| Titre : |
The computation of turbulent surface wakes |
| Type de document : |
texte imprimé |
| Auteurs : |
Bellil, Mohamed, Auteur ; Launder, B.E., Directeur de thèse |
| Editeur : |
Manchester : [s.n.] |
| Année de publication : |
1991 |
| Importance : |
81 f. |
| Présentation : |
ill. |
| Format : |
30 cm. |
| Note générale : |
Mémoire de Magister: Génie Mécanique: University of Manchester : 1991
Bibliogr. f. 82 - 89 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Mechanical -- model solution procedure |
| Index. décimale : |
M003891 |
| Résumé : |
The dissertation reports a numerical study of the surface wake using two turbulence models, namely: the standard K-ε model and Rodi's ASM model.
The computed data were used to compare the performance of these models to predict the LDA surface wake data measured by Casteleyn (1990).
The mean velocity field is reasonably predicted by the two models.
On the other hand the normal reynolds stresses in the near field are underpredicted by the two models.
In the far field the streamwise stress is quite well predicted by the ASM model.
Also the K-ε model is in close agreement with the LDA measurements.
However, the cross-stream normal stresses are underpredicted by the two models.
The ASM model performs comparatively well in the normal stress field.
Finally, the spreading rate parameter is underestimated by both turbulence models. |
The computation of turbulent surface wakes [texte imprimé] / Bellil, Mohamed, Auteur ; Launder, B.E., Directeur de thèse . - Manchester : [s.n.], 1991 . - 81 f. : ill. ; 30 cm. Mémoire de Magister: Génie Mécanique: University of Manchester : 1991
Bibliogr. f. 82 - 89 Langues : Anglais ( eng)
| Mots-clés : |
Mechanical -- model solution procedure |
| Index. décimale : |
M003891 |
| Résumé : |
The dissertation reports a numerical study of the surface wake using two turbulence models, namely: the standard K-ε model and Rodi's ASM model.
The computed data were used to compare the performance of these models to predict the LDA surface wake data measured by Casteleyn (1990).
The mean velocity field is reasonably predicted by the two models.
On the other hand the normal reynolds stresses in the near field are underpredicted by the two models.
In the far field the streamwise stress is quite well predicted by the ASM model.
Also the K-ε model is in close agreement with the LDA measurements.
However, the cross-stream normal stresses are underpredicted by the two models.
The ASM model performs comparatively well in the normal stress field.
Finally, the spreading rate parameter is underestimated by both turbulence models. |
|
Ajouter le résultat dans votre panier
Visionner les documents numériques
Faire une suggestion Affiner la rechercheThe computation of turbulent surface wakes (1991)
