This paper documents the optimization of architecture in accordance with Bejan’s Constructal theory. For illustration, we consider the optimization of a cavity that intrudes into a solid conducting wall, having internal heat generation and adiabatic conditions on the outer surfaces. The cavity is rectangular, with fixed volume and variable aspect ratio, and the solid is trapezoidal. The objecti...

We ap ply Constructal the ory to the study of the flow struc ture of the hu man re spi ra tory tree. We show that the flow ar chi tec ture that would per form ox y gen a tion of the blood and re moval of car bon di ox ide best, i. e. with low est re sis tance, would be com posed of a chan nel sys tem with 23 bi fur ca tion with a dif fu sive zone (alveolus) at the end. As this tree matches the ...

Here we show that constructal-law physics unifies the design of animate and inanimate movement by requiring that larger bodies move farther, and their movement on the landscape last longer. The life span of mammals must scale as the body mass (M) raised to the power 1/4, and the distance traveled during the lifetime must increase with body size. The same size effect on life span and distance tr...

The constructal law is the statement that for a flow system to persist in time it must evolve in such a way that it provides easier access to its currents. This is the law of configuration generation, or the law of design. The theoretical developments reviewed in this article show that this law accounts for (i) architectures that maximize flow access (e.g. trees), (ii) features that impede flow...