Academic literature on the topic 'Strömungsvisualisierung'
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Journal articles on the topic "Strömungsvisualisierung"
Loser, T., Y. Levy, and L. Hesselink. "Strömungsvisualisierung mit Texturen." Chemie Ingenieur Technik 69, no. 9 (September 1997): 1276–77. http://dx.doi.org/10.1002/cite.330690994.
Full textLoser, Thomas, Dieter Mewes, Yuval Levy, and Lambertus Hesselink. "Strömungsvisualisierung mit Texturen." Chemie Ingenieur Technik 70, no. 11 (November 1998): 1382–87. http://dx.doi.org/10.1002/cite.330701105.
Full textOertel, Mario. "Strömungsvisualisierung auf Blocksteinrampen in Riegelbauweise." WASSERWIRTSCHAFT 101, no. 9 (September 2011): 34–41. http://dx.doi.org/10.1365/s35147-011-0127-3.
Full textDollinger, Christoph, Daniel Gleichauf, Nicholas Balaresque, Michael Sorg, and Andreas Fischer. "Messung des strömungsbeeinflussenden Kontaminationsgrads von Rotorblättern mittels thermografischer Strömungsvisualisierung / Measurement of the rotor blade contamination level by means of thermographic flow visualization." tm - Technisches Messen 85, s1 (September 1, 2018): s129—s135. http://dx.doi.org/10.1515/teme-2018-0024.
Full textKaiser, Erwin. "Oberflächentemperaturmessung mit Flüssigkristallen für Strömungsvisualisierung (Surface Temperature Measurement with Liquid Crystals for Flow Visualisation)." tm - Technisches Messen 70, no. 6-2003 (June 2003): 279–85. http://dx.doi.org/10.1524/teme.70.6.279.20035.
Full textNOORI, N., W. TRUBEL, P. POLTERAUER, R. ULLRICH, J. MASCHERBAUER, H. BAUMGARTNER, and H. SCHIMA. "IN-VITRO STRÖMUNGSVISUALISIERUNG AN END-ZU-SEIT GRAFT ANASTOMOSEN UND STENOSEN MIT EINEM SCHNELLBILD-KAMERASYSTEM." Biomedizinische Technik/Biomedical Engineering 43, s2 (1998): 66–68. http://dx.doi.org/10.1515/bmte.1998.43.s2.66.
Full textDollinger, Christoph, Michael Sorg, Nicholas Balaresque, and Andreas Fischer. "Hochauflösende thermografische Strömungsvisualisierung bei Windenergieanlagen im Betrieb." tm - Technisches Messen 84, s1 (September 26, 2017). http://dx.doi.org/10.1515/teme-2017-0032.
Full textUffrecht, Wieland, and Erwin Kaiser. "Streulichtmessungen in Luft zur Strömungsvisualisierung in rotierenden Kammern (Stray Light Measurement in Air for the Visualisation of Air Flow in Rotating Cavities)." tm - Technisches Messen 72, no. 12/2005 (January 1, 2005). http://dx.doi.org/10.1524/teme.2005.72.12.671.
Full textDissertations / Theses on the topic "Strömungsvisualisierung"
Born, Silvia. "Illustrative Flow Visualization of 4D PC-MRI Blood Flow and CFD Data." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-154354.
