International Communications in Heat and Mass Transfer 149 (2023) 107162

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International Communications in Heat and Mass Transfer
journal homepage: www.elsevier.com/locate/ichmt

Professor Adrian Bejan on his 75th birthday

Adrian Bejan's remarkable career is a continuous stream of originalideas that earn him recognition time and again. Detailed assessments of
his life and scientific contributions were conducted in 2008 [1] and in
2018 [2]. Most recently, he was honored with the Humboldt ResearchAward for Lifetime Achievement, Turkish Academy of Sciences Prize(2019), Lifetime Achievement Award (IAGE 2021), Kimberly-Clark
Distinguished Lectureship Award (InterPore, 2023), and Nautilus Book
https://doi.org/10.1016/j.icheatmasstransfer.2023.107162
Available online 24 November 2023
0735-1933/© 2023 Published by Elsevier Ltd.

Award Winner 2023 for his book “Time and Beauty” [3].
As we mark his 75th birthday, we celebrate the enduring evolution ofan exceptional career characterized by creativity and profound scientificimpact, as well as a multitude of groundbreaking scientific methods anddesigns. What sets Adrian apart is his consistent effort to build bridges
between seemingly disparate fields and individuals. He achieves thisthrough brilliant theories and designs that unify and fortify the scientificlandscape.
Adrian's pioneering work unified thermodynamics with heat trans­
fer, fluid dynamics, and design. He demonstrated that entropy genera­tion is intrinsically linked to heat transfer and fluid flow withconfiguration (design) and that the process of design evolution is inti­
mately tied to minimizing entropy generation rate by changing thedesign of flow systems in a thermodynamics-centered manner. His
groundbreaking textbook, “Entropy Generation through Heat and FluidFlow”, published in 1982 by Wiley, laid the foundation for countlessarticles in heat transfer and thermodynamics journals that now employ
Adrian Bejan's Entropy Generation Minimization method for thermo­
dynamic system design.
Moreover, he bridged the gap between human design and design
patterns found in nature by unveiling, teaching, and publishing theConstructal Law of evolution, which applies to all systems with thefreedom to morph—animate and inanimate, human-made and natural.
This paradigm shift replaced the traditional approach of solving differ­ential equations with arbitrarily assumed boundary conditions andintroduced the doctrine of design evolution with freedom in all systems
that involve flow and movement, encompassing geophysical, biological,technological, and social realms.
The concept of ‘boundary conditions’ should not be taken for gran­ted; instead, the boundary conditions are the unknowns—the configu­
rations we aim to predict, champion, and employ. Adrian Bejan's
inaugural comprehensive textbook on this paradigm shift was publishedin 2000 as “Shape and Structure, from Engineering to Nature” [4] byCambridge University Press. It's noteworthy that this approach origi­
nated from the realm of engineering, underscoring the emergence ofholistic thinking within the scientific community. Furthermore, ithighlights the often-overlooked significance of purposeful, directional
evolution in deciphering the enigmas of nature and physics.
Adrian's commitment extends to fostering interdisciplinary collabo­
rations, bringing together biologists, physicists, sociologists, econo­
mists, managers, athletes, engineers, artists, amateurs, and polymaths.
He champions ethics in academia and the protection of intellectualproperty, actively publishing in peer-reviewed journals and authoring
accessible books for a wide audience, particularly young readers: Designin Nature (2012) and The Physics of Life (2016). His crusade forJ.L. Lage et al.

International Communications in Heat and Mass Transfer 149 (2023) 107162
einterdisciplinary dialogue persists through initiatives like the “12thConstructal Law Conference” (Turin, Italy, 2023) and his widely-used
textbooks on thermodynamics, convective heat transfer, and convec­
tion in porous media, now in their 4th and 5th editions.
Adrian introduced the predictive power of the Constructal Law tofields such as social organization, government, athletics, history ofcivilization, warfare, migration, and physics. He unveiled the pivotal
role of ‘freedom’ in shaping the evolution of society and the economy
towards greater wealth, mobility, hierarchy, and organization. His
flagship work, “Freedom and Evolution: Hierarchy in Nature, Society,and Science” (Springer Nature, 2020) [5], has just been translated intoJapanese.
Adrian Bejan's creative journey has birthed the new science ofdesign, the physics of form, and the evolutionary narrative of technologyand human civilization. His latest book, “Time and Beauty” (2022),
delves into the physics of human perceptions and how to practice design
with freedom, allure, and enduring appeal. He has pioneered the fieldsof physics of life and physics of freedom, among others. While his list ofaccomplishments is impressive, what truly matters is the man himself
and his approach to life in science.
Adrian Bejan dedicates his life to science—a relentless pursuit oftruth through the scientific method, driven by freedom, fairness, andfearlessness. Visionary thinkers thrive on freedom; they break down
barriers and explore uncharted territories. They roam. They explore
different (unexpected) fields and discover their own creativity wellbeyond the topic handed to them by their PhD advisor. Today, wecelebrate not only Adrian's numerous achievements and accolades but
also the teacher who nurtures, inspires, and guides countless others on
their own scientific journeys.

