@article{
 title = {Large- and small-amplitude shock-wave oscillations over axisymmetric bodies in high-speed flow},
 type = {article},
 year = {2021},
 keywords = {high-speed flow,shock waves},
 volume = {913},
 publisher = {Cambridge University Press},
 id = {7bce9135-4234-393a-a5ac-6dfd3937748d},
 created = {2021-07-12T05:08:41.165Z},
 accessed = {2021-07-11},
 file_attached = {true},
 profile_id = {6476e386-2170-33cc-8f65-4c12ee0052f0},
 group_id = {5a9f751c-3662-3c8e-b55d-a8b85890ce20},
 last_modified = {2021-07-12T10:41:10.827Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {false},
 hidden = {false},
 citation_key = {sasidharan:jfm:2021},
 private_publication = {false},
 abstract = {The phenomena of self-sustained shock-wave oscillations over conical bodies with a blunt axisymmetric base subject to uniform high-speed flow are investigated in a hypersonic wind tunnel at Mach number . The flow and shock-wave dynamics is dictated by two non-dimensional geometric parameters presented by the three length scales of the body, two of which are associated with the conical forebody and one with the base. Time-resolved schlieren imagery from these experiments reveals the presence of two disparate states of shock-wave oscillations in the flow, and allows for the mapping of unsteadiness boundaries in the two-parameter space. Physical mechanisms are proposed to explain the oscillations and the transitions of the shock-wave system from steady to oscillatory states. In comparison with the canonical single-parameter problem of shock-wave oscillations over spiked-blunt bodies reported in literature, the two-parameter nature of the present problem introduces distinct elements to the flow dynamics.},
 bibtype = {article},
 author = {Sasidharan, Vaisakh and Duvvuri, Subrahmanyam},
 doi = {10.1017/JFM.2021.115},
 journal = {Journal of Fluid Mechanics}
}

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