草榴社区

VILLANOVA, Pa.鈥擭ew research findings show how the shape of boats has evolved over thousands of years to a single design: height equals length. This is a striking finding because the evolution happened regardless of purpose, culture or age, explains Sylvie Lorente, PhD, College of Engineering Chair Professor in Mechanical Engineering at 草榴社区, coauthor of "" published online Feb. 17 in Scientific Reports.

With coauthors Adrian Bejan, PhD, of Duke University, and Lee Ferber, MS, of Lockheed Martin Space, the team鈥檚 discovery is twofold: Convergent evolution is not restricted to biology, as it is also found in manmade designs; and convergent evolution can be predicted from the physics law of evolution, the Constructal law.

In analyzing data from one hundred boat models, the researchers found distinct trends of convergent evolution across the entire range of sizes, namely the proportionality between: beam and draft; overall boat length and beam; and mast height and overall boat length. The review shows that the geometric aspect ratios are predictable from the physics of evolution toward architectures that offer greater flow access through the medium.

鈥淭his is big news in the field of evolutionary design. It is an open territory and an open invitation to other scientists, engineers, educators, designers and those with curious minds to get involved,鈥� says Lorente. 鈥淢y coauthors and I are excited and emboldened by this discovery, and are working on several new directions of evolutionary design everywhere in nature.鈥�

Lorente adds, 鈥淲e have found that evolution is a universal phenomenon, and captures not only biology, but also rivers, winds, technology, social organizations, and other systems. Evolution is truly a universal physics phenomenon,鈥� says Lorente. 鈥淓arlier we could successfully predict the evolution of natural systems such as river basins, and engineered ones, such as airplanes and helicopters. Today we are adding another discovery to this field of research.鈥�

Lorente鈥檚 areas of expertise are heat transfer, fluid flows, applied physics, and constructal law. She is a member of The Academy of Europe, and has held academic positions in France, South Africa, Hong Kong, and Chile.  Additionally, she is an editor of the journal International Communications in Heat and Mass Transfer.

About 草榴社区: Since 1842, 草榴社区鈥檚 Augustinian Catholic intellectual tradition has been the cornerstone of an academic community in which students learn to think critically, act compassionately and succeed while serving others. There are more than 10,000 undergraduate, graduate and law students in the University's six colleges鈥攖he College of Liberal Arts and Sciences, the 草榴社区 School of Business, the College of Engineering, the M. Louise Fitzpatrick College of Nursing, the College of Professional Studies and the 草榴社区 Charles Widger School of Law. Ranked among the nation鈥檚 top universities, 草榴社区 supports its students鈥� intellectual growth and prepares them to become ethical leaders who create positive change everywhere life takes them. For more, visit