Zhi-Hui WANG, Hui-Jun GAO

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST 2024- 0052

Real surface of hypersonic vehicles could be rough rather than smooth at different scales, and non-equilibrium heat and mass transfer to rough walls is a critical phenomenon that needs to be evaluated in design of the thermal protection system. Take the wavy wall as a typical example, this paper analyzes the heat and mass transfer performance of a surface with microscale roughness by using the asymptotic methods. Analytical results for the local heat flux and chemical reaction rate increments are derived for different non-equilibrium degrees and wave steepnesses, and the corresponding scaling laws are discussed and validate by data from the direct simulation Monte Carlo method. This theoretical study provides a convenient and practical method to evaluate and correct the chemical reaction–diffusion performance of rough walls, and is potentially useful for development of new numerical and experimental techniques in dealing with the complex boundaries in engineering problems.

Read the full paper here

In Categories: 1.Events, HiSST 2024, Hypersonic Fundamentals and History
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.