S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Theses (Master's Degree_기계항공공학부)
Two-Dimensional Fluid-Structure Interaction of Flapping Micro Aerial Vehicles
날갯짓 초소형 비행체의 2차원 유체-구조 연성해석
- 공과대학 기계항공공학부
- Issue Date
- 서울대학교 대학원
- Computational fluid dynamics; Fluid-structure interaction analysis; Flapping flight; Flapping micro aerial vehicles; Unsteady force generation mechanism
- 학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2016. 2. 김종암.
- In this thesis, flow around flapping micro aerial vehicles is analyzed by two-dimensional fluid-structure interaction (FSI) simulation. Flow analysis program is developed using the two-dimensional unsteady incompressible Navier-Stokes equations based on arbitrary Lagrangian-Eulerian framework, and validated with the case of a plunging flexible airfoil. Structure analysis program is developed using nonlinear co-rotational plane beam formulation and validated with cantilevered plate under tip load condition problem and plunging plate problem. Two programs are coupled with implicit coupling strategy, and Delaunay graph mapping method is adopted for dynamic grid deformation and common-refinement method for data transfer. The developed FSI program is validated with plunging flexible airfoil case. By two-dimensional FSI simulation of hovering flapping micro aerial vehicles (FMAVs), the effect of flexibility of the FMAVs' wing on aerodynamic performances is investigated in conjunction with unsteady force generation mechanisms.