Dynamic Fluid-Structure Interaction Analysis of Propeller Aircraft Wing

Intizar Ali, Abdul Hameed Memon, M. Tarique Bhatti, Dileep Kumar, Ishfaque Ali Qazi, Sajjad Banghwar


During flight, aircraft wing is subjected to time dependent loads resulting in wing deformation and oscillation which is a challenge to its structural design as well as safety.  At present, structural integrity and wing performance are mostly evaluated on the basis of static loading only. While dynamic loading has got minor attention due to this research work analyses structural and aerodynamic behavior of rectangular aircraft wing under time varying conditions. The effects of structural non-linearity were also taken into account. Computational Fluid Dynamics (CFD) and Computational Structural Dynamics (CSD) codes were coupled to predict aerodynamic performance of deformable wing structure. To analyze and compare the performance of rigid and flexible Aluminum alloy 7075 T6 wing were simulated. Research results reveal that there is 5.64% decrease in Lift-to-Drag ratio by considering wing as flexible structure. The analysis of wing structural behavior by varying fluid forces showed that wing behavior is highly non-linear in nature; therefore dynamic loading conditions are highly important to consider.


Fluid-Structure Interaction; Propeller aircraft; Computational Fluid Dynamics; Computational Structural Dynamics.

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