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RISApplication of Adjoint-Enhanced First Order Second Moment Method for Robust Design Optimization of a High Pressure Compressor Rotor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper applies the computationally advantageous combination of a differential analysis technique and the adjoint method in the context of uncertainty quantification to the gradient-based robust design optimization of ...
Prediction of Steady and Unsteady Flow Quantities Using Multiscale Graph Neural Networks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Analysis, optimization, and uncertainty quantification of the aerodynamic behavior of turbomachinery components is a fundamental part of the current industrial design process and requires the extensive use of compute-intensive ...
Employing the Time-Domain Unsteady Discrete Adjoint Method for Shape Optimization of Three-Dimensional Multirow Turbomachinery Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In turbomachinery, the steady adjoint method has been successfully used for the computation of derivatives of various objective functions with respect to design variables in gradient-based optimization. However, the ...
Roughness Investigations on In-Service High-Pressure Compressor Blades—Part I: An Automated Process for High-Fidelity Roughness Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The two-part publication deals with roughness investigations on in-service high-pressure compressor (HPC) blades, both in terms of measurements and simulations. In this article (Part I), an automated process for performing ...
Comparison of Two Methods for Sensitivity Analysis of Compressor Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper will compare two approaches of sensitivity analysis, namely (i) the adjoint method which is used to obtain an initial estimate of the geometric sensitivity of the gas-washed surfaces to aerodynamic quantities ...
Probabilistic Finite Element Analysis of Cooled High-Pressure Turbine Blades—Part A: Holistic Description of Manufacturing Variability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern high-pressure turbine (HPT) blade design stands out due to its high complexity comprising three-dimensional blade features, multipassage cooling system (MPCS), and film cooling to allow for progressive thermodynamic ...
A Methodology for a Coupled Structural–Computational Fluid Dynamics Analysis of Compressor Rotor Blades Subjected to Ice Impact With Uncertain Impactor Parameters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method for a coupled structural–computational fluid dynamics (CFD) analysis of a compressor rotor blade subjected to an ice impact scenario is investigated to assess the impact related blade deformations from a structural ...
Probabilistic Finite Element Analysis of Cooled High-Pressure Turbine Blades—Part B: Probabilistic Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern high-pressure turbine (HPT) blade design stands out due to high complexity comprising three-dimensional blade features, multipassage cooling system (MPCS), and film cooling to allow for progressive thermodynamic ...
Robust Design Optimization of a Compressor Rotor Using Recursive Cokriging Based Multi-Fidelity Uncertainty Quantification and Multi-Fidelity Optimization
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work focuses on the application of multi-fidelity methods for the robust design optimization of engine components. The robust design optimization approach yields geometric designs that have high efficiencies and are ...
Convergence Acceleration of Favre-Averaged Non-Linear Harmonic Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper develops a numerical procedure to accelerate the convergence of the Favre-averaged non-linear harmonic (FNLH) method. The scheme provides a unified mathematical framework for solving the sparse linear systems ...