| Autor: |
Luis Santos, Antonio Batista de Jesus, Sutikno Wirogo, Ramon Papa, Guilherme Lara Oliveira, Luiz Tobaldini |
| Rok vydání: |
2004 |
| Předmět: |
|
| Zdroj: |
42nd AIAA Aerospace Sciences Meeting and Exhibit. |
| DOI: |
10.2514/6.2004-566 |
| Popis: |
The present work compares the effects on accuracy of different grid generation choices and practices with respect to collection efficiency calculation on a typical aircraft configuration. It is known that hexahedral mesh es provide more accurate and better representation of the surface gradients, but on the other hand, requires more expertise and effort. This paper compares hexahedral, tetrahedral and hybrid (tetra + prism) meshes with respect to collection. Results indica te that the impingement region limits are rather insensitive to mesh choice, but the maximum and averaged collection can vary significantly. Some general levels of equivalency are proposed based on the experiments performed for the DLR -F4 configuration. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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