{"title":"基于构造法的编队飞行设计。","authors":"Samuel A. Savitt","doi":"10.1016/j.biosystems.2025.105482","DOIUrl":null,"url":null,"abstract":"<div><div>Formation fliers utilize varying designs to save energy by flying in the wake of preceding fliers, reducing induced drag and boosting lift. The Constructal Law is applied to this formation flight problem to analyze how the distribution of drag among fliers in a V-formation design is related to the optimal formation flight configuration. An analytical model that predicts this optimal configuration is developed and expressed in terms of the fundamental formation parameters (velocity, number of fliers, wingspan, weight, and air density). Results show that there is not a fixed optimal V-formation design for all formation systems. Rather, the optimal configuration is evolutionary: it constantly adapts as parameters change to maximize access to energy savings. Trends predicted by the model are substantiated by observations from nature. In line with Constructal Law predictions, induced drag along the optimal V-formation configuration is distributed as uniformly as possible among fliers.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"254 ","pages":"Article 105482"},"PeriodicalIF":1.9000,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Formation flight design via Constructal Law\",\"authors\":\"Samuel A. Savitt\",\"doi\":\"10.1016/j.biosystems.2025.105482\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Formation fliers utilize varying designs to save energy by flying in the wake of preceding fliers, reducing induced drag and boosting lift. The Constructal Law is applied to this formation flight problem to analyze how the distribution of drag among fliers in a V-formation design is related to the optimal formation flight configuration. An analytical model that predicts this optimal configuration is developed and expressed in terms of the fundamental formation parameters (velocity, number of fliers, wingspan, weight, and air density). Results show that there is not a fixed optimal V-formation design for all formation systems. Rather, the optimal configuration is evolutionary: it constantly adapts as parameters change to maximize access to energy savings. Trends predicted by the model are substantiated by observations from nature. In line with Constructal Law predictions, induced drag along the optimal V-formation configuration is distributed as uniformly as possible among fliers.</div></div>\",\"PeriodicalId\":50730,\"journal\":{\"name\":\"Biosystems\",\"volume\":\"254 \",\"pages\":\"Article 105482\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-05-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biosystems\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0303264725000929\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biosystems","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0303264725000929","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
Formation fliers utilize varying designs to save energy by flying in the wake of preceding fliers, reducing induced drag and boosting lift. The Constructal Law is applied to this formation flight problem to analyze how the distribution of drag among fliers in a V-formation design is related to the optimal formation flight configuration. An analytical model that predicts this optimal configuration is developed and expressed in terms of the fundamental formation parameters (velocity, number of fliers, wingspan, weight, and air density). Results show that there is not a fixed optimal V-formation design for all formation systems. Rather, the optimal configuration is evolutionary: it constantly adapts as parameters change to maximize access to energy savings. Trends predicted by the model are substantiated by observations from nature. In line with Constructal Law predictions, induced drag along the optimal V-formation configuration is distributed as uniformly as possible among fliers.
期刊介绍:
BioSystems encourages experimental, computational, and theoretical articles that link biology, evolutionary thinking, and the information processing sciences. The link areas form a circle that encompasses the fundamental nature of biological information processing, computational modeling of complex biological systems, evolutionary models of computation, the application of biological principles to the design of novel computing systems, and the use of biomolecular materials to synthesize artificial systems that capture essential principles of natural biological information processing.