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Aerospace
Special Issues
Progress in Jet Engine Technology III
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Progress in Jet Engine Technology III

A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Aeronautics".

Deadline for manuscript submissions: closed (15 June 2023) | Viewed by 2857

Special Issue Editor

Prof. Dr. Ernesto Benini

E-Mail Website
Guest Editor
Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131 Padova, Italy
Interests: CFD of flows in industrial and energy systems: optimal design methods; performance analysis in design and off-design conditions; full-annulus uRANS methods; aerothermodynamics of propulsion machines; CFD of supersonic and hypersonic flows
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the past decade, the need for more efficient, low-noise, and environmentally friendly propulsors has brought innovative engine concepts and configurations to the attention of researchers within both academia and industry. Noticeable examples include, but are not limited to ultra-high bypass ratio turbofans in podded configurations, distributed propulsion, boundary layer ingestion engines, and hybrid turbo/electric engines. Although such configurations are characterized by non-negligible technology readiness levels, they still require huge research efforts, both theoretical and experimental, to be validated.

This Special Issue aims to provide an overview of recent advances in jet engine technology for the civil sector, with special emphasis on new design configurations and performance assessment. Authors are invited to submit full research articles and review manuscripts addressing (but not limited to) the following topics:

  • Concurrent design methodologies for high-efficiency, low-noise jet engines;
  • Numerical/experimental analyses of jet engines at system and component levels;
  • Integrated propulsor/airframe configurations;
  • Very large/ultra-high by-pass ratio engines;
  • Turbo/electric engines;
  • Jet engines under boundary layer ingestion;
  • Open rotors.

Prof. Dr. Ernesto Benini
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • jet engines
  • jet propulsion
  • jet engine architectures
  • turbofans
  • civil aviation

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Published Papers (1 paper)

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Research

16 pages, 25967 KiB  
Article
Variable-Geometry Rotating Components Modeling Based on Reference Characteristic Curves for the Variable Cycle Engine
by Yangjing Wang, Jinquan Huang, Muxuan Pan and Wenxiang Zhou
Aerospace 2023, 10(2), 196; https://doi.org/10.3390/aerospace10020196 - 17 Feb 2023
Cited by 1 | Viewed by 2128
Abstract
The variable cycle engine switches working modes by way of changing variable-geometry components to achieve the dual advantages of high unit thrust and low specific fuel consumption. Due to the lack of a large amount of rig test data and the complex modeling [...] Read more.
The variable cycle engine switches working modes by way of changing variable-geometry components to achieve the dual advantages of high unit thrust and low specific fuel consumption. Due to the lack of a large amount of rig test data and the complex modeling of rotating components, the incomplete characteristics of the variable-geometry rotating components lead to the non-convergence of the component-level model of the variable cycle engine, which makes it difficult to design the follow-up control system. Aiming at this problem, a characteristics modeling method of variable-geometry rotating components for variable cycle engine based on reference characteristic curves is proposed in this paper. This method establishes a neural network estimation model for the offset coefficients of key component operating points based on the characteristic law of the maturely designed variable-geometry rotating component. Combining the neural network model and the reference characteristic curves of the variable-geometry component to be designed, the offset positions of the operating points for positive and negative guide vane angles are determined. Instead of directly connecting operating points to generate characteristic lines, this paper solves the Bezier curve optimization problem based on sequential quadratic programming (SQP) to smoothly fit characteristic lines. Thereby, component characteristics that conform to the actual variable-geometry characteristics can be quickly established in the absence of rig test data. The simulations show that the characteristics of the variable-geometry rotating components established by the proposed method have satisfactory accuracy and reliability, which further improves the operation stability of the component-level model of the variable cycle engine. Full article
(This article belongs to the Special Issue Progress in Jet Engine Technology III)
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