التفاصيل البيبلوغرافية
| العنوان: |
Conjugate Heat Transfer Advancements and Applications in Aerospace Engine Technology. |
| المؤلفون: |
Zha, Hao, Xu, Yaqian, Tang, Zhigong, Li, Bin, Wang, Dongzhi |
| المصدر: |
Applied Sciences (2076-3417); May2024, Vol. 14 Issue 9, p3556, 18p |
| مصطلحات موضوعية: |
HEAT transfer, AEROSPACE technology, LITERATURE reviews, HEAT flux, TURBINE blades, NANOFLUIDICS |
| الشركة/الكيان: |
UNITED States. National Aeronautics & Space Administration |
| مستخلص: |
Featured Application: Provide support for temperature prediction of metal components affected by fluid–thermal coupling, such as turbines and exhaust nozzles. Over the past few decades, conjugate heat transfer (CHT) technology has been instrumental in predicting temperature fields within aerospace engines, guiding engine design with its predictive capabilities. This paper comprehensively surveys the foundational technologies of CHT and their applications in engine design, backed by an extensive literature review. A novel coupling iteration methodology, su-F-TFTB, was proposed. Following this, it introduced grid splicing technology tailored for heat flux conservation, which significantly enhances the adaptability of CHT grids. Ultimately, this study employed the self-developed Aerospace Engine Numerical Simulation (AENS v4.0.1) software to perform CHT analyses on NASA-C3X turbine blades equipped with ten radial cooling systems. A comparative analysis of pressure distributions across various density meshes was undertaken to affirm mesh independence. Furthermore, the impacts of the Spalart–Allmaras (SA) one-equation model and k–ω Shear Stress Transport (SST) two-equation model on the temperature distribution in conjugate heat transfer were investigated. The results indicated that the k–ω SST model exhibited superior performance, aligning closely with NASA experimental data. This validation confirmed the effectiveness of the software. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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