| Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente |
| public:modeles:rotor_08:accueil [2023/03/19 17:55] – ikrambeghdadi | public:modeles:rotor_08:accueil [2023/04/05 09:04] (Version actuelle) – modification externe 127.0.0.1 |
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| **[[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|Git project]]** | **[[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|Git project]]** |
| </modal> | </modal> |
| ===== Original model ===== | ===== About ===== |
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| Rotor 8 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 8 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. |
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| * Original technical report [(cite:osborn1973design>Osborn. «Performance of a single-stage transonic compressor with a blade-tip solidity of 1.5 and comparison with 1.3- and 1.7-solidity stage » 1973. {{ https://ntrs.nasa.gov/citations/19740002621|pdf}})]: <code>@TechReport{osborn1973design, | * Original technical report [(cite:osborn1973design>)]: <code>@TechReport{osborn1973design, |
| author = {Osborn, Walter M. and Urasek, Donald C. and Moore, R. D.}, | author = {Osborn, Walter M. and Urasek, Donald C. and Moore, R. D.}, |
| date = {1973}, | date = {1973}, |
| <caption>Fig1. https://ntrs.nasa.gov/citations/19740002621 p.67 </caption> | <caption>Fig1. https://ntrs.nasa.gov/citations/19740002621 p.67 </caption> |
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| <callout type="info" icon="true" title="Useful documents"> | <callout type="info" icon="true" title="Useful documents"> |
| * [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|downloadable models]] (Git project) | * [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|downloadable models]] (Git project) |
| * PDF of the NASA report : {{ :public:modeles:rotor_8:rotor8.pdf |}} | * {{ :public:modeles:rotor_8:rotor8.pdf | NASA technical report}} (.pdf) |
| * CSV file of the blade geometry : {{ :public:modeles:rotor_8:rotor8_original.csv |}} utilisable en entrée de OpenMCAD[(cite:Kojtych_2022_gene_aubes>Kojtych S., Batailly A. «OpenMCAD, an open blade generator: from Multiple-Circular-Arc profiles to Computer-Aided Design model» 2022. {{ https://hal.science/hal-03923093|code en libre accès}})] pour générer l'aube de référence | * {{ :public:modeles:rotor_8:rotor8_original.csv | geometrical parameters file}} (.csv), usable as input of OpenMCAD[(cite:Kojtych_2022_gene_aubes>Kojtych S., Batailly A. «OpenMCAD, an open blade generator: from Multiple-Circular-Arc profiles to Computer-Aided Design model» 2022. {{ https://hal.science/hal-03923093|open source code}})] to generate reference blade models. |
| </callout> | </callout> |
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| ===== Reference blade ===== | ===== Reference blade ===== |
| The **reference blade** is defined with multiple-circular arc profiles[(cite:Crouse_1969_computer)] given in the original NASA report[(cite:osborn1973design)]. Corresponding models are computed with the open-source code OpenMCAD[(cite:Kojtych_2022_gene_aubes)]. | The **reference blade** is defined with multiple-circular arc profiles[(cite:Crouse_1969_computer)] given in the original NASA report[(cite:osborn1973design)]. Corresponding models are computed with the open-source code OpenMCAD[(cite:Kojtych_2022_gene_aubes)]. |
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| ===== Geometry ===== | ==== Geometry ==== |
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| The geometry of rotor 8 is described in the [[https://ntrs.nasa.gov/citations/19740002621|original NASA report]] by the following tables. The length are in centimeters and the angles in degrees. | The geometry of rotor 8 is described in the [[https://ntrs.nasa.gov/citations/19740002621|original NASA report]] by the following tables. The length are in centimeters and the angles in degrees. |
| {{ :public:modeles:rotor_8:gene_aubes_nasa_geom_rotor8.png?400 |}} | {{ :public:modeles:rotor_8:gene_aubes_nasa_geom_rotor8.png?400 |}} |
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| ===== Aerodynamic design ===== | ==== Aerodynamic design ==== |
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| ^ ^ unit ^ values ^ | ^ ^ unit ^ value ^ |
| ^ pressure ratio | [-] | 1.75 | | ^ pressure ratio | [-] | 1.75 | |
| ^ mass flow | [kg/s] | 29.5 | | ^ mass flow | [kg/s] | 29.5 | |
| ^ rotative speed | [rad/s] | 1686 | | ^ rotative speed | [rad/s] | 1686 | |
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| ===== Material properties ===== | ==== Material properties ==== |
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| The material of rotor 8 is not defined in the original NASA report. A generic titanium Ti-6Al-4V is considered: | The material of rotor 8 is not defined in the original NASA report. A generic titanium Ti-6Al-4V is considered: |
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| ^ ^ unité ^ valeurs ^ | ^ ^ unit ^ value ^ |
| ^ alloy | [-] | Ti-6Al-4V | | ^ alloy | [-] | Ti-6Al-4V | |
| ^ Young's modulus | [GPa] | 108 | | ^ Young's modulus | [GPa] | 108 | |
| </col> | </col> |
| <col md="4"> | <col md="4"> |
| {{:public:modeles:rotor_08:8_intra.png?200|}} | {{ :public:modeles:rotor_08:8_intra.png?200 |}} |
| <caption>pressure side</caption> | <caption>pressure side</caption> |
| </col> | </col> |
