On visualizing continuous turbulence scales

Simple item page
dc.contributor.authorLiu, Xiaopei
dc.contributor.authorMishra, Maneesh
dc.contributor.authorSkote, Martin
dc.contributor.authorFu, Chi‐Wing
dc.date.accessioned2018-12-11T12:26:05Z
dc.date.available2018-12-11T12:26:05Z
dc.date.issued2018-08-06
dc.description.abstractTurbulent flows are multi‐scale with vortices spanning a wide range of scales continuously. Due to such complexities, turbulence scales are particularly difficult to analyse and visualize. In this work, we present a novel and efficient optimization‐based method for continuous‐scale turbulence structure visualization with scale decomposition directly in the Kolmogorov energy spectrum. To achieve this, we first derive a new analytical objective function based on integration approximation. Using this new formulation, we can significantly improve the efficiency of the underlying optimization process and obtain the desired filter in the Kolmogorov energy spectrum for scale decomposition. More importantly, such a decomposition allows a ‘continuous‐scale visualization’ that enables us to efficiently explore the decomposed turbulence scales and further analyse the turbulence structures in a continuous manner. With our approach, we can present scale visualizations of direct numerical simulation data sets continuously over the scale domain for both isotropic and boundary layer turbulent flows. Compared with previous works on multi‐scale turbulence analysis and visualization, our method is highly flexible and efficient in generating scale decomposition and visualization results. The application of the proposed technique to both isotropic and boundary layer turbulence data sets verifies the capability of our technique to produce desirable scale visualization results.en_UK
dc.identifier.citationXiaopei Liu, Maneesh Mishra, Martin Skote and Chi‐Wing Fu. On visualizing continuous turbulence scales. Computer Graphics Forum, Volume 31, Issue 1, 2019, pp. 300-315en_UK
dc.identifier.cris21461814
dc.identifier.issn0167-7055
dc.identifier.urihttps://doi.org/10.1111/cgf.13532
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13718
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectvolume visualizationen_UK
dc.subjectHuman-centered computing∼Scientific visualizationen_UK
dc.subjectflow visualizationen_UK
dc.subjectvisualizationen_UK
dc.subjectscientific visualizationen_UK
dc.titleOn visualizing continuous turbulence scalesen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
On_visualizing_continuous_turbulence_scales-2018.pdf
Size:
2.74 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)