Search
Now showing items 1-5 of 5
An Efficient Unsteady Adjoint Optimization System for Multistage Turbomachinery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Unsteady blade row interactions play an important role in the performance of multistage turbomachinery. However, most aerodynamic optimizations of multistage turbomachinery are based on mixing-plane steady flow simulations. ...
The Development and Mechanisms of the High Pressure Turbine Vane Wake Vortex
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The wake vortex is an important origin of unsteadiness and losses in turbines. In this paper, the development and underlying mechanisms of the shedding vortex of a high-pressure transonic turbine vane are studied and ...
DDES Analysis of the Wake Vortex Related Unsteadiness and Losses in the Environment of a High-Pressure Turbine Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, the flows inside a high-pressure turbine (HPT) vane and stage are studied with a delayed detached eddy simulation (DDES) code. The fundamental nozzle/blade interaction is investigated with special attention ...
Scalar Diffusion Equation-Based Model to Predict 2-Dimensional Film Cooling Effectiveness of a Shaped Hole
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One-dimensional laterally averaged adiabatic film cooling effectiveness η¯lat-based correlations have been widely employed in the cooling design of the modern gas turbine and aero-engine; however, the flow field of the ...
In-Hole Characteristic Interface and Film Cooling Interface Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The performance of film cooling is influenced by many parameters, and the nonuniform flow caused by the internal cooling system is found to largely affect the film cooling, which further complicates the in-hole flow and ...