一种用于喷流干扰试验的异型喷管设计方法
By optimizing the design of irregular nozzles through numerical simulation and aerodynamic interference factor calculation, the problem of machining the nozzle inlet surface of complex-shaped aircraft was solved, and the accuracy and consistency of jet interference tests were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ACAD OF AEROSPACE AERODYNAMICS
- Filing Date
- 2023-03-09
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, when designing the nozzle layout of complex-shaped aircraft, it is difficult to achieve the machining of the nozzle inlet surface, resulting in the jet flow interference effect being inconsistent with the actual jet flow interference effect of the aircraft, and there is a lack of effective design methods for irregular nozzles.
A non-standard nozzle was designed using numerical simulation. By comparing the jet flow field and thrust of a reference nozzle with that of an actual nozzle, and by calculating the aerodynamic interference factor, the inlet profile was optimized to meet the design requirements and ensure the accuracy of the jet interference test.
The nozzle of the jet interference test model for complex-shaped aircraft was accurately designed, and the jet interference effect was consistent with the actual effect, thus improving the accuracy and reliability of the jet interference test.
Smart Images
Figure CN116305560B_ABST