Modelling the effect of changing design fineness ratio of an airship on its aerodynamic lift and drag performance

AEROS Conference 2017

Jalasabri, J.^1 ; Romli, F.I.^1 ; Harmin, M.Y.^1

Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor

43400, Malaysia^1

关键词: Aero-dynamic performance;    Aerodynamic lift;    Computational fluid dynamics simulations;    Computer aided design models;    Lift and drag coefficients;    MINITAB;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/270/1/012002/pdf
DOI  :  10.1088/1757-899X/270/1/012002

来源: IOP

【 摘 要 】

In developing successful airship designs, it is important to fully understand the effect of the design on the performance of the airship. The aim of this research work is to establish the trend for effects of design fineness ratio of an airship towards its aerodynamic performance. An approximate computer-aided design (CAD) model of the Atlant-100 airship is constructed using CATIA software and it is applied in the computational fluid dynamics (CFD) simulation analysis using Star-CCM+ software. In total, 36 simulation runs are executed with different combinations of values for design fineness ratio, altitude and velocity. The obtained simulation results are analyzed using MINITAB to capture the effects relationship on lift and drag coefficients. Based on the results, it is concluded that the design fineness ratio does have a significant impact on the generated aerodynamic lift and drag forces on the airship.