+ All Categories
Home > Documents > Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time...

Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time...

Date post: 20-Dec-2015
Category:
View: 218 times
Download: 3 times
Share this document with a friend
Popular Tags:
20
Constructal Theory Adrian Bejan, 1996
Transcript
Page 1: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Constructal Theory

Adrian Bejan, 1996

Page 2: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Constructal Law

"For a finite-size system to persist in time (to live), it must evolve in such a way that it

provides easier access to the imposed currents that flow through it."

-Bejan, 1996-

Page 3: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Constructal Theory

Flow systems under size-constraint Tree architecture predicted

Tree/Vascular/Dendritic

Page 4: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Applications

Page 5: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

River delta

Page 6: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Tree (and roots)

Page 7: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Vascular

Page 8: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

3D microvascular

Page 9: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Heat dissipation under skin

Page 10: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Airport

Page 11: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Dendritic

Page 12: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Chip cooling

Page 13: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Towards chip cooling

Page 14: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Heat transfer (cooling)

Page 15: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Combustor

Page 16: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Heat exchanger design

Page 17: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Cross flow heat exchanger

Page 18: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

From principle to shape

Page 19: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Principles

Every system will remain imperfect The best that can be done is to optimally

distribute imperfections Imperfections distribute to the smallest

scale of system This optimal distribution will result in the

geometry/shape of the system The perfect form is the least imperfect

form possible.

Page 20: Constructal Theory Adrian Bejan, 1996. Constructal Law "For a finite-size system to persist in time (to live), it must evolve in such a way that it provides.

Analogies


Recommended