A Modified Double Gyre with Ground Truth Hyperbolic Trajectories for Flow Visualization
A Modified Double Gyre with Ground Truth Hyperbolic Trajectories for Flow Visualization
复制标题
用于流动可视化的具有地面实况双曲线轨迹的改进双环流
DOI:
10.1111/cgf.14183
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发表时间:
2020
影响因子:
2.5
通讯作者:
H Theisel
中科院分区:
文献类型:
--
作者:
S. Wolligandt;T. Wilde;C. Rössl;H Theisel
The model of aDouble Gyreflow by Shadden et al. is a standard benchmark data set for the computation of hyperbolic Lagrangian Coherent Structures (LCS) in flow data. While structurally extremely simple, it generates hyperbolic LCS of arbitrary complexity. Unfortunately, theDouble Gyredoes not come with a well‐defined ground truth: the location of hyperbolic LCS boundaries can only be approximated by numerical methods that usually involve the gradient of the flow map. We present a new benchmark data set that is a small but carefully designed modification of theDouble Gyre, which comes with ground truth closed‐form hyperbolic trajectories. This allows for computing hyperbolic LCS boundaries by a simple particle integration without the consideration of the flow map gradient. We use these hyperbolic LCS as a ground truth solution for testing an existing numerical approach for extracting hyperbolic trajectories. In addition, we are able to construct hyperbolic LCS curves that are significantly longer than in existing numerical methods.
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DOI:
10.1109/tvcg.2012.131
发表时间:
2013-03-01
影响因子:
5.2
作者:
Ueffinger, Markus;Sadlo, Filip;Ertl, Thomas
通讯作者:
Ertl, Thomas
DOI:
10.1007/978-3-642-15014-2_13
发表时间:
2011
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1137/16m1091496
发表时间:
2016-10
期刊:
SIAM J. Appl. Math.
影响因子:
--
作者:
G. Froyland;N. Santitissadeekorn
通讯作者:
G. Froyland;N. Santitissadeekorn
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
I. Rypina;S. E. Scott;L. Pratt;Michael G. Brown
通讯作者:
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