Local and global pairing instabilities of two interlaced helical vortices
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DOI: 10.1017/jfm.2018.904
Abstract: We investigate theoretically and experimentally the stability of two interlaced helical vortices with respect to displacement perturbations having wavelengths that are large compared to the size of the vortex cores. First, existing theoretical results are… read more here.
Keywords: two interlaced; interlaced helical; helical vortices; helix ... See more keywords
Large-eddy simulation of temporally developing double helical vortices
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DOI: 10.1017/jfm.2018.910
Abstract: This paper investigates the transient regime and turbulent wake characteristics of temporally developing double helical vortices via high-fidelity large-eddy simulation (LES) for circulation Reynolds numbers in the range $Re_{\unicode[STIX]{x1D6E4}}=7000{-}70\,000$ , vortex-core radii between $r_{c}=0.06R$ and… read more here.
Keywords: large eddy; temporally developing; vortex; developing double ... See more keywords