Innovative Numerical Method to Partially Solve the Airfoil Flow
DOI:
https://doi.org/10.54097/dbe0bd27Keywords:
Computational fluid dynamics, small disturbance equation, airfoil.Abstract
With the meteoric rise of modern computer science, computational fluid dynamics (CFD) has evolved into a formidable tool adept at addressing multifaceted challenges across diverse domains. Historically, CFD's maiden application was in the aviation sector, aimed at refining the aerodynamic contours of airfoils. Fast forward several decades and its deployment in this arena has reached unparalleled sophistication. This paper harnesses numerical methodologies within CFD to decipher flow dynamics around an airfoil. Central to this exploration is the small disturbance equation, a derivative of the full potential equation. The study meticulously discretizes this equation using advanced mathematical techniques. Furthermore, boundary conditions, namely the wall side and Neumann, are judiciously employed to ascertain boundary point values. Leveraging Python-based iterations, we derive numerical solutions for streamlining patterns and Mach number contours. A rigorous error analysis affirms the validity and efficacy of our results. While the study acknowledges certain inherent limitations, the findings compellingly delineate the flow characteristics around the airfoil in both subsonic and supersonic scenarios, offering valuable insights for future aerodynamic endeavors.
Downloads
References
Cheng Fanrui, Xu Yang and Zhou Wenbo. Nozzle flow simulation by small disturbance approximation and Euler method. Journal of Physics: Conference Series, 2021, 2012 (1): 012048.
Sun Zhiyi, Wu Xiaorong. Discussion and application of CFD numerical simulation technology. Water Conservancy Science and Technology and Economy, 2008, 14: 126-128.
Li Zhiyin, Xiong Xiaohui, Wu Jiaming. The brief introduction of normal numerical method of CFD. Guangdong Shipbuilding, 2004, 3: 5-8.
Ambarita H., Siregar M. R. and Kishinami K., et al. Application of CFD in Indonesian research: a review. Journal of Physics: Conference Series, 2018, 1005 (1): 012014.
Qian Xuehui. The impact of inlet Mach number and domain shape on subsonic nozzle flow via small disturbance equation. Journal of Physics: Conference Series, 2023, 2441 (1): 012002.
Kreiselmaier Erich and Laschka Boris. Small disturbance Euler equation: efficient and accurate tool for unsteady load prediction. Journal of Aircraft, 2000, 37 (5): 770-778.
Holst Terry L and Ballhaus William F. Fast, conservative schemes for the full potential equation applied to transonic flows. AIAA Journal, 1979, 17 (2): 145-152.
Anderson John David. Modern compressible flow: with historical perspective. New York: McGraw-Hill, 1990, 12.
Kwon Jae Ryong and Vepa Ranjan. Transonic small disturbance unsteady potential flow over very high aspect ratio wings. The Aeronautical Journal, 2022, 126 (1305): 1834-1852.
Hafez M.U.R.M.A.N., South J. and Murman E. Artificial compressibility methods for numerical solutions of transonic full potential equation. AIAA Journal, 1979, 17 (8): 838-844.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Highlights in Science, Engineering and Technology

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.







