Transonic Flow (2nd Edition)
A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Aeronautics".
Deadline for manuscript submissions: 31 October 2024 | Viewed by 162
Special Issue Editor
Interests: aerodynamics; computational fluid dynamics; fluid mechanics; gas dynamics; fluid turbulence; experimental fluid mechanics; flow
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Transonic flow research has been of critical importance since the development of high-speed propellor aeroplanes and turbojet engines in the mid-1940s. The transonic flow regime has been, and remains, a challenge both for computational prediction and experimental simulation. The close coupling of shock waves, arising from the compressibility of air, and the effects of viscous flow on aircraft surfaces lead to highly unsteady and complicated flows that often involve detrimental flow separations. These can result in unsteady loading, potentially causing structural vibrations of aircraft components. An understanding of unsteady transonic flow is therefore fundamental to the safe design of high-speed aircraft.
Today’s aircraft industry is required to develop revolutionary new aircraft concepts to address the aviation impact on climate change and noise. This involves driving reassessments in design philosophy to achieve step changes in aerodynamic and propulsive efficiency, involving a much closer coupling of aircraft fuselage, wings, and engines. Emerging data on the transonic performance of these revolutionary designs have revealed how different the flows are to those associated with conventional tube and swept-wing designs.
Transonic flow research therefore remains critical to the development of high-speed aircraft today, and it is fitting that this Special Issue of Aerospace is devoted to this important topic.
Prof. Dr. Simon Prince
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
- transonic flow
- shock wave
- buffet
- boundary layer interaction
- computational fluid dynamics
- wind tunnel testing
Benefits of Publishing in a Special Issue
- Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
- Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
- Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
- External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
- e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.
Further information on MDPI's Special Issue polices can be found here.
Related Special Issue
- Transonic Flow in Aerospace (3 articles)
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Coupling analysis between the transonic buffeting flow and a heaving supercritical airfoil based on dynamic mode decomposition
Authors: Wei Kang; Binzhou Chen; Shilin Hu
Affiliation: School of Astronautics, Northwestern Polytechnical University, Shaanxi Province, 710072, P.R.China
Abstract: The coupling between the transonic buffeting flow and the supercritical airfoil with harmonic heave motion. An in-house finite volume solver is used to compute the flow dynamcis around the heaving airfoil at transonic flow. A parametric space of the heave frequency and amplitude is investigated using a verified fluid-structural interaction framework. The results indicate that there is a sharp deteriorate of the time-averaged lift and drag coefficient at f=fbuffet while the variance of the aerodynamic loading increases significantly at f≥fbuffet and higher heave amplitudes. Spatial-temporal flow pattern around the transonic airfoil is studied using dynamic mode decomposition (DMD) to unveil the coupling physical mechanism. The flow response under the heave motion is categorized into three types: a) Buffet frequency response with λ-shape shock wave structure and recirculation zone at the shock foot; b) Transitional response with a weaken shock and enhanced boundary layer; c) Heaving frequency lock-in response with the dominant heave motion. The driving motion of the airfoil transfers the energy of the buffet mode to boundary layer with more evenly energy balance by the energy contribution analysis of the DMD modes.