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High-temperature earth-storable propellant acoustic cavity technology (1974)

Oberg, C. L. ; Falk, A. Y. ; Hines, W. S.

In: CASI

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Publication Date: 2019-06-27

Description: Design criteria, methods and data, were developed to permit effective design of acoustic cavities for use in regeneratively cooled OME-type engines. This information was developed experimentally from two series of motor firings with high-temperature fuel during which the engine stability was evaluated under various conditions and with various cavity configurations. Supplementary analyses and acoustic model testing were used to aid cavity design and interpretation of results. Results from this program clearly indicate that dynamic stability in regeneratively cooled OME-type engines can be ensured through the use of acoustic cavities. Moreover, multiple modes of instability were successfully suppressed with the cavity.

Keywords: PROPELLANTS AND FUELS

Type: NASA-CR-141688 , R-9401

Format: application/pdf

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