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A rocket engine design expert system (Document No: 19910007816)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Davidian, Kenneth J. |
| Copyright Year | 1989 |
| Description | The overall structure and capabilities of an expert system designed to evaluate rocket engine performance are described. The expert system incorporates a JANNAF standard reference computer code to determine rocket engine performance and a state of the art finite element computer code to calculate the interactions between propellant injection, energy release in the combustion chamber, and regenerative cooling heat transfer. Rule-of-thumb heuristics were incorporated for the H2-O2 coaxial injector design, including a minimum gap size constraint on the total number of injector elements. One dimensional equilibrium chemistry was used in the energy release analysis of the combustion chamber. A 3-D conduction and/or 1-D advection analysis is used to predict heat transfer and coolant channel wall temperature distributions, in addition to coolant temperature and pressure drop. Inputting values to describe the geometry and state properties of the entire system is done directly from the computer keyboard. Graphical display of all output results from the computer code analyses is facilitated by menu selection of up to five dependent variables per plot. |
| File Size | 2524317 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910007816 |
| Archival Resource Key | ark:/13960/t2x39pm8c |
| Language | English |
| Publisher Date | 1989-10-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Temperature Distribution Heuristic Methods Liquid Rocket Propellants Regenerative Cooling Computer Programs Wall Temperature Finite Element Method Advection Hydrogen Oxygen Engines Fuel Injection Combustion Chambers Rocket Engine Design Expert Systems Heat Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
