Fu, J.; Wang, J.; Wu, J.; Xu, K.; Tian, S. Investigation of the Influence of Wake Field Characteristic Structures on Downstream Targets Using the POD Method. Aerospace2023, 10, 824.
Fu, J.; Wang, J.; Wu, J.; Xu, K.; Tian, S. Investigation of the Influence of Wake Field Characteristic Structures on Downstream Targets Using the POD Method. Aerospace 2023, 10, 824.
Fu, J.; Wang, J.; Wu, J.; Xu, K.; Tian, S. Investigation of the Influence of Wake Field Characteristic Structures on Downstream Targets Using the POD Method. Aerospace2023, 10, 824.
Fu, J.; Wang, J.; Wu, J.; Xu, K.; Tian, S. Investigation of the Influence of Wake Field Characteristic Structures on Downstream Targets Using the POD Method. Aerospace 2023, 10, 824.
Abstract
This research delves into the impact of complex low-speed wake flow structures on the aerodynamic characteristics of objects downstream. It employs the proper orthogonal decomposition (POD) method and the domain precursor simulation method to compare traditional methods and validate this approach. The study generates several flow structures of parallel dual-cylinder wakes with different scales and spacing. The variations in the aerodynamic coefficient of three downstream objects at various times passing through wakes of varying scales are appropriately compared and analyzed. The study establishes that the wake with a cylinder spacing of G=1.5 has a more compact and concentrated modal structure than that with a cylinder spacing of G=0.35. Smaller objects are more responsive to the wake flow structure with a spacing of G=1.5, whereas larger objects respond more to the flow structure with a spacing of G=0.35. The achieved results also reveal that the aerodynamic force coefficients of objects passing through the wakefield at different times are closely related to the temporal characteristics of the wake flow structure with different scales.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
