Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente | ||
public:modeles:rotor_14:accueil [2023/02/22 00:55] – ikrambeghdadi | public:modeles:rotor_14:accueil [2023/04/05 09:04] (Version actuelle) – modification externe 127.0.0.1 | ||
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<btn type=" | <btn type=" | ||
<modal id=" | <modal id=" | ||
- | **[[https:// | + | **[[https:// |
</ | </ | ||
- | ===== Original model ===== | + | ===== About ===== |
Rotor 14 is part of a research program to study the effects of blade row solidity on efficiency and stall margin of an axial-flow compressor rotor. It is one of a series of rotors designed to further study the effects of solidity : rotor 8 with a tip solidity of 1.5, rotor 12 with a tip solidity of 1.7 and rotor 14 with a tip solidity of 1.3. Tip solidity are being changed by varying the number of blades while maintaining the same velocity diagrams and flow path. These stages were designed such that the tip solidity of both the rotor and stator blades are the same. | Rotor 14 is part of a research program to study the effects of blade row solidity on efficiency and stall margin of an axial-flow compressor rotor. It is one of a series of rotors designed to further study the effects of solidity : rotor 8 with a tip solidity of 1.5, rotor 12 with a tip solidity of 1.7 and rotor 14 with a tip solidity of 1.3. Tip solidity are being changed by varying the number of blades while maintaining the same velocity diagrams and flow path. These stages were designed such that the tip solidity of both the rotor and stator blades are the same. | ||
- | * Original technical report [(cite: | + | * Original technical report [(cite: |
author | author | ||
date = {1972}, | date = {1972}, | ||
Ligne 30: | Ligne 30: | ||
- | + | <callout type=" | |
- | ===== Useful documents | + | |
* [[https:// | * [[https:// | ||
- | * PDF of the NASA report : {{ : | + | * {{ : |
- | * CSV file of the blade geometry : {{ : | + | * {{ : |
+ | </ | ||
- | ===== Geometry | + | |
+ | ===== Reference blade ===== | ||
+ | |||
+ | The **reference blade** is defined with multiple-circular arc profiles[(cite: | ||
+ | |||
+ | ==== Geometry | ||
The geometry of rotor 14 is described in the [[https:// | The geometry of rotor 14 is described in the [[https:// | ||
{{ : | {{ : | ||
- | ===== Aerodynamic design | + | ==== Aerodynamic design |
- | ^ ^ unit ^ values | + | ^ ^ unit ^ value ^ |
^ pressure ratio | [-] | 1.75 | | ^ pressure ratio | [-] | 1.75 | | ||
^ mass flow | ^ mass flow | ||
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^ rotative speed | [rad/ | ^ rotative speed | [rad/ | ||
- | ===== Material properties | + | ==== Material properties |
- | The original material of the rotor 14 is not defined in the NASA report. | + | The original material of the rotor 14 is not defined in the NASA report. |
- | Considered properties: 200-grade maraging steel : | + | ^ |
- | + | ||
- | ^ | + | |
^ alloy | [-] | 18-Ni-200-maraging | ^ alloy | [-] | 18-Ni-200-maraging | ||
^ Young' | ^ Young' | ||
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^ yield stress | ^ yield stress | ||
- | First three natural frequencies (with clamped root) for the mesh: | + | |
- | - <fc # | + | |
- | - <fc # | + | |
- | - <fc # | + | |
==== CAD model ==== | ==== CAD model ==== | ||
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</ | </ | ||
<col md=" | <col md=" | ||
- | {{: | + | {{ : |
< | < | ||
</ | </ | ||
<col md=" | <col md=" | ||
- | {{: | + | {{ : |
< | < | ||
</ | </ | ||
Ligne 96: | Ligne 96: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1018.5 | 162.1 | | + | | 1 | 1B | 1739.36 | 276.827 | |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 116: | Ligne 116: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1019.1 | 162.2 | + | | 1 | 1B |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 124: | Ligne 124: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1019.1 | + | | 1 | 1B |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 136: | Ligne 136: | ||
<btn type=" | <btn type=" | ||
<modal id=" | <modal id=" | ||
- | **[[https:// | + | **[[https:// |
</ | </ | ||
- | ===== Modèle original | + | ===== À propos |
Le rotor 14 fait partie d'un programme de recherche visant à étudier les effets de la solidité des rangées d' | Le rotor 14 fait partie d'un programme de recherche visant à étudier les effets de la solidité des rangées d' | ||
- | * Rapport technique original [(cite: | + | * Rapport technique original [(cite: |
author | author | ||
date = {1972}, | date = {1972}, | ||
Ligne 158: | Ligne 158: | ||
- | ===== Documents utiles | + | |
+ | <callout type=" | ||
* [[https:// | * [[https:// | ||
- | * PDF du rapport de la NASA : {{ : | + | * {{ : |
- | * Fichier CSV de la géométrie : {{ : | + | * {{ : |
+ | </ | ||
+ | |||
+ | |||
+ | ===== Aube de référence ===== | ||
+ | |||
+ | L' | ||
- | ===== Géométrie | + | ==== Géométrie ==== |
La géométrie du rotor 14 est décrite dans le [[https:// | La géométrie du rotor 14 est décrite dans le [[https:// | ||
Ligne 169: | Ligne 176: | ||
{{ : | {{ : | ||
- | ===== Caractéristiques aérodynamiques | + | ==== Caractéristiques aérodynamiques |
^ ^ unités | ^ ^ unités | ||
^ taux de compression | ^ taux de compression | ||
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^ vitesse de rotation | ^ vitesse de rotation | ||
- | ===== Propriétés matériau | + | ==== Propriétés matériau |
- | Le matériau original du rotor 14 n'est pas défini dans le rapport de la NASA. | + | Le matériau original du rotor 14 n'est pas défini dans le rapport de la NASA. Un acier maraging de grade 200 est considéré: |
- | + | ||
- | Propriétés considérées : un acier maraging de grade 200 : | + | |
^ | ^ | ||
Ligne 193: | Ligne 198: | ||
- | Fréquences des trois premiers modes (noeuds de la base encastrés) pour le maillage : | ||
- | - <fc # | ||
- | - <fc # | ||
- | - <fc # | ||
==== Modèle CAO ==== | ==== Modèle CAO ==== | ||
Ligne 206: | Ligne 207: | ||
</ | </ | ||
<col md=" | <col md=" | ||
- | {{: | + | {{ : |
< | < | ||
</ | </ | ||
<col md=" | <col md=" | ||
- | {{: | + | {{ : |
< | < | ||
</ | </ | ||
Ligne 222: | Ligne 223: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1018,5 | 162,1 | | + | | 1 | 1F | 1739,36 | 276,827 | |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 238: | Ligne 239: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1019,1 | 162,2 | + | | 1 | 1F |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 246: | Ligne 247: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1019,1 | + | | 1 | 1F | 1739,51 | 276,851 | |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
- | </ | ||
- | </ | ||
+ | </ | ||
+ | </ | ||
- public/modeles/rotor_14/accueil.1677045354.txt.gz
- Dernière modification : 2023/04/05 08:59
- (modification externe)