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Engine panel seals for hypersonic engine

Bruce M. Steinetz, Rajakkannu Mutharasan

2026enhypersonic enginespanel sealshigh temperatureleakage flowceramic sealsbraided seals

Abstract

Language:

A critical mechanical system in advanced hypersonic engines is the panel-edge seal system that seals gaps between the articulating horizontal engine panels and the adjacent engine splitter walls. Significant advancements in seal technology are required to meet the extreme demands placed on the seals, including the simultaneous requirements of low leakage, conformable, high temperature, high pressure, sliding operation. In this investigation, the seal concept design and development of two new seal classes that show promise of meeting these demands will be presented. These seals include the ceramic wafer seal and the braided ceramic rope seal. The paper presents key elements of leakage flow models for each of these seal types. Flow models such as these help designers to predict performance-robbing parasitic losses past the seals, and estimate purge coolant flow rates. Comparisons are made between measured and predicted leakage rates over a wide range of engine simulated temperatures and pressures, showing good agreement.

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Cite This Work

@article{66af3494-0fe5-4f15-895f-3ad97ab6aeea,
  title={Engine panel seals for hypersonic engine},
  author={Bruce M. Steinetz and Rajakkannu Mutharasan},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Engine panel seals for hypersonic engine
AU  - Bruce M. Steinetz
AU  - Rajakkannu Mutharasan
PY  - 2026
LA  - en
ER  -

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