scholarly journals Minimum mass vascular networks in multifunctional materials

2007 ◽  
Vol 5 (18) ◽  
pp. 55-65 ◽  
Author(s):  
H.R Williams ◽  
R.S Trask ◽  
P.M Weaver ◽  
I.P Bond
Keyword(s):  
Distribution Systems ◽  
Vessel Diameter ◽  
Constructal Theory ◽  
Fluid Distribution ◽  
Minimum Mass ◽  
Vascular Networks ◽  
Small Deviations ◽  
Structural Integration ◽  
Turbulent Flow Regime ◽  
Design Case

A biomimetic analysis is presented in which an expression for the optimum vessel diameter for the design of minimum mass branching or vascular networks in engineering applications is derived. Agreement with constructal theory is shown. A simple design case is illustrated and application to more complex cases with branching networks of several generations discussed. The analysis is also extended into the turbulent flow regime, giving an optimization tool with considerable utility in the design of fluid distribution systems. The distribution of vessel lengths in different generations was also found to be a useful design variable. Integrating a network into a structure is also discussed. Where it is necessary to adopt a non-optimum vessel diameter for structural integration, it has been shown that small deviations from the minimum mass optimum can be tolerated, but large variations could be expected to produce a punitive and rapidly increasing mass penalty.

Optimum design of fluid distribution systems in heat exchangers

2010 ◽  
Vol 6 (5) ◽  
pp. 750-759 ◽  
Author(s):  
Vojtěch Turek ◽  
Jiří Hájek ◽  
Zdeněk Jegla ◽  
Petr Stehlík
Keyword(s):  
Optimum Design ◽  
Heat Exchangers ◽  
Distribution Systems ◽  
Fluid Distribution

Vibration Response Imaging (VRI) bei Quarzstaubbedingten Lungenveränderungen

Pneumologie ◽  
2007 ◽  
Vol 61 (S 1) ◽  
Author(s):  
F Hoffmeyer ◽  
V Harth ◽  
J Bünger ◽  
J Henry ◽  
A Dehlinger ◽  
...  
Keyword(s):  
Vibration Response ◽  
Vibration Response Imaging
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