Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente Prochaine révisionLes deux révisions suivantes |
public:modeles:rotor_04:accueil [2023/03/19 21:10] – [Aerodynamic design] ikrambeghdadi | public:modeles:rotor_04:accueil [2023/03/28 09:24] – [Modifier - Pane] solenekojtych |
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* [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor04|downloadable models]] (Git project) | * [[https://gitlab.lava.polymtl.ca/depots_publics/modeles/catalogue_aubes/-/tree/master/rotor04|downloadable models]] (Git project) |
* {{ :public:modeles:rotor_4:rotor4.pdf | NASA technical report}} (.pdf) | * {{ :public:modeles:rotor_4:rotor4.pdf | NASA technical report}} (.pdf) |
* {{ :public:modeles:rotor_4:rotor4_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|code en libre accès}})] to generate reference blade models. | * {{ :public:modeles:rotor_4:rotor4_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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The **reference blade** is defined with multiple-circular arc profiles[(cite:Crouse_1969_computer)] given in the original NASA report[(cite:janetzke1972design)]. 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:janetzke1972design)]. 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 4 is described in the [[https://ntrs.nasa.gov/citations/19720011348|original NASA report]] by the following tables. The length are in inches and the angles in degrees. | The geometry of rotor 4 is described in the [[https://ntrs.nasa.gov/citations/19720011348|original NASA report]] by the following tables. The length are in inches and the angles in degrees. |
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===== Aerodynamic design ===== | ==== Aerodynamic design ==== |
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^ ^ unit ^ value ^ | ^ ^ unit ^ value ^ |
^ rotative speed | [rad/s] | 1675.51 | | ^ rotative speed | [rad/s] | 1675.51 | |
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===== Material properties ===== | ==== Material properties ==== |
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Rotor 4 is made of a 200-grade maraging steel | Rotor 4 is made of a 200-grade maraging steel |
===== Initial blade ===== | ===== Initial blade ===== |
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The **initial blade** is defined with in-house LAVA parameters[(cite:Kojtych_2022_Methodology>Kojtych S. //et al//. “Methodology for the Redesign of Compressor Blades Undergoing Nonlinear Structural Interactions: Application to Blade-Tip /Casing Contacts" 2022. Journal of Engineering for Gas Turbines and Power, Vol.145, No.5. {{ https://hal.archives-ouvertes.fr/hal-03795257|pdf}})] obtained from CAD model of the reference vane. The initial blade is conventionally used as a starting point in optimization procedures; its geometry is similar to that of the reference blade. | The **initial blade** is defined with in-house LAVA parameters[(cite:Kojtych_2022_Methodology)] computed from the reference blade CAD model. The initial blade is usually used as starting point for an optimization process. Its geometry is similar to the one of the reference blade. |
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===== Géométrie ===== | ==== Géométrie ==== |
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La géométrie du rotor 4 est décrite dans le [[https://ntrs.nasa.gov/citations/19720011348|rapport d'origine de la NASA]] par les tableaux suivants. Les grandeurs sont en pouces et en degrés. | La géométrie du rotor 4 est décrite dans le [[https://ntrs.nasa.gov/citations/19720011348|rapport d'origine de la NASA]] par les tableaux suivants. Les grandeurs sont en pouces et en degrés. |
{{ :public:modeles:rotor_4:gene_aubes_nasa_geom_rotor4.png?400 |}} | {{ :public:modeles:rotor_4:gene_aubes_nasa_geom_rotor4.png?400 |}} |
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===== Caractéristiques aérodynamiques ===== | ==== Caractéristiques aérodynamiques ==== |
^ ^ unités ^ valeurs ^ | ^ ^ unités ^ valeurs ^ |
^ taux de compression | [-] | 1,8 | | ^ taux de compression | [-] | 1,8 | |
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===== Propriétés matériau ===== | ==== Propriétés matériau ==== |
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Le matériau original du rotor 4 est défini dans le rapport de la NASA. Un acier maraging de grade 200 est considéré: | Le matériau original du rotor 4 est défini dans le rapport de la NASA. Un acier maraging de grade 200 est considéré: |
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</tabs> | |
</pane> | </pane> |
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| </tabs> |
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