Liquid
Rocket Company, Air Force Rocket Propulsion Laboratory, and scientists
at the NASA Lewis Research Center
Combustion
instability (oscillatory combustion) has been encountered in nearly all
rocket engine development programs. Combustion instability severely
impairs the operation of both the motor and the vehicle system, and
much effort has been directed toward solving the instability problem.
In
general, combustion instability results from a coupling of the
combustion process and the fluid dynamics of the engine system. (This
is rocket science, boys and girls!) This textbook discusses the design
of devices that are assumed to reduce coupling--combustion chamber
baffles--and devices that are assumed to increase damping--acoustic
absorbers.
Note: Sample illustrations greatly reduced
in size and resolution
Analytical
approaches to baffle design are new, and both empirical and analytical
methods are discussed. Baffle designs interact directly with injector
and combustion chamber designs, and these are also covered. The book
explains how to convert the results of analysis, observation, and test
into useful structures that will provide the desired combustion
stability over the required lifetime of the rocket engine. To this
end, the details of configuration selection, construction, thermal
control, and confirmation testing are presented.
A thick and heavy text, this NASA handbook is an excellent reference
for the experimental rocket scientist, designer, engineer, and
technician. Much of the information will also be useful to designers
of automotive racing engines and cars, racing boats, and fast aircraft.
Contents Include:
- Baffles
- Combustion chamber acoustics
- Baffle geometry, length, configuration
- Structural and mechanical design
- Material selection
- Stresses
- Attachment
- Thermal control
- Analytical basis
- Cooling methods
- Experimental evaluation
- Baffle/engine interactions
- Injector
- Combustion chamber
- Ignition
- Stable operations
- Stability rating device
- Thrust vector control (TVC)
- Absorbers
- Configuration, location, partitions
- Construction
- Chamber liners
- Slots or acoustic cavities
- Thermal control
- Acoustic damping analysis
- Analytical methods
- Experience guidelines
- Design pressure amplitude
- Bandwidth
- Hot-firing measurements
Very
hard to find, this new limited edition has been republished by the Rocket
Science Institute. It's printed with a high-resolution laser printer
(not photocopied)
on high-quality, bright-white, acid-free paper for years of reference use.
127 pages, 42 illustrations and tables, 11 x 8.5-inches in size, and quality bound. $21.85
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