Jurnal Teknologi Dirgantara
Vol 8, No.2 Desember (2010)

NUMERICAL SIMULATION OF UNSTEADY VISCOUS FLOW AROUND AIRSHIP USING VORTEX METHOD

- Subagyo (UPT-LAGG, Badan Pengkajian dan Penerapan Teknologi)

Article Info

Publish Date
12 Apr 2011

Abstract

The grid-less Vortex Method has been developed as the tool for the analysis of two-dimensional (2D) and three-dimensional (3D) complex flows in various engineering applications. In the present study, unsteady flows around a slightly complex geometry (bare hull of an airship and body of an airship) at angles incidence α= 10°, 20°, and 30° were investigated by using the vortex method for a high Reynolds number, Re = 3.9105. The flow-pattern, velocity field, coefficient of pressure distribution on the bare hull and the surface of the airship body, and the aerodynamic coefficient were obtained from numerical calculations. A comparison of the numerical results with the experimental observations showed a good agreement.keywords: Vortex method, Unsteady flow, Aerodynamic coefficient

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Journal Info
Jurnal Teknologi Dirgantara
Website

Abbrev

jurnal_tekgan

Publisher

Lembaga Penerbangan dan Antariksa Nasional

Subject

Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Mechanical Engineering Physics

Description

Jurnal Teknologi Dirgantara (Journal of Aerospace Technology) is an Indonesian accredited scientific publication that covers topics of Rocket, satellite, and aeronautics technology, as well as a spin-off from aerospace technology, such as aerodynamics, astronautics, aerospace structure, power and ...