The irregular shapes that glaze ice may grow into while accreting over the surface of an aircraft represent a major difficulty in the numerical simulation of long periods of in-flight icing. In the framework of Arbitrary Lagrangian-Eulerian (ALE) formulations, a mesh movement scheme is presented, in which frame and elasticity analogies are loosely coupled. The resulting deformed mesh preserves the quality of elements, especially in the near-wall region, where accurate prediction of heat flux and shear stresses are required. The proposed scheme handles mesh movement in a computationally efficient manner by localizing the mesh deformation. Numerical results of ice shapes and the corresponding aerodynamic coefficients are compared with the experimental results.
|Publication status||Published - 13 Jun 2011|
|Event||SAE 2011 International Conference on Aircraft and Engine Icing and Ground Deicing - Chicago, IL, United States|
Duration: 13 Jun 2011 → 17 Jun 2011
|Conference||SAE 2011 International Conference on Aircraft and Engine Icing and Ground Deicing|
|Period||13/06/11 → 17/06/11|
- in flight icing
- aerodynamic degredation