Multi-objective surrogate model-based optimization of a small aircraft engine air-intake duct

Drężek, Przemysław; Kubacki, Sławomir; Żółtak, J.

doi:10.1177/09544100211070868

Cited by 4 publications

(2 citation statements)

References 45 publications

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“…The study reported in [7] focused on improving the process of optimizing the aerodynamic shape of the small aircraft engine intake system. Optimization using a multicriterial model is carried out to reduce the loss of full pressure along the motor path and increase the uniformity of the flow in the plane at the inlet to the compressor.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Comparative evaluation of the efficiency of the ring-type and bucket inlet devicesfor a power plant with a turbopropfan engine

Zhornik

Kravchenko

Mitrakhovych

et al. 2022

EEJET

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The increase in losses in the inlet device leads to an increase in specific fuel consumption. When integrating the inlet device and the propeller or propfan, it is necessary to take into consideration their interaction to ensure the maximum efficiency of the power plant. The object of this study is a coaxial propfan with the channel of the inlet device. The results reported here are of practical value: a methodology for designing a bucket S-shaped channel of the inlet device of a power plant with a turboprop engine has been developed. The dependence of the coefficient of preservation of the total pressure of the inlet device on the height and speed of flight was obtained, which makes it possible to take into consideration the influence of the propfan of a turboprop engine. A comparison of the characteristics of the ring-type and bucket S-shaped channel of the inlet device of the power plant with the turboprop engine was carried out. Specifically, it was found that the change in flight conditions has a less significant effect on the change in the coefficient of preservation of the total pressureof the ring-typeinlet device than the bucket one. A comparative assessment of the obtained results of mathematical modeling of the flow in the bucket S-shaped channel of the inlet device, taking into account the influence of the propfan, with the results of flight tests of the ring-type inlet device of the prototype is given. The comparative evaluation shows that the use of a bucket inlet device, instead of a ring-type inlet device, makes it possible to increase the full pressure recovery factor by 5–7 %. Thus, there is reason to argue that replacing the ring-type with a bucket inlet device will minimize hydraulic losses at the inlet to the engine and reduce the uneven flow at the inlet. That, in turn, will improve engine efficiency.

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Comparative evaluation of the efficiency of the ring-type and bucket inlet devicesfor a power plant with a turbopropfan engine

Zhornik

Kravchenko

Mitrakhovych

et al. 2022

EEJET

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“…They can also prove more efficient and cost-effective when simulations demand high computational resources [6]. The application of metamodeling for optimizing air intake aerodynamics in jet engines has been explored in several studies, including the use of kriging models with efficient global optimization algorithms [10], [11], and multi-objective surrogate models [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Diverse Meta-Modeling Approaches for Predicting Performance Characteristics of a Twin Air Intake Based on Experimental Data

AMIRI,

Küçük

2024

Preprint

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Air intakes are critical components in maximizing the efficiency of jet-powered engines. Their diverse designs, ranging from conventional shapes to innovative configurations, coupled with the intricate interplay of fluid dynamics, boundary layer effects, and structural considerations, render the determination of their performance characteristics a time-consuming task. However, a meticulous and confident evaluation of these characteristics is the key to achieving optimal air intake design and, consequently, significant enhancement of overall engine performance. This article assesses various meta-modeling approaches for predicting the performance characteristics of a twin air intake system. A comprehensive exploration of meta-modeling methods, particularly those specifically tailored for data derived from experiments, is presented. A database of 4000 experimentally obtained runs is utilized to construct train and test data for diverse models, including polynomials, decision trees, random forest regression, multivariate adaptive regression splines, and neural networks. The performance of each model is rigorously evaluated based on goodness of fit, precision, accuracy, monotonicity, and interpretability. This study provides a cost-effective and time-efficient alternative for predicting crucial flow parameters associated with the air intake of jet engines. The results reveal that the Random Forest Regression (RFR) model outperforms all other models across all evaluated metrics, demonstrating its superior effectiveness in predicting the performance characteristics of the twin air intake system.

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Kriging-Based Framework Applied to a Multi-Point, Multi-Objective Engine Air-Intake Duct Aerodynamic Optimization Problem

2023

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The forecasted growth in dynamic global air fleet size in the coming decades, together with the need to introduce disruptive technologies supporting net-zero emission air transport, demands more efficient design and optimization workflows. This research focuses on developing an aerodynamic optimization framework suited for multi-objective studies of small aircraft engine air-intake ducts in multiple flight conditions. In addition to the refinement of the duct’s performance criteria, the work aims to improve the economic efficiency of the process. The optimization scheme combines the advantages of Kriging-based Efficient Global Optimization (EGO) with the Radial Basis Functions (RBF)-based mesh morphing technique and the Chebyshev-type Achievement Scalarizing Function (ASF) for handling multiple objectives and design points. The proposed framework is applied to an aerodynamic optimization study of an I-31T aircraft turboprop engine intake system. The workflow successfully reduces the air-duct pressure losses and mitigates the flow distortion at the engine compressor’s front face in three considered flight phases. The results prove the framework’s potential for solving complex multi-point air-intake duct problems and the capacity of the ASF-based formulation to guide optimization toward the designer’s preferred objective targets.

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Multi-objective surrogate model-based optimization of a small aircraft engine air-intake duct

Cited by 4 publications

References 45 publications

Comparative evaluation of the efficiency of the ring-type and bucket inlet devicesfor a power plant with a turbopropfan engine

Comparative evaluation of the efficiency of the ring-type and bucket inlet devicesfor a power plant with a turbopropfan engine

Evaluating Diverse Meta-Modeling Approaches for Predicting Performance Characteristics of a Twin Air Intake Based on Experimental Data

Kriging-Based Framework Applied to a Multi-Point, Multi-Objective Engine Air-Intake Duct Aerodynamic Optimization Problem

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