A Comparative Study of Film Cooling with Combined Impingement and Film Cooling
Publish place: Journal of Applied Fluid Mechanics، Vol: 16، Issue: 7
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
View: 103
This Paper With 16 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JAFM-16-7_007
تاریخ نمایه سازی: 27 خرداد 1402
Abstract:
In order to cool the gas turbine vane or blade and raise the operating temperature, two standard convective cooling methods are used: jet impingement cooling and film cooling. The current study uses computational analysis to analyze and compare film cooling effectiveness with and without multi-jet impingement cooling on a flat plate. Ansys Fluent software is used to perform computational analysis on a flat plate. The computational results were compared with the experimental result using K-ω SST turbulence model and validated with literature data. The flat plate is used for the conjugate heat transfer study on the hot surface (named interaction surface), cold surface (called target surface), and inside the film hole. Different heat transfer parameters such as heat flux, Nusselt's number, and effectiveness are compared for the two cases, i.e., film cooling with impinging jets (IFC) and film cooling without impingement cooling (FC). It is observed that the FC case shows lower effectiveness as compared to the IFC case. The average Nusselt number for the IFC cases is almost three times larger than FC. The film exit temperature values are higher FC case, but it is more uniform in the IFC case. Interaction surface heat flux and Nusselt number values show higher values on the upstream wall of the film hole for IFC than in the FC case.
Keywords:
Jet impingement cooling , Film cooling , Combined impingement film cooling , Turbulent kinetic energy , Nusselt's number
Authors
R. K. Panda
Indian Institute of Technology, Madras, Chennai, Tamilnadu,۶۰۰۰۳۶, India
A. K. Pujari
Indian Institute of Petroleum and Energy, Visakhapatnam, ۵۳۰۰۰۳, India
B. Gudla
Indian Institute of Petroleum and Energy, Visakhapatnam, ۵۳۰۰۰۳, India
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :