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Numerical study of the influence of cone-cylindrical body geometry on aerodynamic processes in transonic flow.

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Title: Numerical study of the influence of cone-cylindrical body geometry on aerodynamic processes in transonic flow.
Authors: Dreus, Andrii1 (AUTHOR) dreus.a@dnu.dp.ua, Aleksieienko, Serhii2 (AUTHOR) aleksieienko.s.v@nmu.one, Dron, Mykola3 (AUTHOR) nord@dnu.dp.ua, Heti, Krystyna1 (AUTHOR) geti_k@365.dnu.edu.ua, Dubovik, Ludmila3 (AUTHOR) dubovlk066@gmail.com
Source: Aircraft Engineering & Aerospace Technology. 2026, Vol. 98 Issue 4, p550-560. 11p.
Subjects: Transonic flow, Shock waves, Drag (Aerodynamics), Launch vehicles (Astronautics), Computational fluid dynamics, Polymers, Aerodynamics
Abstract: Purpose: This study aims to investigate the aerodynamic behavior of cone-cylinder flight bodies with varying geometric parameters under subsonic, transonic and low-supersonic flow conditions. The motivation stems from the development of ultralight polymer-based launch vehicles (LVs) using autophage propulsion systems. Design/methodology/approach: Computational fluid dynamics (CFD) simulations were performed using Reynolds-Averaged Navier–Stokes equations with the Spalart–Allmaras turbulence model. The flow around cone-cylinder bodies was analyzed for Mach numbers ranging from 0.6 to 2.0, focusing on pressure distributions, drag characteristics and shock wave dynamics. Findings: The simulations revealed that pressure fluctuations and self-oscillations of local shocks occur in the transition region between the conical and cylindrical parts, particularly in the transonic regime. The aerodynamic drag is strongly influenced by the elongation and shape of the nose section. Ogive shapes demonstrated lower drag than conical ones of the same elongation. Flow separation and vortex structures were observed at non-zero angles of attack, contributing to unsteady aerodynamic loads. Research limitations/implications: This study focuses on idealized geometries and does not consider structural deformations or thermal degradation, which could be relevant for polymer-based LVs. Practical implications: The results are critical for the structural design and trajectory optimization of polymer-bodied LVs, particularly under transonic aerodynamic loads where local shocks and pressure oscillations can lead to material failure. Originality/value: This work provides new insight into the transient aerodynamic phenomena around cone-cylinder configurations relevant to novel lightweight autophage propulsion systems, addressing an underexplored area of LV aerodynamics. [ABSTRACT FROM AUTHOR]
Copyright of Aircraft Engineering & Aerospace Technology is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192257575
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Numerical study of the influence of cone-cylindrical body geometry on aerodynamic processes in transonic flow.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Dreus%2C+Andrii%22">Dreus, Andrii</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dreus.a@dnu.dp.ua</i><br /><searchLink fieldCode="AR" term="%22Aleksieienko%2C+Serhii%22">Aleksieienko, Serhii</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> aleksieienko.s.v@nmu.one</i><br /><searchLink fieldCode="AR" term="%22Dron%2C+Mykola%22">Dron, Mykola</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> nord@dnu.dp.ua</i><br /><searchLink fieldCode="AR" term="%22Heti%2C+Krystyna%22">Heti, Krystyna</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> geti_k@365.dnu.edu.ua</i><br /><searchLink fieldCode="AR" term="%22Dubovik%2C+Ludmila%22">Dubovik, Ludmila</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> dubovlk066@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Aircraft+Engineering+%26+Aerospace+Technology%22">Aircraft Engineering & Aerospace Technology</searchLink>. 2026, Vol. 98 Issue 4, p550-560. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Transonic+flow%22">Transonic flow</searchLink><br /><searchLink fieldCode="DE" term="%22Shock+waves%22">Shock waves</searchLink><br /><searchLink fieldCode="DE" term="%22Drag+%28Aerodynamics%29%22">Drag (Aerodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Launch+vehicles+%28Astronautics%29%22">Launch vehicles (Astronautics)</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: This study aims to investigate the aerodynamic behavior of cone-cylinder flight bodies with varying geometric parameters under subsonic, transonic and low-supersonic flow conditions. The motivation stems from the development of ultralight polymer-based launch vehicles (LVs) using autophage propulsion systems. Design/methodology/approach: Computational fluid dynamics (CFD) simulations were performed using Reynolds-Averaged Navier–Stokes equations with the Spalart–Allmaras turbulence model. The flow around cone-cylinder bodies was analyzed for Mach numbers ranging from 0.6 to 2.0, focusing on pressure distributions, drag characteristics and shock wave dynamics. Findings: The simulations revealed that pressure fluctuations and self-oscillations of local shocks occur in the transition region between the conical and cylindrical parts, particularly in the transonic regime. The aerodynamic drag is strongly influenced by the elongation and shape of the nose section. Ogive shapes demonstrated lower drag than conical ones of the same elongation. Flow separation and vortex structures were observed at non-zero angles of attack, contributing to unsteady aerodynamic loads. Research limitations/implications: This study focuses on idealized geometries and does not consider structural deformations or thermal degradation, which could be relevant for polymer-based LVs. Practical implications: The results are critical for the structural design and trajectory optimization of polymer-bodied LVs, particularly under transonic aerodynamic loads where local shocks and pressure oscillations can lead to material failure. Originality/value: This work provides new insight into the transient aerodynamic phenomena around cone-cylinder configurations relevant to novel lightweight autophage propulsion systems, addressing an underexplored area of LV aerodynamics. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Aircraft Engineering & Aerospace Technology is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 550
    Subjects:
      – SubjectFull: Transonic flow
        Type: general
      – SubjectFull: Shock waves
        Type: general
      – SubjectFull: Drag (Aerodynamics)
        Type: general
      – SubjectFull: Launch vehicles (Astronautics)
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Polymers
        Type: general
      – SubjectFull: Aerodynamics
        Type: general
    Titles:
      – TitleFull: Numerical study of the influence of cone-cylindrical body geometry on aerodynamic processes in transonic flow.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Dreus, Andrii
      – PersonEntity:
          Name:
            NameFull: Aleksieienko, Serhii
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            NameFull: Dron, Mykola
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            NameFull: Heti, Krystyna
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            NameFull: Dubovik, Ludmila
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            – D: 01
              M: 04
              Text: 2026
              Type: published
              Y: 2026
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              Value: 98
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              Value: 4
          Titles:
            – TitleFull: Aircraft Engineering & Aerospace Technology
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