Flow behaviour assessment of Smokey SAM rocket prototype

Abdullah, Nur Azam and Ismail, Nor Izzuddin and Ismail, Izham Izzat and Azami, Muhammad Hanafi and Nordin, Norhuda Hidayah and Sukindar, Nor Aiman and Abidin, Zulkifli Zainal and Abu Bakar, Ahmad Joahari and Dani, Noriza (2021) Flow behaviour assessment of Smokey SAM rocket prototype. CFD Letters, 13 (9). pp. 42-56. ISSN 2180-1363

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Abstract

This paper presents an aerodynamic assessment on the "Smokey Sam Prototype (TRL-6) Start (X)". Initially, the rocket prototype was designed using OpenRocket open source software, where all of the user's design requirements and objectives are considered. The TRL-6 Smokey Sam Star (X) is expected to fly within 400 m with the operating Mach 0.2, as comparable to US GTR-18A. This research evaluates the aerodynamics performance of the design Smokey Sam prototype rocket using a computational fluid dynamics (CFD) approach. For instance, the CFD study assessed the flight performance and stability once launched, such as lift coefficient, drag coefficient and pitching moment. This research employs K-omega (k-ω) model to express the turbulent properties of the flow. The actual pressure distribution was compared with the conventional rocket material's exact pressure distribution to inspect the best rocket material to sustain the best strength to weight ratio at high-speed trajectory operation. Several observations were made into the modelling process, such as surrounding velocity and pressure. It is found that the flight is in stable mode since the obtained pitching moments are almost zero at all assessed speeds.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Smokey-SAM; aerodynamic; CFD; flight performance; rocket trajectory
Subjects:	T Technology > T Technology (General) > T351 Mechanical drawing. Engineering graphics T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ170 Mechanics applied to machinery. Dynamics T Technology > TJ Mechanical engineering and machinery > TJ181 Mechanical movements T Technology > TJ Mechanical engineering and machinery > TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General) U Military Science > U Military Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr. Nur Azam Abdullah
Date Deposited:	04 Oct 2021 11:30
Last Modified:	01 Dec 2021 09:12
URI:	http://irep.iium.edu.my/id/eprint/92705

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