Full textThis thesis’ central theme is the use of illustrative methods to solve flow visualization problems. The goal of flow visualization is to provide users with software tools supporting them analyzing and extracting knowledge from their fluid dynamics data. This fluid dynamics data is produced in large amounts by simulations or measurements to answer diverse questions in application fields like engineering or medicine. This thesis deals with two unsolved problems in flow visualization and tackles them with methods of illustrative visualization. The latter is a subbranch of visualization whose methods are inspired by the art work of professional illustrators. They are specialized in the comprehensible and esthetic representation of complex knowledge. With illustrative visualization, their techniques are applied to real data to enhance their representation. The first problem dealt with in this thesis is the limited shape and flow perception of complex stream surfaces. Self-occlusion and wrap-ups hinder their effective use in the most interesting flow situations. On the basis of hand-drawn flow illustrations, a surface rendering method was designed that uses silhouettes, non-photorealistic shading, and illustrative surface stream lines. Additionally, geometrical and flow-based surface cuts allow the user an interactive exploration of the surface and the flow it represents. By applying this illustrative technique to various stream surfaces and collecting expert feedback, we could show that the comprehensibility of the stream surfaces was enhanced – especially in complex areas with surface wrap-ups and singularities. The second problem tackled in this thesis is the analysis of blood flow from 4D PC-MRI data. From this rather young data modality, medical experts expect many advances in the research of cardiovascular diseases because it delivers a three-dimensional and time-resolved image of the hemodynamics. However, 4D PC-MRI data are mainly processed with standard flow visualizaton tools, which do not fulfill the requirements of medical users. They need a quick and easy-to-understand display of the relevant blood flow aspects. We developed a tool for the visual analysis of blood flow that allows a fast detection of distinctive flow patterns, such as high-velocity jets, vortices, or areas with high residence times. The basic idea is to precalculate integral lines and use specifically designed line predicates to select and display only lines involved in the pattern of interest. Traditional blood flow illustrations inspired us to an abstract and comprehensible depiction of the resulting line bundles and vortices. The line predicate method and the illustrative flow pattern representation were successfully tested with 4D PC-MRI data of healthy and pathological aortae and hearts. Also, the feedback of several medical experts confirmed the usefulness of our methods and their capabilities for a future application in the clinical research and routine
Reich, Wieland. "Spectral, Combinatorial, and Probabilistic Methods in Analyzing and Visualizing Vector Fields and Their Associated Flows." Doctoral thesis, Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-222643.
Full textDa, Silva Marco Jose. "Impedance Sensors for Fast Multiphase Flow Measurement and Imaging." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1228836406821-31677.
Full textCuntz, Nicolas [Verfasser]. "Real time particle systems and their application to flow visualization = Echtzeit-Partikelsysteme und deren Anwendung auf Strömungsvisualisierung / von Nicolas Cuntz." 2009. http://d-nb.info/99957731X/34.
Full textBorn, Silvia. "Illustrative Flow Visualization of 4D PC-MRI Blood Flow and CFD Data." Doctoral thesis, 2013. https://ul.qucosa.de/id/qucosa%3A12969.
Full textThis thesis’ central theme is the use of illustrative methods to solve flow visualization problems. The goal of flow visualization is to provide users with software tools supporting them analyzing and extracting knowledge from their fluid dynamics data. This fluid dynamics data is produced in large amounts by simulations or measurements to answer diverse questions in application fields like engineering or medicine. This thesis deals with two unsolved problems in flow visualization and tackles them with methods of illustrative visualization. The latter is a subbranch of visualization whose methods are inspired by the art work of professional illustrators. They are specialized in the comprehensible and esthetic representation of complex knowledge. With illustrative visualization, their techniques are applied to real data to enhance their representation. The first problem dealt with in this thesis is the limited shape and flow perception of complex stream surfaces. Self-occlusion and wrap-ups hinder their effective use in the most interesting flow situations. On the basis of hand-drawn flow illustrations, a surface rendering method was designed that uses silhouettes, non-photorealistic shading, and illustrative surface stream lines. Additionally, geometrical and flow-based surface cuts allow the user an interactive exploration of the surface and the flow it represents. By applying this illustrative technique to various stream surfaces and collecting expert feedback, we could show that the comprehensibility of the stream surfaces was enhanced – especially in complex areas with surface wrap-ups and singularities. The second problem tackled in this thesis is the analysis of blood flow from 4D PC-MRI data. From this rather young data modality, medical experts expect many advances in the research of cardiovascular diseases because it delivers a three-dimensional and time-resolved image of the hemodynamics. However, 4D PC-MRI data are mainly processed with standard flow visualizaton tools, which do not fulfill the requirements of medical users. They need a quick and easy-to-understand display of the relevant blood flow aspects. We developed a tool for the visual analysis of blood flow that allows a fast detection of distinctive flow patterns, such as high-velocity jets, vortices, or areas with high residence times. The basic idea is to precalculate integral lines and use specifically designed line predicates to select and display only lines involved in the pattern of interest. Traditional blood flow illustrations inspired us to an abstract and comprehensible depiction of the resulting line bundles and vortices. The line predicate method and the illustrative flow pattern representation were successfully tested with 4D PC-MRI data of healthy and pathological aortae and hearts. Also, the feedback of several medical experts confirmed the usefulness of our methods and their capabilities for a future application in the clinical research and routine.
