The drag of a car is highly dependent on the topology of its complex wake system. Small changes in the shape of the car, that do not have a big effect when considered separately, can lead to significant changes in the total drag when the vortex systems of the changed part of the car body interact with the wake vortices. To understand these interferences, a method is necessary that decomposes the flow based on dynamic information. In this paper, the feasibility of using the Dynamic Mode Decomposition (DMD) to analyze the dynamic behavior of the wake flow of a car is investigated. The DMD is found to extract useful information from the flow when applied to three dimensional velocity vector fields. The CFD simulations are validated by yet unpublished experimental results from experiments in two different wind tunnels.
ZusammenfassungIn diesem Essay nähern wir uns der Sprache der Liebe an, tasten sie sprachwissenschaftlich nach Ernst Leisi (2016Leisi ( [1978), psychologisch nach John Gottman (1994, 2015 [1999]) und paartherapeutisch nach Harville Hendrix (2007) ab, suchen leidenschaftlich und finden uns wieder in den Bemühungen, der schwierigsten Kommunikation aller Beziehungsarten, weil sie eben der ehrlichste Spiegel von uns ist, auf die Spur zu kommen. Dazwischen werden szenische Gedanken über die verschiedenen Stadien der Liebe und ihrer Sprachen eingebracht. Schlüsselwörter Sprache · Liebe · Literarischer Essay Subject: language and loveTalking to each other and finding home Abstract In this essayistic text, we approach the language via the state of being in love. We try to get a feel for the language of love from a linguistic perspective (Ernst Leisi 2016 [1978), from a psychological viewpoint (John Gottman 1994and 2015 [1999), as well as based on couples therapy (Harville Hendrix 2007). We search passionately and find ourselves in efforts to deepen our understanding of the most difficult form of communication when it comes to interpersonal relationships. Throughout the text, we will insert scenic ideas about the different stages of love and their respective language.C. Mertlitsch ( ) Universitätsstraße 65-67, 9020 Klagenfurt, Österreich E-Mail: Carmen.Mertlitsch@aau.at
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