孔子鸟三维复原与飞行性能数值模拟初探
Three-Dimensional Reconstruction and Numerical Simulation of Flight Performance of Confuciusornis
DOI: 10.12677/OJNS.2019.76069, PDF,  被引量    科研立项经费支持
作者: 王乐姣, 安晓晨：临沂大学生命科学学院，山东 临沂；郭 颖*, 赵 艳：临沂大学生命科学学院，山东 临沂；临沂大学地质与古生物研究所，山东 临沂；王京盈：山东大学能源与动力工程学院，山东 济南
关键词: 孔子鸟；三维复原；飞行性能；数值模拟；Confuciusornis； Three-Dimensional Reconstruction； Flight Performance； Numerical Simulation
摘要: 孔子鸟一直是古鸟类学研究的重点之一，但是关于它的实际飞行能力和运动性能，长期以来只能通过形态类比和功能推测获得，这也成为鸟类飞行起源和演化的研究中亟待解决的关键问题之一。本文以孔子鸟为研究对象，运用古生物复原技术重建孔子鸟三维结构，并通过数值模拟方法定量化计算了孔子鸟的飞行性能。结果显示：孔子鸟整体的几何形态具备空气动力学意义，当其初始的飞行速度超过4 m/s，便可以凭借一定的高度落差进行相对较长距离的滑翔运动。这一结果将为今后孔子鸟飞行能力的最终评价提供定量化的数据支持。
Abstract: Confuciusornis has always been one of the focuses of paleornithology, but the actual flight ability and movement performance of Confuciusornis have been speculated by morphological analogy and function, which has become one of the key problems hindering the study of the origin and evolution of bird flight. In this paper, the 3D structure of Confuciusornis was reconstructed by paleontology restoration technique, and the flight performance of Confuciusornis was quantitatively calculated by numerical simulation. The results showed that the geometry of Confuciusoris had aerodynamic significance. When its initial flight speed exceeded 4 m/s, it could glide for a certain distance with a certain height difference. This result will provide quantitative data supporting the final evaluation of Confuciusornis flight ability in the future.
文章引用：王乐姣, 郭颖, 安晓晨, 赵艳, 王京盈. 孔子鸟三维复原与飞行性能数值模拟初探[J]. 自然科学, 2019, 7(6): 590-595. https://doi.org/10.12677/OJNS.2019.76069

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