Reich, Wieland. "Spectral, Combinatorial, and Probabilistic Methods in Analyzing and Visualizing Vector Fields and Their Associated Flows." Doctoral thesis, 2016. https://ul.qucosa.de/id/qucosa%3A15535.
Full textKoch, Stefan. "Developing and Utilizing the Concept of Affine Linear Neighborhoods in Flow Visualization." 2020. https://ul.qucosa.de/id/qucosa%3A74834.
Full textIn many research areas, such as medicine, natural sciences or engineering, scientific visualization plays an important role and helps scientists to gain new insights. This is because visualizations can make the invisible visible. For example, visualizations can reveal the course of nerve fibers in the brain of test persons or the air flow around obstacles. This thesis in particular contributes to the subfield of flow visualization, which targets the investigation of processes in fluids and gases. A popular way to gain insights into complex datasets is to identify simple and known structures within a dataset. In case of flow visualization, this leads to the concept of local linearizations and linearity in general. This is because linear vector fields represent the most simple class of non-trivial fields and they are extremely well understood. Typically, simulated datasets are discretized into individual cells that are based on linear interpolation. Also, in vector field topology, stationary points can be characterized by considering the local linear flow behavior in their vicinity. Therefore, linearity is ubiquitous. Through the understanding of local linear flow behavior in vector fields by applying the concept of local linearity, some visualization methods have been improved significantly. Similar successes can be expected for other methods. In this thesis, the use of linearity in visualization is investigated. First, an existing definition of linear neighborhoods is extended towards the affine linear neighborhoods. Affine linear neighborhoods are regions of mostly linear flow behavior. A detailed discussion of the definition and of the chosen error measures is provided. Also a region growing algorithm that extracts affine linear neighborhoods around arbitrary positions up to a certain user-defined approximation error threshold is introduced. To measure the local linearity in vector fields, a complementary approach that computes the quality of the best possible linear approximation for a given n-ring neighborhood is discussed. As a first application, the affine linear neighborhoods around stationary points are used to visualize their region of influence, their interaction with the non-linear flow around them as well as their interaction with closely neighbored stationary points. The analytic description of the flow within a linearized region can be used to compress vector fields and accelerate existing visualization approaches, especially in case of very large datasets. In particular, the presented method aims at improving over a series of compression algorithms for grid-based vector fields that are based on edge collapse. In contrast to previous approaches, affine linear neighborhoods serve as the basis for a segmentation in order to provide an upper error bound and also to ensure a high quality of the compression results. To evaluate different compression approaches, the impact of their particular approximation errors on streamline integration as well as on integration-based visualization methods is discussed on the example of Finite-Time Lyapunov Exponent computations. To conclude the thesis, a first possible extension of linearity to fields on two-dimensional manifolds, based on an adaptive atlas-based vector field decomposition, is given.
Books on the topic "Strömungsvisualisierung"
Frühauf, Thomas. Graphisch-Interaktive Strömungsvisualisierung. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60766-0.
Full textGraphisch-Interaktive Strömungsvisualisierung. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997.
Find full textBook chapters on the topic "Strömungsvisualisierung"
Frühauf, Thomas. "Strömungsvisualisierung." In Beiträge zur Graphischen Datenverarbeitung, 26–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60766-0_3.
Full textFrühauf, Thomas. "Interaktion und Interaktivität bei der Strömungsvisualisierung." In Beiträge zur Graphischen Datenverarbeitung, 168–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60766-0_10.
Full textLeue, Carsten, Peter Geißler, Frank Hering, and Bernd Jähne. "Segmentierung von Partikelbildern in der Strömungsvisualisierung." In Informatik aktuell, 118–29. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80294-2_13.
Full text"Alternatives Messsystem zur Strömungsvisualisierung und Strömungsmessung im Schwimmen." In Technologien im Leistungssport 2, edited by Ina Fichtner, 17–21. Meyer & Meyer Sportverlag, 2017. http://dx.doi.org/10.5771/9783840312106-17.
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