biostudies-literaturePeng LBeijing Municipal Natural Science FoundationNational Natural Science Foundation of China795063https://www.ebi.ac.uk/biostudies/studies/S-EPMC8966397biostudies-literatureUnknown10This study presents a detailed analysis of dragonflies' climbing flight by integratinghigh-speed photogrammetry, three-dimensional reconstruction, and computational fluid dynamics. In this study, a dragonfly's climbing flight is captured by two high-speed cameras with orthogonal optical axes. Through feature point matching and three-dimensional reconstruction, the body kinematics and wing kinematics of 22 dragonflies in climbing flight are accurately captured. Experimental results show that the climbing angles (<i>η</i>) are distributed from 10° to 80° and are concentrated within two ranges, 60°-70° (36%) and 20°-30° (32%), which are defined as large angle climb (LAC) and small angle climb (SAC), respectively. In order to study the aerodynamic mechanism of the climbing flight based on the Frontiers in bioengineering and biotechnologyKinematics and Aerodynamics of Dragonflies (<i>Pantala flavescens</i>, Libellulidae) in Climbing Flight.PMC896639752006002 51976005 51636001Pan TZheng MSong SLi QPeng LSu GfalseKinematics and Aerodynamics of Dragonflies (<i>Pantala flavescens</i>, Libellulidae) in Climbing Flight.This study presents a detailed analysis of dragonflies' climbing flight by integratinghigh-speed photogrammetry, three-dimensional reconstruction, and computational fluid dynamics. In this study, a dragonfly's climbing flight is captured by two high-speed cameras with orthogonal optical axes. Through feature point matching and three-dimensional reconstruction, the body kinematics and wing kinematics of 22 dragonflies in climbing flight are accurately captured. Experimental results show that the climbing angles (<i>η</i>) are distributed from 10° to 80° and are concentrated within two ranges, 60°-70° (36%) and 20°-30° (32%), which are defined as large angle climb (LAC) and small angle climb (SAC), respectively. In order to study the aerodynamic mechanism of the climbing flight based on the 2022-01-01T00:00:00Z20222025-04-04T07:35:06.507Z2025-04-04T07:35:06.507ZS-EPMC89663973537231110.3389/fbioe.2022.795063