Grid-Generation Algorithms for Complex Glaze-Ice Shapes Reynolds-Averaged Navier–Stokes Simulations
| Autor: | Eric Laurendeau, K. Hasanzadeh, Ion Paraschivoiu |
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| Rok vydání: | 2016 |
| Předmět: |
020301 aerospace & aeronautics
Curvilinear coordinates Discretization business.industry Aerospace Engineering 02 engineering and technology Computational fluid dynamics Curvature 01 natural sciences 010305 fluids & plasmas 0203 mechanical engineering Elliptic partial differential equation Mesh generation 0103 physical sciences Poisson's equation business Glaze ice Algorithm Mathematics |
| Zdroj: | AIAA Journal. 54:847-860 |
| ISSN: | 1533-385X 0001-1452 |
| DOI: | 10.2514/1.j054076 |
| Popis: | The paper presents the developments of novel mesh generation algorithms over complex glaze-ice shapes containing multicurvature ice-accretion geometries, such as single/double ice horns. The twofold approaches tackle surface geometry discretization as well as field mesh generation. First, an adaptive curvilinear curvature control algorithm is constructed, solving a one-dimensional elliptic partial differential equation with periodic source terms. This method controls the arc length grid spacing, so that high convex and concave curvature regions around ice horns are appropriately captured, and is shown to effectively treat the grid shock problem. Second, a novel blended method is developed by defining combinations of source terms with two-dimensional elliptic equations. The source terms include two common control functions, Sorenson and Spekreijse, and an additional third source term to improve orthogonality. This blended method is shown to be very effective for improving grid quality metrics for complex g... |
| Databáze: | OpenAIRE |
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