Numerical study of enhancement of regenerative cooling using ribs - AIAA 2013-3996

Hossain, J and Tran, LV and Carpenter, C and Wang, W and Verma, SB and Kapat, JS (2013) Numerical study of enhancement of regenerative cooling using ribs - AIAA 2013-3996. In: 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 14-17 Jul 2013, San Jose, CA, USA.

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Abstract

Advancements in liquid propellant rocket engines (LPRE) are requiring higher thermal loads for long duration times. Regenerative cooling has been shown to be a highly effective cooling technique for LPRE. To authors’ knowledge, there have not been any previous work published that explores the use of turbulators in regenerative cooling channels for LPRE application. In the present study, regenerative cooling of a high performance engine is modeled numerically to explore the effects of introducing turbulence inducing structures to the coolant passages. The addition of longitudinal ribs at critical locations within the coolant channel have shown to reduce the maximum temperature experienced by the nozzle casing by 32K with a less than 1% pressure rise compared to the conventional design. The addition of ribs is observed to provide a relatively uniform increase in the local heat transfer on the coolant channel surface.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright to this article belongs to M/s. AIAA
Uncontrolled Keywords: liquid propellant rocket engines (LPRE);Longitudinal ribs; Combustion chamber;Cooling channels
Subjects: AERONAUTICS > Aeronautics (General)
AERONAUTICS > Aerodynamics
AERONAUTICS > Aircraft Propulsion and Power
Depositing User: Ms. Alphones Mary
Date Deposited: 27 Jan 2014 06:08
Last Modified: 14 Aug 2015 04:50
URI: http://nal-ir.nal.res.in/id/eprint/11914

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