Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5514
Title: Constructal vascularized structures
Authors: Çetkin, Erdal
Keywords: Constructal law
Distributing flows
Point to area flows
Smart materials
Vascularization
Issue Date: Jan-2015
Publisher: Walter de Gruyter GmbH
Source: Çetkin, E. (2015). Constructal vascularized structures. Open Engineering, 5(1), 220-228. doi:10.1515/eng-2015-0017
Abstract: Smart features such as self-healing and selfcooling require bathing the entire volume with a coolant or/and healing agent. Bathing the entire volume is an example of point to area (or volume) flows. Point to area flows cover all the distributing and collecting kinds of flows, i.e. inhaling and exhaling, mining, river deltas, energy distribution, distribution of products on the landscape and so on. The flow resistances of a point to area flow can be decreased by changing the design with the guidance of the constructal law, which is the law of the design evolution in time. In this paper, how the flow resistances (heat, fluid and stress) can be decreased by using the constructal law is shown with examples. First, the validity of two assumptions is surveyed: using temperature independent Hess-Murray rule and using constant diameter ducts where the duct discharges fluid along its edge. Then, point to area types of flows are explained by illustrating the results of two examples: fluid networks and heating an area. Last, how the structures should be vascularized for cooling and mechanical strength is documented. This paper shows that flow resistances can be decreased by morphing the shape freely without any restrictions or generic algorithms.
URI: http://doi.org/10.1515/eng-2015-0017
http://hdl.handle.net/11147/5514
ISSN: 2391-5439
2391-5439
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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