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Large Eddy Simulations of Wall Bounded Turbulent Flows Using Unstructured Linear Reconstruction Techniques
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Largeeddy simulations (LES) of wall bounded, low Mach number turbulent flows are conducted using an unstructured finitevolume solver of the compressible flow equations. The numerical method employs linear reconstructions ...
Rotating Flow and Heat Transfer in Cylindrical Cavities With Radial Inflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design and optimization of an efficient internal air system of a gas turbine requires a thorough understanding of the flow and heat transfer in rotating disc cavities. The present study is devoted to the numerical ...
Coupled Aerothermal Modeling of a Rotating Cavity With Radial Inflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow and heat transfer in an aeroengine compressor disk cavity with radial inflow has been studied using computational fluid dynamics (CFD), large eddy simulation (LES), and coupled fluid/solid modeling. Standalone CFD ...
Effect of Bolts on Flow and Heat Transfer in a Rotor–Stator Disk Cavity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Previous studies have indicated some differences between steady computational fluid dynamics (CFD) predictions of flow in a rotor–stator disk cavity with rotating bolts compared to measurements. Recently, time-dependent ...
A Multifidelity Aero-Thermal Design Approach for Secondary Air Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper presents a multidisciplinary approach for aero-thermal and heat transfer analysis for internal flows. The versatility and potential benefit offered by the approach are described through the application to a ...
Transient Aero-Thermo-Mechanical Multidimensional Analysis of a High Pressure Turbine Assembly Through a Square Cycle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Better understanding and more accurate prediction of heat transfer and cooling flows in aero engine components in steady and transient operating regimes are essential to modern engine designs aiming at reduced cooling air ...
Transient Shutdown Cooling Simulation of a Gas Turbine Test Rig Configuration Under Ventilated Natural Convection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transient simulation of shutdown cooling for a gas turbine test rig configuration under ventilated natural convection has been successfully demonstrated using a coupled aerothermal approach. Large eddy simulation (LES) ...
Direct Numerical Simulation of Rotating Cavity Flows Using a Spectral Element-Fourier Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A high-order numerical method is employed to investigate flow in a rotor/stator cavity without heat transfer and buoyant flow in a rotor/rotor cavity. The numerical tool used employs a spectral element discretization in ...