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Air-inlet adjustable ramjet engine integrated runner optimal design method

A ramjet engine and optimization design technology, applied in computing, sustainable transportation, special data processing applications, etc., can solve problems such as not raised, and achieve the effect of reducing fuel consumption, improving performance prediction accuracy and design efficiency

Inactive Publication Date: 2018-10-30
AERO ENGINE ACAD OF CHINA
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Problems solved by technology

[0004] Although the integrated optimization design method using MDO has made significant progress and has been partially applied in the field of scramjet engines, in the design of ramjet engines, in order to meet the flight requirements of hypersonic vehicles with a wide Mach number, advanced The adjustable air intake design involves the design of variable flow passages. At present, researchers have not yet proposed a method for the integrated optimization design of adjustable intake air. Therefore, it is of high engineering practical value to carry out research on the design method of ramjet with adjustable intake air.

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  • Air-inlet adjustable ramjet engine integrated runner optimal design method

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[0039] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only parts related to the present disclosure are shown in the drawings.

[0040] It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.

[0041]The integrated flow path optimization design method of adjustable intake ramjet, the flow path includes the first-stage sloping plate 1 of the outer compression section, the second-stage sloping plate 2 of the outer compression section, the third-stage sloping plate 3 of ...

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Abstract

The invention provides an air-inlet adjustable ramjet engine integrated runner optimal design method. Under design point and non-design point states, the air-inlet adjustable design, inlet design, combustion chamber design and exhaust nozzle design are performed by taking an aim of improving the thrust performance under the high-Mach number condition and the starting performance under low-Mach number condition of the engine, and the fast meshing algorithm, a fluid dynamics computing method, a parallel algorithm and an overall optimal algorithm are coupled to finally form an integrated runner optimal design method.

Description

technical field [0001] The present disclosure relates to the field of ramjet flow path design, in particular to a method for optimal design of an integrated flow path of a ramjet with adjustable intake air. Background technique [0002] The power of hypersonic vehicles is the commanding height of the aerospace field in the 21st century, and it is regarded as the third revolution in the world's aviation history after propeller propulsion and jet propulsion. Turbine-based combined cycle power (TBCC) is a hypersonic power system formed scientifically by integrating a wide speed range, high-performance ramjet and other power forms based on a turbine engine. It has high specific impulse, good safety, large payload, With the advantages of horizontal takeoff and landing and repeated use, it is the most ideal power system for hypersonic aircraft. The ramjet is a key component of the TBCC engine. During the design process, on the basis of fully considering the matching between the e...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15Y02T90/00
Inventor 王爱峰李建榕贾真苗辉
Owner AERO ENGINE ACAD OF CHINA
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