What is it about?
We combine the advantages, and overcome the limitations, of two different techniques used to calculate the aerodynamic force using flow-field data. This new method also leads to the formulation of a neat far-field expression of the aerodynamic force, valid for unsteady, viscous and compressible flows.
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Why is it important?
Inaccuracies frequently reported when using Lamb-vector-based force methods are eliminated by the new approach, which also allows the computation of lift and lift-induced drag, usually not obtained using thermodynamic-based methods. Our combined thermodynamic/Lamb-vector approach also provides a new far-field expression of the pressure forces acting on a body immersed in a viscous and compressible fluid, a starting point for new force decomposition techniques.
Read the Original
This page is a summary of: A unified thermodynamic/Lamb-vector-based analysis of the aerodynamic force, Physics of Fluids, September 2023, American Institute of Physics, DOI: 10.1063/5.0164384.
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