[
    {
        "id": "authors:n166d-x1p51",
        "collection": "authors",
        "collection_id": "n166d-x1p51",
        "cite_using_url": "https://authors.library.caltech.edu/records/n166d-x1p51",
        "type": "conference_item",
        "title": "Starting vortices generated by arbitrary bodies with sharp edges",
        "author": [
            {
                "family_name": "Sader",
                "given_name": "John E.",
                "orcid": "0000-0002-7096-0627",
                "clpid": "Sader-J-E"
            },
            {
                "family_name": "Hinton",
                "given_name": "Edward M.",
                "orcid": "0000-0002-2204-1204"
            },
            {
                "family_name": "Hou",
                "given_name": "Wei",
                "orcid": "0000-0001-8023-6395",
                "clpid": "Hou-Wei"
            },
            {
                "family_name": "Leonard",
                "given_name": "Anthony",
                "clpid": "Leonard-A"
            },
            {
                "family_name": "Colonius",
                "given_name": "Tim",
                "orcid": "0000-0003-0326-3909",
                "clpid": "Colonius-T"
            },
            {
                "family_name": "Pullin",
                "given_name": "Dale I.",
                "orcid": "0009-0007-5991-2863",
                "clpid": "Pullin-D-I"
            }
        ],
        "abstract": "<p>The sudden (or start up) motion of a solid body immersed in a viscous fluid can generate vortices that are convected away from the body as the flow evolves. This vortex generation often provides a dominant contribution to the lift experienced by the body and, hence, its characterisation is essential in practice. The physical processes underlying this generation have been the subject of intensive research over the past century due to their importance in aerodynamics (Prandtl, 1921; Pullin &amp; Wang, 2004; Jones &amp; Babinsky, 2010).</p>\n<p>Here, we explore the nature of the starting vortices generated by general motion of an arbitrary body with any number of sharp edges, e.g., a flat plate or a Joukowski aerofoil. An inviscid theory is formulated by invoking the Kutta condition at the sharp edges and making use of the Birkhoff-Rott equation for dynamics of the vortex sheet. The predictions of this inviscid theory are compared to high-fidelity direct numerical simulations (DNS) of the Navier-Stokes equations.</p>",
        "doi": "10.7907/n166d-x1p51",
        "publisher": "Australasian Fluid Mechanics Society",
        "publication_date": "2024-12"
    }
]