| <col md="4"> | <col md="4"> |
| {{:public:modeles:rotor_08:8_extra.png?200|}} | {{ :public:modeles:rotor_08:8_extra.png?200 |}} |
| <caption>suction side</caption> | <caption>suction side</caption> |
| </col> | </col> |
| <callout type="info" icon="true" title="Documents utiles"> | <callout type="info" icon="true" title="Documents utiles"> |
| * [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|modèles téléchargeables]] (lien vers projet Git) | * [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor08|modèles téléchargeables]] (lien vers projet Git) |
| * PDF du rapport de la NASA : {{ :public:modeles:rotor_8:rotor8.pdf |}} | * {{ :public:modeles:rotor_8:rotor8.pdf | rapport technique original}} de la NASA (.pdf) |
| * Fichier CSV de la géométrie : {{ :public:modeles:rotor_8:rotor8_original.csv |}} utilisable en entrée de OpenMCAD[(cite:Kojtych_2022_gene_aubes>Kojtych S., Batailly A. «OpenMCAD, an open blade generator: from Multiple-Circular-Arc profiles to Computer-Aided Design model» 2022. {{ https://hal.science/hal-03923093|code en libre accès}})] pour générer l'aube de référence | * {{ :public:modeles:rotor_8:rotor8_original.csv | fichier de paramètres géométriques}} (.csv), utilisable en entrée de OpenMCAD[(cite:Kojtych_2022_gene_aubes>)] pour générer l'aube de référence |
| </callout> | </callout> |
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| L'**aube de référence** est définie par des profils de type arcs circulaires multiples[(cite:Crouse_1969_computer>Crouse //et al//. «A computer program for composing compressor blading from simulated circular-arc elements on conical surfaces » 1969. NASA-TN-D-5437. {{ https://ntrs.nasa.gov/citations/19690027504|pdf}})], donnés dans le rapport technique original de la NASA[(cite:osborn1973design)]. Les modèles associés sont obtenus avec le code en libre accès OpenMCAD[(cite:Kojtych_2022_gene_aubes)]. | L'**aube de référence** est définie par des profils de type arcs circulaires multiples[(cite:Crouse_1969_computer>Crouse //et al//. «A computer program for composing compressor blading from simulated circular-arc elements on conical surfaces » 1969. NASA-TN-D-5437. {{ https://ntrs.nasa.gov/citations/19690027504|pdf}})], donnés dans le rapport technique original de la NASA[(cite:osborn1973design)]. Les modèles associés sont obtenus avec le code en libre accès OpenMCAD[(cite:Kojtych_2022_gene_aubes)]. |
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| ===== Géométrie ===== | ==== Géométrie ==== |
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| La géométrie du rotor 8 est décrite dans le [[https://ntrs.nasa.gov/citations/19740002621|rapport d'origine de la NASA]] par les tableaux suivants. Les grandeurs sont en centimètres et en degrés. | La géométrie du rotor 8 est décrite dans le [[https://ntrs.nasa.gov/citations/19740002621|rapport d'origine de la NASA]] par les tableaux suivants. Les grandeurs sont en centimètres et en degrés. |
| {{ :public:modeles:rotor_8:gene_aubes_nasa_geom_rotor8.png?400 |}} | {{ :public:modeles:rotor_8:gene_aubes_nasa_geom_rotor8.png?400 |}} |
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| ===== Caractéristiques aérodynamiques ===== | ==== Caractéristiques aérodynamiques ==== |
| ^ ^ unités ^ valeurs ^ | ^ ^ unités ^ valeurs ^ |
| ^ taux de compression | [-] | 1,75 | | ^ taux de compression | [-] | 1,75 | |
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| ===== Propriétés matériau ===== | ==== Propriétés matériau ==== |
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| Le matériau original du rotor 8 n'est pas défini dans le rapport de la NASA. Un alliage de titane Ti-6Al-4v est considéré: | Le matériau original du rotor 8 n'est pas défini dans le rapport de la NASA. Un alliage de titane Ti-6Al-4v est considéré: |
| </col> | </col> |
| <col md="4"> | <col md="4"> |
| {{:public:modeles:rotor_08:8_intra.png?200|}} | {{ :public:modeles:rotor_08:8_intra.png?200 |}} |
| <caption>intrados</caption> | <caption>intrados</caption> |
| </col> | </col> |
| <col md="4"> | <col md="4"> |
| {{:public:modeles:rotor_08:8_extra.png?200|}} | {{ :public:modeles:rotor_08:8_extra.png?200 |}} |
| <caption>extrados</caption> | <caption>extrados</caption> |
| </col> | </col> |
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| ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ | ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ |
| | 1 | 1B | 1779,57 | 283,228 | | | 1 | 1F | 1779,57 | 283,228 | |
| | 2 | 2B | 6407,97 | 1019,86 | | | 2 | 2F | 6407,97 | 1019,86 | |
| | 3 | 1T | 8746,82 | 1392,1 | | | 3 | 1T | 8746,82 | 1392,1 | |
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| ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ | ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ |
| | 1 | 1B | 1778,69 | 283,088 | | | 1 | 1F | 1778,69 | 283,088 | |
| | 2 | 2B | 6413,56 | 1020,75 | | | 2 | 2F | 6413,56 | 1020,75 | |
| | 3 | 1T | 8747,83 | 1392,26 | | | 3 | 1T | 8747,83 | 1392,26 | |
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| ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ | ^ Mode ^ Type ^ Pulsation propre (rad/sec) ^ Fréquence propre (Hz) ^ |
| | 1 | 1B | 1778,75 | 283,098 | | | 1 | 1F | 1778,75 | 283,098 | |
| | 2 | 2B | 6416,20 | 1021,17 | | | 2 | 2F | 6416,20 | 1021,17 | |
| | 3 | 1T | 8750,91 | 1392,75 | | | 3 | 1T | 8750,91 | 1392,75 | |
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