Die Buckingham-Similarität und Superformance von Surfboardfinnen

Wissenschaftlicher Aufsatz aus dem Jahr 2017 im Fachbereich Ingenieurwissenschaften - Schiffstechnik, Schiffsbau, Ozeantechnik, , Sprache: Deutsch, Abstract: Innovations derived from the analysis of biological systems can trigger downsizing campaigns. One goal is the design influence on technical parameters of a construction with the same performance of the system. Often, other geometric, functional and process control variables also change in a positive direction. In the following, the middle-hand bone system of the vertebrate is a model for load-adaptive artificial wings for surfboard fins with intelligent mechanics. The performance characteristics are improved, the geometry in a future design is more compact, geometry reduction, elasticity and compactness lead to an extremely robust, regenerative and therefore resilient wing system. The paper presents a similarity model, which is derived from the similarity theory and uses the dimensional analysis of the physical quantity to be examined. The Buckinghamian -Theorem is the paradigmatic core of this downsizing concept. It is subsequently applied to the shape optimization of a standardized surfboard Fin and numerical methods are used to simulate the flow properties of that fin. The result is an airfoil system which satisfies the criteria of 'SuPerforming'.

Michael Dienst lives and works in Berlin and is sailing for the Club Nautique Francais de Tegel (CNFT). He is spokesman at the BIONIC RESEARCH Unit at the University of Applied Sciences Berlin and lecturer for Bionic Engineering at the Industrial Design Institute of the University of Applied Sciences in Magdeburg.