Journal of Visualization
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Vortex generation using fin-slot structures and a submerged nozzle at a wall-injected cylinder
Journal of Visualization - Tập 17 - Trang 41-47 - 2013
The internal flows of solid rocket motors are not yet fully understood. Several cold-air flow experiments that simulated combustion gas flow with compressed gas wall injections have been conducted to observe the behavior of internal flows and acoustic phenomena. Direct visualization, however, has rarely been performed due to the non-transparency of the wall-injecting media. In this study, novel te...... hiện toàn bộ
Experimental study of the effect of the LEX angle on the flow pattern of a diamond wing with an airfoil cross section
Journal of Visualization - Tập 26 - Trang 1247-1262 - 2023
In this research, the effect of the leading-edge extension (LEX) angle on the flow pattern upstream and downstream of the diamond wing has been investigated experimentally. The measurement of turbulence intensity by the hot-wire and the measurement of pressure on the wing by the five-hole probe in a closed-circuit wind tunnel at a free flow velocity of 12.5 m/s, which is equivalent to the Reynolds...... hiện toàn bộ
Adjoint-enhanced flow visualization
Journal of Visualization - Tập 21 - Trang 819-834 - 2018
This work presents a novel method of visually capturing the relative importance of different flow regions with respect to a quantity of interest. Existing flow visualization techniques are enhanced to convey flow importance. This is accomplished by filtering their output with additional information obtained from the adjoint counterpart of the physical flow field. The additional adjoint data is of ...... hiện toàn bộ
VisAct: a visualization design system based on semantic actions
Journal of Visualization - Tập 23 - Trang 339-352 - 2019
Current visualization design toolkits help users to explore data and create visualizations. However, most of these systems do not record the executed actions during the visualization construction process with semantic context. In this paper, we present VisAct, a visualization design system based on semantic actions, that helps average users to construct visualizations step by step. Our system cont...... hiện toàn bộ
Touching data with PropellerHand
Journal of Visualization - Tập 26 - Trang 161-176 - 2022
Immersive analytics often takes place in virtual environments which promise the users immersion. To fulfill this promise, sensory feedback, such as haptics, is an important component, which is however not well supported yet. Existing haptic devices are often expensive, stationary, or occupy the user’s hand, preventing them from grasping objects or using a controller. We propose PropellerHand, an u...... hiện toàn bộ
Three-dimensional span effects of high-aspect ratio synthetic jet forcing for separation control on a low Reynolds number airfoil
Journal of Visualization - Tập 20 - Trang 45-51 - 2016
The three-dimensional structure of the reattached flow caused by synthetic jet actuation on an airfoil was investigated using surface flow visualization. Without active control, the flow was stalled with laminar boundary layer separation occurring near the leading edge. Tuft and oil visualization showed the shape and spanwise extent of the attached flow due to a finite span synthetic jet where the...... hiện toàn bộ
Visualization of asphaltene deposition effects on porosity and permeability during CO2 flooding in porous media
Journal of Visualization - Tập 19 - Trang 603-614 - 2016
In the present study, three types of experiments on immiscible CO2 flooding in porous media were conducted and high-resolution images of asphaltene precipitation obtained using X-ray micro-CT scanner. It was found that the effective oil mobility is reduced due to the adsorption of deposited asphaltene onto the rock which blocks the pore throats, whereby the formation wettability is changed and bot...... hiện toàn bộ
Flowfield features on hypersonic flow over rectangular obstacles
Journal of Visualization - Tập 4 - Trang 73-79 - 2001
The complex separated flows induced by shock wave/boundary layer interaction were studied at hypersonic speed of Mach number 5. The experimental results on hypersonic flow over a set of rectangular cylinders are presented in this paper. The rectangular cylinder mounted on a flat plate worked as a typical model to simulate the obstacle on the vehicle surface. The effects of flow interaction on the ...... hiện toàn bộ
Event-based exploration and comparison on time-varying ensembles
Journal of Visualization - Tập 23 - Trang 111-123 - 2019
We propose an event-based analysis system for comparison of several ensemble time-varying simulations. In this pipeline, users can customize the selection of events (i.e., the keyframes of the simulations) for each simulation on the timeline view.
The associated rendered thumbnails are tiled in the rendered thumbnail view. The ticks on the timeline and the rendered thumbnails are connected by a li...... hiện toàn bộ
Unraveling the release of gaseous CO2 during champagne serving through high-speed infrared imaging
Journal of Visualization - Tập 16 - Trang 47-52 - 2012
A standard 75-cl bottle of champagne holds about 5 l of dissolved carbon dioxide (CO2). When pouring champagne into a glass, a significant part of dissolved CO2 desorbs from the liquid phase (Liger-Belair in J Agric Food Chem 53:2788–2802, 2005; Liger-Belair et al. in Chem Soc Rev 37:2490–2511, 2008a). As CO2 is invisible under natural light, its progressive release in the atmosphere was made visi...... hiện toàn bộ
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