Influence of vortex generator dimensions on film cooling efficiency

• Autorzy: Larbia Mohammed , Boualem Khadidja , Kerrouzb Siham , Kouchiha Fatima Benali , Yahiaoui Tayeb , Azzi Abbes

Identyfikatory

DOI

10.24425/ather.2024.152009

• Języki publikacji: EN

Abstrakty

EN

Enhancements in gas turbine blade cooling techniques, such as film cooling, have significantly advanced the aerothermal effi-ciency of turbines, especially in transportation sectors like aeronautics and automotive industries. This study aims to enhance turbine blade cooling by incorporating an obstruction at the jet exit. The vortex generator angle has been modified to 25°, 45°, 60°, 90° and 110°. These five designs were assessed in comparison to the conventional cylindrical hole configurations. Two injection ratios (M = 0.25, and M = 0.5) were studied within the ANSYS CFX 16 software, utilizing the finite volume method to solve the average Reynolds equations and the energy equation. The findings show qualitative alignment with experimental data for the base scenario, indicating that the vortex generator angle notably amplifies film cooling effectiveness. Typically, the vortex generator configured at 90° exhibits a stronger mixing capability compared to the other cases and cylindrical design.

Słowa kluczowe

EN

film cooling efficiency; vortex generator angle; vortex structures; area weighted film cooling

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2024
• Tom: Vol. 45, no. 4
• Strony: 197--203
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Larbia Mohammed

• University of Sciences and Technology of Oran - Mohammed Boudiaf, P.O. Box 1505, El-M’Naouer, 31000, Oran, Algeria

autor

Boualem Khadidja

• University of Relizane, Algeria

autor

Kerrouzb Siham

• University of Relizane, Algeria

autor

Kouchiha Fatima Benali

• University of Sciences and Technology of Oran - Mohammed Boudiaf, P.O. Box 1505, El-M’Naouer, 31000, Oran, Algeria

autor

Yahiaoui Tayeb

• University of Sciences and Technology of Oran - Mohammed Boudiaf, P.O. Box 1505, El-M’Naouer, 31000, Oran, Algeria

autor

Azzi Abbes

• University of Sciences and Technology of Oran - Mohammed Boudiaf, P.O. Box 1505, El-M’Naouer, 31000, Oran, Algeria

Bibliografia

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