The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of MATHEMATICS AND COMPUTERS IN SIMULATION
Transactions ID Number: 17-142
Full Name: Pedro De la Calzada
Position: Associate Professor
Age: ON
Sex: Male
Address: ITP, Avda. Castilla 2, 28830 San Fernando de Henares, Madrid
Country: SPAIN
Tel: 34651702914
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E-mail address: pedro.delacalzada@upm.es
Other E-mails: pedro.delacalzada@itp.es
Title of the Paper: Numerical Investigation on the Heat Transfer and Flow Characteristics of a Leading Edge Impingement Cooling System for Low Pressure Turbine Vanes
Authors as they appear in the Paper: Pedro de la Calzada and Jose Javier Alvarez
Email addresses of all the authors: pedro.delacalzada@upm.es,josejavier.alvarez@itp.es
Number of paper pages: 8
Abstract: Deep insight on the flow physics driving the surface heat transfer phenomena in impingement cooling configurations is possible by the use of CFD simulations. Under the current work the main flow features affecting the heat transfer in a particular impingement cooling configuration used in a low pressure turbine vane were investigated by a numerical simulation. The particular impingement cooling system is representative of the one used for cooling the leading edge of a contra-rotating Power Turbine (PT) vane representative of a small turboshaft engine. Existing experimental results were used for code validation. Comparison of results is performed in terms of heat transfer surface distributions, impingement rows stagnation line local distributions and streamwise distributions along planes over the impingement stagnation points. The CFD results present local deviations in the heat transfer compared with experimental results although the surface averaged value is well !
matched. Additional flow features having a significant effect on the obtained surface heat transfer results were investigated . In particular the generation of impingement and ejection stagnation regions and their effect in the local maxima and minima observed on the surface heat transfer is analyzed
Keywords: Impingement cooling, Numerical heat transfer, Turbine cooling
EXTENSION of the file: .pdf
Special (Invited) Session: Numerical Investigation on the Heat Transfer and Flow Characteristics of a Leading Edge Impingement Cooling System for Low Pressure Turbine Vanes
Organizer of the Session: 303-177
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