Computational analysis of aerodynamic characteristics for wing in ground effect craft in lateral stability

4th AEROTECH- Innovation in Aerospace Engineering and Technology

航空航天工程

Amir, M.A.U.^1,2 ; Maimun, A.^2 ; Mat, S.^3 ; Saad, M.R.^1

Faculty of Science and Defense Technology, Universiti Pertahanan Nasional Malaysia, Malaysia^1

Marine Technology Centre, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia^2

Aeronautical Laboratories, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia^3

关键词: Aerodynamic characteristics;    Computational analysis;    Computational studies;    Lateral stability;    Safety aspects;    Stability and control;    Wing in ground effect;    Wing In Ground Effect craft;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/152/1/012003/pdf
DOI  :  10.1088/1757-899X/152/1/012003

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Wing in-ground effect (WIG) crafts are becoming promising transportation over the last decade. However, stability and control problems faced by the WIG in earlier development are still unresolved. This paper objectively investigates the lateral stability of wing in ground effect craft. The wing encompasses a winglet at the end of the wingtip. Lift, drag and pressure were measured with the respect of the heeling angle of 100, 150and 200, respectively, with the h/c of 0.3. Initial results from the computational studies show that the ground effect pressure distributions provide a natural righting moment when the WIG craft heels near ground. This initial result provides an insight to understand the current state of knowledge of stability for WIG, particularly on transverse or lateral stability of WIG where it plays important roles in the safety aspect. It is crucial to understand the stability and its component in order to avoid any unforeseen accident. This paper discusses the results obtained from the numerical studies.