Numerical Investigation of the Turbine Nozzle Performance due to Pulsating Flow of a Constant Volume Combustion Gas Turbine Engine

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Gholinejad, Yousof | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54763 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Ghorbanian, Kaveh
Abstract:
In present research, Numerical investigation of the turbine nozzle performance due to pulsating flow of a constant volume combustion gas turbine engine has been done. For this purpose, first the blade row is modeled with the BladeGen tool of ANSYS software and then, using the TurboGrid tool, a structured three-dimensional grid is generated and simulated by the ANSYS CFX solver. After simulation, numerical solution validation was performed using the available data. In the last step, after ensuring the boundary conditions and numerical solution methods, the effect of different parameters on the performance of the turbine nozzle is investigated. Finally, to observe the effect of geometric parameters and inlet flow frequency on the performance of the turbine nozzle, total pressure and Mach number counters, total pressure fluctuation diagrams and performance diagrams including increasing entropy, total pressure drop, increasing velocity and decreasing pressure were plotted along the blade row, And the conclusion of the numerical study is presented
Keywords:
Numerical Solution ; Pulsating Flow ; Constant Volume Combustion (CVC) ; ANSYS Software ; BladeGen Tools ; TurboGrid Tools ; Turbine Nozzle

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