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International Journal for Research Trends and Innovation
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ISSN Approved Journal No: 2456-3315 | Impact factor: 8.14 | ESTD Year: 2016
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Issue: April 2026
Volume 11 | Issue 4
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Impact Factor : 8.14
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| Paper Title: | Aerodynamic Evaluation of NACA 4415 and Kline-Fogleman upward stepped Airfoil Using ANSYS: A Study on Lift Characteristics and Stall Delay |
| Authors Name: | Golla Sathvika , Sreeya Nalluri , Bhukya Santhosh , K. Arun Kumar |
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IJRTI_211112
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| Published Paper Id: | IJRTI2604040 |
| Published In: | Volume 11 Issue 4, April-2026 |
| DOI: | |
| Abstract: | This research predominantly focuses on the lift characteristics and stall mechanisms in the Kline Fogleman (KFm-2) upward stepped airfoil, emphasizing its innovative geometry and investigating how it performs in comparison with the NACA 4415 developed by the National Advisory Committee for Aeronautics. The NACA 4415 and the Kline Fogleman Kfm-2 Airfoil are chosen for the research because of their contrasting Design features. While the NACA 4415 is a conventional benchmark, the Kfm-2 is an innovative configuration designed to enhance stall resistance. Stall delay is the airfoil's ability to maintain lift at high angles of attack (AoA), preventing an abrupt loss of control. The stepped geometry of the KFm-2 airfoil, featuring vortex-trapping notches, enhances stall delay and enables stable performance at high angles of attack. This makes it well-suited for applications such as UAVs, RC aircraft, micro air vehicles, and high-lift devices. Lift characteristics, such as the maximum lift coefficient and the lift curve, have been studied at moderate subsonic speeds ranging from 0.3 to 0.6 across angles of attack of 0°, 4°, 8°, 12°, and 16°. Flow separation has likewise been observed; however, the Kline–Fogleman airfoil exhibits an enhanced capacity to sustain attached flow at elevated angles of attack owing to its stepped geometry, which promotes vortex formation and delays separation. ANSYS was utilized for the computational analysis. The results highlight the stall-delay behaviour of the KFm-2 Airfoil, with better lift performance even at higher angles of attack and a more gradual approach to stall. |
| Keywords: | KFm-2 airfoil, NACA 4415, stall delay, lift characteristics, CFD analysis, flow separation, high angle of attack, stepped airfoil geometry. |
| Cite Article: | "Aerodynamic Evaluation of NACA 4415 and Kline-Fogleman upward stepped Airfoil Using ANSYS: A Study on Lift Characteristics and Stall Delay", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2456-3315, Vol.11, Issue 4, page no.a288-a296, April-2026, Available :http://www.ijrti.org/papers/IJRTI2604040.pdf |
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016 An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator |
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Published Paper ID: IJRTI2604040
Registration ID:211112
Published In: Volume 11 Issue 4, April-2026
DOI (Digital Object Identifier):
Page No: a288-a296 Country: Medchal, Telangana, India Research Area: Engineering Publisher : IJ Publication Published Paper URL : https://www.ijrti.org/viewpaperforall?paper=IJRTI2604040 Published Paper PDF: https://www.ijrti.org/papers/IJRTI2604040 |
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ISSN: 2456-3315
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