2023
DOI: 10.1007/s00348-023-03654-3
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Vortex force decomposition—forces associated with individual elements of a vorticity field

Abstract: The impulse theory used to calculate the force from a vorticity distribution in two-dimensional, incompressible flow, is re-cast with the aim of approximating, to a first order, the forces generated by a specific flow feature, such as a free vortex passing by an object. To achieve this, the force acting on the body is split up into several core contributions. The first component arises from the time variation of the body’s boundary layer. The second is generated by the advection of any free vorticity located i… Show more

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Cited by 2 publications
(1 citation statement)
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“…Limacher et al (2018) derived the added mass force term through impulse theory and later in Limacher et al (2019), they validated it against PIV data on a two-dimensional flow around a cylinder accelerated from rest. Meanwhile, Gehlert and Babinsky (2019) and Gehlert et al (2023) successfully recovered and validated the lift and drag from PIV data on accelerating and rotating cylinder flows using the impulse method. Here the added mass forces are linked to a vortex sheet by applying the rotational and translational boundary conditions to the cylinder surface.…”
Section: Introductionmentioning
confidence: 94%
“…Limacher et al (2018) derived the added mass force term through impulse theory and later in Limacher et al (2019), they validated it against PIV data on a two-dimensional flow around a cylinder accelerated from rest. Meanwhile, Gehlert and Babinsky (2019) and Gehlert et al (2023) successfully recovered and validated the lift and drag from PIV data on accelerating and rotating cylinder flows using the impulse method. Here the added mass forces are linked to a vortex sheet by applying the rotational and translational boundary conditions to the cylinder surface.…”
Section: Introductionmentioning
confidence: 94%