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Journal of Visualization OnlineFirst articles

14.01.2022 | Regular Paper

Flight characteristics and flow structure of the autorotating maple seeds

The present study numerically investigated fluid-physical aspects of the autorotative flight of real maple seeds. The flow field and the motion characteristics of the autorotating maple seed were calculated by simultaneously solving the …

Autoren:
Myong Hwan Sohn, Dong Kyun Im

14.01.2022 | Regular Paper

Experimental study on the spray characteristics of a gas–liquid pintle injector element

As a suitable choice for throttling liquid rocket engines and reducing engine weight, the pintle injector with unique spray characteristics can not only adjust the mass flow rate of propellants, but also allow for a single injector system. In …

Autoren:
Xuan Jin, Chibing Shen, Sen Lin, Rui Zhou

14.01.2022 | Regular Paper

Visualization of drug delivery via tattooing: effect of needle reciprocating frequency and fluid properties

The tattooing technique reportedly dates back to the Neolithic period from ancient artifacts discovered by archaeologists (Friedman et al. 2018 ), but only to the fourth millennium BC based on tattoos found on mummified human skin (Petersen and …

Autoren:
Idera Lawal, Pankaj Rohilla, Jeremy Marston

14.01.2022 | Regular Paper

Experimental investigation of natural convection bubbly flows along a vertical heated plate with mixed wettability surfaces

Natural convection along a heated wall in liquids (Vliet 1969 ; Lloyd et al. 1972 ; Shaukatullah and Gebhart 1978 ) can be seen in various types of heat exchangers, from solar water heaters to liquid-immersion-cooling systems for computers. The …

Autoren:
Atsuhide Kitagawa, Reona Kobayashi, Yasuharu Munezane

01.01.2022 | Regular Paper Open Access

WaveRange: wavelet-based data compression for three-dimensional numerical simulations on regular grids

Partial differential equations often arise in physical sciences from three-dimensional (3D) continuum models, yielding boundary value problems for continuous field variables defined over 3D spatial domains. Numerical solution of these problems …

Autoren:
Dmitry Kolomenskiy, Ryo Onishi, Hitoshi Uehara

19.11.2021 | Regular Paper

iPoet: interactive painting poetry creation with visual multimodal analysis

Fig. 1 Interface of iPoet consists of seven components: a Painting View explores ancient Chinese paintings; b Element View shows the scenery and object elements detected by algorithms; c Vernacular View offers various candidates for element-related …

Autoren:
Yingchaojie Feng, Jiazhou Chen, Keyu Huang, Jason K. Wong, Hui Ye, Wei Zhang, Rongchen Zhu, Xiaonan Luo, Wei Chen

19.11.2021 | Short Paper

Measurement of underwater sound produced by a hydrophobic sphere entering water

A hydrophobic sphere entering water makes an air cavity behind it. Pioneering work of solid–liquid impact can be found in Worthington and Cole ( 1997 , 1900 ) who used single-spark photography to investigate the air cavity formed by the entry of a …

Autoren:
Y. Ueda, M. Iguchi

18.11.2021 | Regular Paper

CNERVis: a visual diagnosis tool for Chinese named entity recognition

With the recent development of artificial intelligence, natural language processing (NLP) applications play more and more critical roles in our life. At the same time, named entity recognition (NER) also becomes more important because NER has a …

Autoren:
Pei-Shan Lo, Jian-Lin Wu, Syu-Ting Deng, Ko-Chih Wang

11.11.2021 | Regular Paper Open Access

Gaze-driven placement of items for proactive visual exploration

Recent advances in digital signage technology have improved the ability to visually select specific items within a group. Although this is due to the ability to dynamically update the display of items, the corresponding layout schemes remain a …

Autoren:
Shigeo Takahashi, Akane Uchita, Kazuho Watanabe, Masatoshi Arikawa

09.11.2021 | Regular Paper

SurVizor: visualizing and understanding the key content of surveillance videos

With the rapid development of society, video surveillance has progressively expanded into different areas of life, such as transportation, security inspection, banks. There are a large number of replaced and newly deployed cameras in fields such …

Autoren:
Guodao Sun, Tong Li, Ronghua Liang

06.11.2021 | Regular Paper

PEVis: visual analytics of potential anomaly pattern evolution for temporal multivariate data

