3 papers
physics.flu-dyn2017
Minimum-domain impulse theory for unsteady aerodynamic force
Linlin Kang, Luoqin Liu, Weidong Su +1
We extend the impulse theory for unsteady aerodynamics, from its classic global form to finite-domain formulation then to minimum-domain form, and from incompressible to compressib…
physics.flu-dyn2016
Zonal structure of unbounded external-flow and aerodynamics
Luoqin Liu, Linlin Kang, Jiezhi Wu
This paper starts from the far-field behaviours of velocity field in externally-unbounded flow. We find that the well-known algebraic decay of disturbance velocity as derived kinem…
physics.flu-dyn2016
Lift and drag in three-dimensional steady viscous and compressible flow
Luoqin Liu, Jiezhi Wu, Weidong Su +1
In a recent paper, Liu, Zhu and Wu (2015, {\it J. Fluid Mech.} {\bf 784}: 304) present a force theory for a body in a two-dimensional, viscous, compressible and steady flow. In thi…