Thermohydrodynamic Programming and Constructal Design in Microsystems

1. Introduction to Constructal Theory in Microsystems
1.1 Overview - Thermal Management in Micro and Nanosystems
1.2 Entropy Generation Minimization
1.3 Description of Efficiency, Territory and Compactness
1.3.1“Point-to-Point” Flow
1.3.2 Management of Imperfections
1.4 Concept of “Heatline” vs “Entransy”

2. Convection Thermohydraulics – Microchannel Networks
2.1 Convection Tree Design
2.1.1 Flow Resistance Minimization
2.1.2 “Point-to-Area/Volume” Tube Network
2.1.3 H-Shaped Hydraulic Network
2.1.4 Size Limitation for Miniaturization
2.2 Boundary Adaption: Rectangular vs Cylindrical Heat Sources

3. Highly Conductive Thermal Inserts – Modification to Volumetric Heat Sources in Microscale
3.1 Hierarchical Ramification
3.1.1 Rectangular Units
3.1.2 Discrete and Continuous Cross-Sectional Variation for Conductive Channels
3.1.3 Cavity Morphology
3.1.4 Point-Volume Structures
3.2 Reduced-Order Models
3.3 Bonding and Thermal Stress – Practical Concerns

4. Capillary Flows in Micro and Nano Scale
4.1Capillary Flows and Capillary Filling
4.2 Contact Line Region & Heat Transfer Characterization
4.3 Capillary Pumped Loop and Loop Heat Pipes

5. Capillary Flows in Porous Media
5.1 Lumped-Parameter-Method in Tortuous Fractals
5.2 Effect of Cavitation on Constructal Design
5.3 Programmable Flow Control in Microfluidics
5.4 Wick and Interstice for Loop Heat Pipes
5.5 Transpiration Tree and Vascular Network
5.5.1 Capillary Dynamics
5.5.2 Constructal Capillary Network

6. Design Optimization for Micro-Thermo-Fluidic-Systems
6.1 Conjugate Conduction-Convection Design
6.1.1 T-Type Fins
6.1.2 Fin Array Layout
6.1.3 Leaf-Vasculature / Umbrella-shaped Rib Structure
6.1.4 Wall-Mounted Discrete Heat Sources
6.1.5 Insulation with Volumetric/Mechanical Constraints
6.2 Multiobjective Design Algorithms
6.2.1 Normal Boundary Intersection &a

Thermohydrodynamic Programming and Constructal Design in Microsystems explains the direction of a morphing system configuration that is illustrated by life evolution in nature. This is sometimes referred to as the fourth law of thermodynamics, and was first applied in thermofluidic engineering, with more recent applications in physics and biology. The book specifically focuses on synthetic modeling and constructal optimization in the design of microsystemic devices, which are of particular interest to researchers and practitioners in the sphere of micro- and nanoscale physics, a mechanistically deviation from conventional theory.

The book is an important reference resource for researchers working in the area of micro- and nanosystems technology and those who want to learn more about how thermodynamics can be effectively applied at the micro level.

• Explains how the application of constructal theory can lead to more effective microsystems design
• Offers an introduction to the fundamentals and application to different flow and heat/mass transport systems
• Bridges the gap between theoretical design and optimization, from a practical point-of-view

Researchers and engineers working in the areas of heat transfer, thermodynamics and systems design; materials scientists working on nanoprocessing and with nanomaterials to improve thermal efficiency