Analyzing temporal multivariate data that can reveal the law of natural development and evolution is becoming increasingly important to studying various phenomena in the real world. For example, through mining multivariate air pollution …

Autoren:
Cheng Lv, Ke Ren, Huijie Zhang, Jia Fu, Yiming Lin

02.11.2021 | Regular Paper

Neural network training fingerprint: visual analytics of the training process in classification neural networks

Deep neural networks (DNNs) are currently among the state-of-the-art for analyzing large-scale and complex datasets due to their ability to abstract high-level patterns and model data beyond most heuristics (Goodfellow et al. 2016 ; LeCun et al.

Autoren:
Martha Dais Ferreira, Gabriel D. Cantareira, Rodrigo F. de Mello, Fernando V. Paulovich

02.11.2021 | Regular Paper

On the large-scale streaks in the logarithmic layer of wall-bounded flows

Laboratory experiments were performed to characterize the distinct features of hairpin-like vortical structures induced via pulsed, wall-normal jets in laminar (LBL), and turbulent boundary layers (TBLs). Hotwire anemometry was used to …

Autoren:
Jian-Hua Liu, Nan Jiang, Leonardo P. Chamorro

29.10.2021 | Regular Paper

EddyVis: A visual system to analyze eddies

Oceanic mesoscale eddies are typically understood as vortices with diameters ranging from tens to hundreds of kilometers, which may live for several months Williams et al. ( 2011 ). They play an important role in the transport of heat, salt …

Autoren:
Runpu Yue, Guan Li, Xuyi Lu, Sisi Li, Guihua Shan

28.10.2021 | Regular Paper

The interaction of vortices induced by a pair of microjets in the turbulent boundary layer

Experimental and numerical study of active and passive flow control are notable and highly practical subjects in aircraft and missiles. Fluid jets are invaluable tools for this purpose. Accordingly, the present study delves into the effects of a …

Autoren:
Mohammad Javad Pour Razzaghi, Cheng Xu, Aliakbar Emamverdian

16.10.2021 | Regular Paper

Virtual-reality visualization of loss points of 1 MeV tritons in the Large Helical Device, LHD

Intersection points of 1 MeV tritons and the plasma facing wall are visualized in the vacuum vessel of Large Helical Device (LHD) with the divertor plates by the virtual-reality (VR) system. The trajectory of the energetic triton is evaluated by …

Autoren:
Hiroaki Ohtani, Suguru Masuzaki, Kunihiro Ogawa, Seiji Ishiguro

15.10.2021 | Regular Paper

Numerical investigation on thermal hydraulic performance of supercritical LNG in PCHEs with straight, zigzag, and sinusoidal channels

Printed circuit heat exchanger (PCHE) has semi-circular micro-channels with high thermal performance and is widely used in the oil and gas industry, refrigeration, and other fields. PCHE is seen as the most promising technology in LNG-floating …

Autoren:
Jinxing Fan, Eunseop Yeom

13.10.2021 | Regular Paper

Dynamic behavior of water droplets impinging on a heated cylinder with various diameter ratios

In this study, the dynamic characteristics of water droplets impinging on a heated cylinder were investigated using a high-speed camera regarding the diameter ratios between droplet and cylinder. Water droplets generated by a needle in the range …

Autor:
Dong Kim

13.10.2021 | Regular Paper

Visual analytics of genealogy with attribute-enhanced topological clustering

Clustering is able to present a brief illustration for families of interest and patterns of significance within large-scale genealogical datasets. In the traditional clustering methods, topological features are mostly taken for summarizing and …

Autoren:
Ling Sun, Xiang Zhang, Xiaan Pan, Yuhua Liu, Wanghao Yu, Ting Xu, Fang Liu, Weifeng Chen, Yigang Wang, Weihua Su, Zhiguang Zhou

12.10.2021 | Regular Paper

OFExplorer: multi-facetted visual analysis of ocean front

The sea-surface temperature (SST) front is a narrow transition zone where the temperature changes dramatically and the stability of water body decreases. SST front is one of the typical mesoscale phenomena in the ocean. It is an important factor …

Autoren:
Cui Xie, Jian Song, Junyu Dong