Abdullah, Nur Azam and Ismail, Nor Izzuddin and Azami, Muhammad Hanafi and Nordin, Norhuda Hidayah and Sukindar, Nor Aiman (2021) Aerodynamic assessment and development of Smokey SAM Prototype (TRL-6). In: 5th International Conference on Mechanical, Automotive and Aerospace Engineering 2021 (ICMAAE'21), 22 - 23 June 2021, Virtual. (Unpublished)
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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 by 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 number 0.2 as a 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. The aerodynamics analyses were started with an initial speed of 25 m/s, and the procedures were repeated for 40 m/s and 54.6m/s. For instance, the CFD study assessed the flight performance and stability once launched, such as lift coefficient, drag coefficient and pitching moment. The turbulence model is employing K-omega (k-ω) model to express turbulent properties of flow to a reckoning for history effects like convection and diffusion of turbulent energy. 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 speed. For the flight trajectory validation, the model was printed using a 3D printer and tested experimentally by launching it into the air.
| Item Type: | Conference or Workshop Item (Slide Presentation) |
|---|---|
| Uncontrolled Keywords: | Smokey SAM, aerodynamic, CFD, flight performance, trajectory |
| Subjects: | 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) T Technology > TJ Mechanical engineering and machinery > TJ227 Machine design and drawing U Military Science > U Military Science (General) |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering > Department of Mechanical Engineering |
| Depositing User: | Dr. Nur Azam Abdullah |
| Date Deposited: | 12 Oct 2021 18:30 |
| Last Modified: | 12 Oct 2021 18:30 |
| URI: | http://irep.iium.edu.my/id/eprint/92762 |
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