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Rotorcraft Airfoil Performance in Martian Environment
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0009-0006-4360-587X
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-5294-1855
2024 (English)In: Aerospace, E-ISSN 2226-4310, Vol. 11, no 8, article id 628Article in journal (Refereed) Published
Abstract [en]

In 2021, the Ingenuity helicopter performed the inaugural flight on Mars, heralding a new epoch of exploration. However, the aerodynamics on Mars present unique challenges not found on Earth, such as low chord-based Reynolds number flows, which pose significant hurdles for future missions. The Ingenuity’s design incorporated a Reynolds number of approximately 20,000, dictated by the rotor’s dimensions. This paper investigates the implications of flows at a Reynolds number of 50,000, conducting a comparative analysis with those at 20,000 Re. The objective is to evaluate the feasibility of using larger rotor dimensions or extended airfoil chord lengths. An increase in the Reynolds number alters the size and position of Laminar Separation Bubbles (LSBs) on the airfoil, significantly impacting performance. This study leverages previous research on the structure and dynamics of LSBs to examine the flow around a cambered plate with 6% camber and 1% thickness in Martian conditions. This paper details the methods and mesh used for analysis, assesses airfoil performance, and provides a thorough explanation of the results obtained.

Place, publisher, year, edition, pages
MDPI, 2024. Vol. 11, no 8, article id 628
Keywords [en]
unmanned aerial vehicles (UAVs), computational fluid dynamics (CFD), laminar separation bubble (LSB), Martian atmosphere, low Reynolds, airfoil performance
National Category
Aerospace Engineering
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-108581DOI: 10.3390/aerospace11080628ISI: 001305040500001Scopus ID: 2-s2.0-85202599297OAI: oai:DiVA.org:ltu-108581DiVA, id: diva2:1888996
Note

Validerad;2024;Nivå 2;2024-08-14 (signyg);

Fulltext license: CC BY

Available from: 2024-08-14 Created: 2024-08-14 Last updated: 2024-11-20Bibliographically approved

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Giacomini, EnricoWesterberg, Lars-Göran

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