Aerospace Knowledge and Technology Journal

Aerospace Knowledge and Technology Journal

Calculating the aerothermodynamics heating and radiation heat flux of ablative noses by using the combined of CTCA results, RN number & reference enthalpy method of flat plate

Document Type : Research Paper

Authors
Saadolah Rostami 1
jamasb pirkandi 2
Maherdad Malekzadie deerin 3
1 Department of Mechanic- Energy Conversion Engineering, Azad University, West Tehran, Iran.
2 Associate Professor, Faculty of Aerospace, Malek Ashtar University of Technology, Iran
3 Department of Mechanic Engineering, Azad University, West Tehran, Iran.
Abstract
The Validated CTCA Code is one of the effective tools for calculating the aerothermodynamics and radiation heating applied to the wall of the hypersonic noses. Also, the dimensionless RN number is to determine the limit of aerothermodynamics and radiation heating of the mentioned noses and the reference enthalpy method is for calculating the aerothermodynamics heating of a flat plate at different angles of attack. Due to the high solution time, the users of this code do not think it is logical to use it for preliminary design purposes. so researchers always have been seek to develop an analytical relationship to calculate the heat flux of these noses, with the same accuracy compared to numerical methods. the purpose of this research is to compile explicit and analytical or EECAR_ AN equations for the direct calculation of the heat flux of the hypersonic vehicles over time, using a combination of the results of CTCA code, RN number and the flat plate reference enthalpy method in the platform of CAMSOL software, it is called CTCA+ Algorithm. The results showed that the maximum amount of error for calculating the total heat flux compared to CTCA code was less than 7%.
Keywords
CTCA code, RN number, EECAR_AN Equations, CTCA+ Algorithm, CAMSOL Software, Reference Enthalpy Method, Flight Tests
Subjects
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Aerospace Knowledge and Technology Journal
Volume 14, Issue 1
May 2025
Pages 233-247