Simulation und Messung der thermischen Behaglichkeit

Vorgestellt wird ein Ansatz, der eine Bewertung der thermischen Behaglichkeit auch unter komplexen, inhomogenen raumklimatischen Verhältnissen unter Berücksichtung der menschlichen Physiologie zulässt. Dabei wird die Strömungssimulation an ein numerisches Modell (UC Berkeley Comfort Model), welches die Thermoregulation des menschlichen Körpers abbildet, gekoppelt. Mit Hilfe der Strömungssimulation können die klimatischen Bedingungen in Räumen detailliert ermittelt werden. Darauf basierend können durch das Thermoregulationsmodell die Temperaturverteilung im menschlichen Körper, die resultierende Wärmeabgabe an die Umgebung sowie die thermische Behaglichkeit bestimmt werden. Beispielhaft wird dieser Ansatz bei der Simulation der thermischen Behaglichkeit sowie des Empfindens bei einer Flächenkühlung angewendet. Simulation and measurement of thermal comfort. An approach is introduced, which enables the assessment of thermal comfort considering the complex and inhomogeneous climatic conditions in buildings as well as the human physiology. Computational fluid dynamic is linked with a numerical model representing the thermophysiological behavior of the human body (UC Berkeley Comfort Model). By dint of CFD, the climatic conditions in buildings are simulated with a detailed resolution. Basing on the simulations, the thermophysiological model is able to determine the temperature distribution of the human body, the heat flux to the environment as well as thermal comfort. The approach is used for the exemplified investigation of thermal comfort and sensation in a room equipped with a radiant cooling floor.     

Figuring Mood: The Role of Stimmung in the Formal Approach of Heinrich Wölfflin and Alois Riegl

Roughly translatable as ‘mood’ or ‘atmosphere’, Stimmung plays a key part in the late-19th-century writings of German art historians Wölfflin and Riegl. Andrew Saunders , Associate Professor of Architecture at the University of Pennsylvania School of Design, studies the origins of the concept, which links rational perceptions of harmony with notions of emotional response. He examines the two writers' contrasting views of Stimmung in relation to the Baroque, and highlights its little acknowledged role in the inception of formalism.     

Zur Begrenzung der Rissbreiten bei dicken Wänden,u. a. am Fernbahntunnel Berlin

Minimum reinforcement for crack limitation concerning thick walls. The regulations concerning the minimum reinforcement for crack limitation, according to DIN ‐Fachbericht 102 and DIN 1045‐1, don't consider sufficient the differences in the mechanism of crack formation between thin and thick elements. Therefore thick elements are often over designed. This paper contains a design proposal for minimum reinforcement for thick walls, which can be found especially in bridge abutments ore bridge piers. The study also considers the favourable influence of measures concerning the concrete technology and the concrete curing.