Numerical Investigations on Supercritical Heat Transfer Characteristics of JP-10

Bhoir, C and Thakor, N and Jagadeesh, G and Arunan, E (2023) Numerical Investigations on Supercritical Heat Transfer Characteristics of JP-10. In: 25th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 28 May 2023through 1 June 2023, Bengaluru.

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Abstract

A numerical study on the JP-10�s heat transfer characteristics in a horizontal circular tube under supercritical conditions has been conducted to understand the heat transfer process in the Scramjet engines cooling channels with JP-10 as a coolant. This study has been carried out in turbulent flow regimes, and the Realizable k � ε model was used for turbulence modeling. The effect of pressure and the heat flux on heat transfer coefficient was analyzed. The heat transfer deterioration (HTD) phenomena were observed when inner wall reached pseudocritical temperature. Heat transfer enhancement (HTE) was also observed during this study. However, it occurred when the bulk fluid temperature was above the pseudo-critical temperature at 4 MPa and below the pseudo-critical temperature at 5 MPa, which looks unusual with property variation. The relevance of two established heat transfer empirical correlations for Nusselt number estimation has been examined. The correlation developed by Bae-kim has successfully predicted both the HTD and HTE phenomena for some cases. © 2023, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

Item Type:	Conference Poster
Publication:	25th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2023
Publisher:	American Institute of Aeronautics and Astronautics Inc, AIAA
Additional Information:	The copyright for this article belongs to American Institute of Aeronautics and Astronautics Inc, AIAA.
Keywords:	Deterioration; Heat flux; Ramjet engines; Temperature, Circular tubes; Heat transfer deterioration; Heat Transfer enhancement; Heat transfer process; Heat-transfer characteristics; Numerical investigations; Pseudo-critical temperature; Scramjet engines; Supercritical; Supercritical condition, Heat transfer coefficients
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	11 Oct 2024 13:12
Last Modified:	11 Oct 2024 13:12
URI:	http://eprints.iisc.ac.in/id/eprint/86444

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