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Aerospace, Volume 10, Issue 5

May 2023 - 106 articles

Cover Story: The thermal analysis of the thrust chamber is an essential part of the design of a liquid rocket engine. In this study, a simplified steady-state thermal analysis model is presented. The model is based on semi-empirical correlations for the hot-gas and coolant convective heat transfer and on an original multi-zone approach for wall conduction. The hot-gas heat transfer is calibrated with experimental data taken from an additively manufactured water-cooled nozzle that generates a thrust of about 450 N. The propellants are hydrogen peroxide and automotive diesel. The calibrated model predicts the total wall heat transfer rate very accurately and the temperature distribution within the wall structure with an uncertainty of a few tens of kelvins. View this paper
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Articles (106)

  • Article
  • Open Access
7 Citations
2,455 Views
17 Pages

This paper presents an efficient method for securing navigation performance by suppressing divergence risk of LiDAR SLAM through a newly proposed geometric observability analysis in a three-dimensional point cloud map. For this, observability charact...

  • Article
  • Open Access
6 Citations
2,246 Views
21 Pages

Studies on the geometry variation-related compressor uncertainty quantification (UQ) have often used dimension reduction methods, such as the principal component analysis (PCA), for the modeling of deviations. However, in the PCA method, the main eig...

  • Article
  • Open Access
26 Citations
7,587 Views
25 Pages

A Virtual Simulation-Pilot Agent for Training of Air Traffic Controllers

  • Juan Zuluaga-Gomez,
  • Amrutha Prasad,
  • Iuliia Nigmatulina,
  • Petr Motlicek and
  • Matthias Kleinert

In this paper we propose a novel virtual simulation-pilot engine for speeding up air traffic controller (ATCo) training by integrating different state-of-the-art artificial intelligence (AI)-based tools. The virtual simulation-pilot engine receives s...

  • Article
  • Open Access
5 Citations
3,025 Views
17 Pages

The Study of Selected Aspects of the Suborbital Vehicle Return Flight Trajectory

  • Agnieszka Kwiek,
  • Marcin Figat and
  • Tomasz Goetzendorf-Grabowski

The article presents the results of preliminary studies of the parameters of the return flight trajectory of a rocket plane for suborbital tourist flights into space. The rocket plane is designed as a tailless vehicle and has an unconventional arrang...

  • Article
  • Open Access
1 Citations
2,484 Views
10 Pages

In this paper, we propose a three-dimensional autonomous drone exploration system (ADES) with a lightweight and low-latency saliency prediction model to explore unknown environments. Several studies have applied saliency prediction in drone explorati...

  • Article
  • Open Access
20 Citations
3,148 Views
30 Pages

The increasing usage of unmanned aerial vehicles (UAVs) and their variants carrying complex weapon systems, known as unmanned combat aerial vehicles (UCAVs), has triggered a global revolution in complex military and commercial operations and has attr...

  • Article
  • Open Access
6 Citations
3,841 Views
21 Pages

Transonic buffet is a phenomenon of large self-excited shock oscillations caused by shock wave-boundary layer interaction, which is one of the common flow instability problems in aeronautical engineering. This phenomenon involves unsteady flow, which...

  • Article
  • Open Access
1 Citations
2,153 Views
17 Pages

The special use environment and uncertainty of extravehicular activities (EVAs) make it difficult to predict the lifetime consumption of extravehicular spacesuits in the traditional way. This paper presents a flexible reliability dynamic simulation m...

  • Article
  • Open Access
3 Citations
2,459 Views
16 Pages

Buckling Analysis and Structure Improvement for the Afterburner Cylinder of an Aero-Engine

  • Xiaoxia Zheng,
  • Yu Zou,
  • Bohan He,
  • Jixin Xiang,
  • Zhiqiang Li and
  • Qiao Yang

The buckling failure of the afterburner cylinder is a serious safety concern for aero-engines. To tackle this issue, the buckling simulation analysis of the afterburner cylinder was carried out by using finite element method (FEM) software to obtain...

  • Article
  • Open Access
1 Citations
1,907 Views
20 Pages

Discovering and mitigating potential risks in advance is essential for preventing aviation accidents on routine flights. Although anomaly detection-based explanation techniques have successfully uncovered potential risks for proactive flight safety m...

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Aerospace - ISSN 2226-4310