Chennai, India
Houston, USA
gCape Town, South Africa
hBologna, ItalyiLyon, FrancejTorino, ItalykIzmir, TurkeylKent, USAmLouisville, USAnHong Kong, ChinaoHong Kong, China
pAveiro, PortugalqRuston, USAr
Ontario, CanadasCuritiba, BraziltStorrs, USAuKyushu, Japanv
Québec, Canadaw
Torino, Italy
xIstanbul, Turkey
yDortmund, Germany
zVillanova, USAaa
Kanazawa, Japanab
Minneapolis, USAac
Villanova, USAadWaterloo, Canada
aeSeoul, South Korea
af
Philadelphia, USAagSanta Catarina, Brazil
ahVillanova, USAaiParma, Italy
ajTorino, Italy
akNapoli, Italy
alMiami, USAam
Stellenbosch, South Africa
anEvora, Portugal
aoCampinas, Brazil
ap
Bucharest, Romania
aq
Berlin, Germanyar
St. John's, Canada
asChennai, India
atSt. John's, Canada
auTallahassee, USAav
Atlanta, USAaw
Evora, Portugalax
Porto Alegre, BrazilayIstanbul, Turkey
az
Lexington, USAba
Gliwice, Polandbb
Berlin, Germanybc
Flagstaff, USAbd
Curitiba, BrazilbeHong Kong, China
bf
Nanjing, Chinabg
Columbia, USAbhSouth Kingstown, USAf

References[1] J.L. Lage, et al., In Celebration Professor Adrian Bejan on his 60th birthday, Int. J.
Heat Mass Transf. 51 (25–26) (2008) 5759–5761. https://www.sciencedirect.com/science/article/pii/S0017931008004201.
[2] J.L. Lage, et al., In Celebration of Professor Adrian Bejan on his 70th birthday, Int. J.
Heat Mass Transf. 126 (2018) 1377–1378.
[3] A. Bejan, Time and Beauty: Why Time Flies and Beauty Never Dies, World Scientific,Singapore, 2022.
[4] A. Bejan, Shape and Structure, from Engineering to Nature, Cambridge University
Press, Cambridge, 2020.
[5] A. Bejan, Freedom and Evolution: Hierarchy in Nature, Society and Science,Springer Nature, Switzerland, 2020.

José L. Lagea,*, William M. Worekb, Cristina H. Amonc, Mohamed
M. Awadd, Tanmay Basake, Yildiz Bayazitogluf, Tunde Bello-Ochendeg,
Cesare Bisernih, Jocelyn Bonjouri, Romano Borchiellinij, Erdal Çetkink,Jordan Charlesl, Yanyu Chenm, W.K. Chown, Jack Chuno, Vitor Costap,
Weizhong Daiq, İbrahim Dinçerr, Marcelo Erreras, Amir Faghrit,
Hooman Farzanehu, Louis Gosselinv, Giulia Grisoliaw, Umit Gunesx,Heinz Herwigy, G.F. Jerry Jonesz, Shigeo Kimuraaa, F.A. Kulackiab,Calvin Liac, Xianguo Liad, Jong S. Limae, Noam Lioraf, Pedro Litsekag,
Sylvie Lorenteah, Giulio Lorenziniai, Umberto Luciaaj, Oronzio Mancaak,Pezhman Mardanpoural, Josua P. Meyeram, Antonio Miguelan, LuizFernando Milanezao, Alexandru M. Moregaap, Tatiana Morosukaq, Yuri
S. Muzychkaar, Arunn Narasimhanas, Greg F. Natererat, Juan Ordonezau,G.P. Bud Petersonav, Antônio Heitor Reisaw, Luiz A.O. Rochaax,
Bahri Sahinay, Dusan P. Sekulicaz, Wojciech Stanekba,
George Tsatsaronisbb, Peter Vadaszbc, José V. Vargasbd, C.Y. Wenbe,Houlei Zhangbf, Yuwen Zhangbg, Zongqin Zhangbh
aDallas, USAbChicago, USAcToronto, CanadadAl Manşūrah, Egypt*2Corresponding author at: Mechanical Engineering Department, Lyle
School of Engineering, Southern Methodist University, P.O. Box750337, Dallas, TX 75275-0337, USA.
E-mail address: JLL@smu.edu (J.L. Lage).