The 7th International Symposium on Fluid Control, Measurement and VisualizationJournal of Visualization - Tập 7 - Trang 167-170 - 2004
G. M. Carlomagno
The 7th International Symposium on Fluid Control, Measurement and Visualization (FLUCOME’03) was held in Sorrento, Italy, from the 25th to the 28th of August 2003. The Symposium attracted, by far, one of the largest number of participants in the history of the meeting. The 232 presented papers were distributed in 52 Technical Sessions which covered the very broad range of topics indicated in the Keywords. At the beginning of each working day, a speaker, selected among renowned specialists, delivered an authoritative lecture in Plenary Session. Prof. W. Merzkirch discussed Fluid Mechanical Problems in Flow Metering, Prof. C. J. Chen described Some Aspects of Nanotechnology, Microtechnology and Biomedical Applications, and Dr. A. Cogotti treated From Steady-State to Unsteady Aerodynamics and Aeroacoustics. The Evolution of the Testing Environment in the Pininfarina Wind Tunnel while Prof. B. T. Zinn reported on The Real Time Control of the Lean Blow Out Limit in Pre-Mixed Combustors for Reduced NOx Emissions. On the last day, Prof. A. Tamir entertained the audience by considering the interaction between art and science
StanceVis Prime: visual analysis of sentiment and stance in social media textsJournal of Visualization - - 2020
Kostiantyn Kucher, Rafael Messias Martins, Carita Paradis, Andreas Kerren
AbstractText visualization and visual text analytics methods have been successfully applied for various tasks related to the analysis of individual text documents and large document collections such as summarization of main topics or identification of events in discourse. Visualization of sentiments and emotions detected in textual data has also become an important topic of interest, especially with regard to the data originating from social media. Despite the growing interest in this topic, the research problem related to detecting and visualizing various stances, such as rudeness or uncertainty, has not been adequately addressed by the existing approaches. The challenges associated with this problem include the development of the underlying computational methods and visualization of the corresponding multi-label stance classification results. In this paper, we describe our work on a visual analytics platform, called StanceVis Prime, which has been designed for the analysis of sentiment and stance in temporal text data from various social media data sources. The use case scenarios intended for StanceVis Prime include social media monitoring and research in sociolinguistics. The design was motivated by the requirements of collaborating domain experts in linguistics as part of a larger research project on stance analysis. Our approach involves consuming documents from several text stream sources and applying sentiment and stance classification, resulting in multiple data series associated with source texts. StanceVis Prime provides the end users with an overview of similarities between the data series based on dynamic time warping analysis, as well as detailed visualizations of data series values. Users can also retrieve and conduct both distant and close reading of the documents corresponding to the data series. We demonstrate our approach with case studies involving political targets of interest and several social media data sources and report preliminary user feedback received from a domain expert.
Graphic abstract A smoke visualisation technique for wake flow from a moving human manikinJournal of Visualization - Tập 20 Số 1 - Trang 125-137 - 2017
Inthavong, Kiao, Tao, Yao, Petersen, Phred, Mohanarangam, Krishna, Yang, William, Tu, Jiyuan
An experimental technique using the chemical reaction between acetic acid (CH3COOH) and cyclohexylamine (C6H13N) generated smoke to visualise wake flow from a moving object. A 1/5th scaled manikin was dabbed with cyclohexylamine on specific locations and entered an acetic acid saturated chamber. Smoke was generated via the chemical reaction as the manikin moved through the chamber. High-speed photography and image processing techniques were used to determine whether qualitative and quantitative data could be produced for (1) better understanding the effects of trailing wakes on particle exposure induced by human movement and (2) validation data for computational fluid dynamic (CFD) modelling results. Image analysis showed three phases of manikin movement: peak velocity, deceleration, and stationary. Detailed flow separation images showed that regular vortices were produced at the left shoulder, while flow separating at the hand swirled behind and inwards. Analysis of flow over the head revealed how the separation point shifted from the back of the head to the front as the velocity decreased. The results demonstrated that the experimental method was feasible in producing meaningful results for wake flow phenomena behind a manikin and validation data for CFD simulations.
Experimental and numerical dye washout flow visualizationJournal of Visualization - Tập 7 - Trang 233-240 - 2004
L. Goubergrits, Ch. Petz, D. Stalling, A. Spuler, K. Affeld
Flow visualization in realistic models is very important for the study of pathological vessel enlargements (aneurysms). Furthermore, flow visualization may help in treatment decisions. However, the most interesting parameter, the wall shear stress, is difficult to measure in vivo. This parameter can be provided by computational fluid dynamics. However, the numerical methods don’t visualize the results as does of the dye washout method — a method often used in flow studies. This experimental method simulates the cine angiograms acquired during contrast agent injection used in medicine. In this paper we present the dye washout visualization of CFD results and compare these results with the conventional dye washout experiments in the same aneurysm model under steady flow conditions.
Chemically racting liquid round jetJournal of Visualization - Tập 6 - Trang 225-234 - 2003
S. D. Hong, K. Okamoto, H. J. Kim, Y. Sugii, H. Madarame
An experimental study was conducted on a chemically reacting liquid round free jet. The Laser Induced Fluorescence (LIF) technique was adopted to evaluate the mixing both the upstream region near the transition point and the downstream region far away from the transition point, and comparisons were conducted between the reacting and the non-reacting jet cases. In the downstream region, the jet profiles for the two cases were found to be quite different. It was concluded that the occurrence of a chemical reaction affects the momentum diffusion of the jet in the downstream region, which results in these differences.
The Eighth International Symposium on Fluid Control, Measurement and Visualization (8th FLUCOME)Journal of Visualization - Tập 9 - Trang 227-235 - 2006
Q. D. Wei
This report introduced 8th International Symposium on Fluid Control, Measurement and Visualization that was held in Chengdu, China, from August 22 to 25, 2005. The contents consists of six parts: 1) background, 2) overview, 3) academic exchange, 4) award, 5) meeting of International Steering Committee, 6) acknowledgement.
