Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7196515 | Theoretical and Applied Mechanics Letters | 2017 | 5 Pages |
Abstract
We extend the impulse theory for unsteady aerodynamics, from its classic global form to finite-domain formulation, then to a minimum-domain version for discrete wake. Each extension has been confirmed numerically. The minimum-domain theory indicates that the numerical finding of Li and Lu (2012) is of general significance: The entire force is completely determined by only the time rate of impulse of those vortical structures still connecting to the body, along with the Lamb-vector integral thereof that captures the contribution of all the rest disconnected vortical structures.
Related Topics
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Mechanical Engineering
Authors
Linlin Kang, Luoqin Liu, Weidong Su, Jiezhi Wu,