5 results for “Low Reynolds Number”

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Research ArticleOpen accessPhrase in the titleLow Reynolds Number Wing Design for Unmanned Aerial Vehicle: A Case StudyMohammed El-Adawy, Alhassan H. Farid, Mohamed Ahmed Hassan et al.With the widespread utilization of Unmanned Aerial Vehicles (UAVs) in many fields, it is essential to identify the parameters governing their design process. By taking the wing as a showcase, this study intends to guide through the design process of the wing, elaborate on some important definitions, and show how different parts of an aircraft affect each other. The current … …American Journal of Engineering and Applied Sciences, Vol. 15, Issue 4 · 6 Dec 2022 · 7,359 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPreliminary Design and Performance-Stability Analysis of a Fixed-Wing UAV Using XFLR5Campos Rodriguez Victor Antonio, Su YanThis research aims to find the best airfoil and tail configuration for the designing of a UAV of 30 kg capable of carrying a payload of at least 5 kg; for this purpose, work focuses on the analysis of different airfoils for low Reynolds numbers in specific do airfoils with an under cambered design and capable of reaching high lift … …Journal of Aircraft and Spacecraft Technology, Vol. 7, Issue 1 · 26 Dec 2023 · 8,058 accessesView PDF Cite

Research ArticleOpen accessIn the abstractExperimental Study of Near Wake Flow Behind a Rectangular CylinderAbdollah Shadaram, Mahdi Azimi Fard, Noorallah RostamyThe turbulence characteristics of the near wake flow behind a rectangular cylinder is investigated in a two-dimensional analysis using a hot-wire anemometer. The time-averaged and fluctuating components of the velocity are measured for a cylinder having various width-to-height (b h-1) ratios. The measurements are carried out in a low-speed wind tunnel. Data from hot-wire anemometer is collected by a data … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,270 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNumerical Simulation of 2_D Turbidity Currents and Wall JetM.H. Shojaeefard, K. Goudarzi, H. Ghasvari JahromiDense underflows are continuous currents, which move down the slope due to the fact that, their density are heavier than ambient water. In turbidity currents the density differences arises from suspended solids. Vicinity of the wall make density currents and wall jets similar in some sense but Variation of density cause this flows more complex than wall jets. An improved … …American Journal of Applied Sciences, Vol. 4, Issue 11 · 30 Nov 2007 · 7,034 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordOn Wing Tip Flow Around a Low Aspect Ratio Wing at Low Flight Speeds Using OpenFOAM® and Parallel ProcessingNikolaos Konstantinos Lampropoulos, Ioannis Eleftherios SarrisIn the present study, the effect of the wing tip geometry on the aerodynamic performance of a swept-back wing at moderate Reynolds numbers is investigated through numerical simulation and parallel processing. The aim is the identification of streamlines around the wing and subsequently the formation of the wing tip vortex. Due to the purely three-dimensional character of the flow, the … …Journal of Aircraft and Spacecraft Technology, Vol. 9, Issue 1 · 31 Jan 2025 · 9,538 accessesView PDF Cite