Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV
Апстракт
In this paper, we present a numerical study of the wall jet flow over a convex surface, viz. the Coanda wall jet, and its application to a conceptual Unmanned Aerial Vehicle (UAV) design which uses the Coanda effect as a basis of lift production. This configuration is important in a way that it considers the Coanda wall jet over a smooth convex wall with non-constant curvature, in contrast to most of the previous situations where only constant curvature walls were considered e.g. the Coanda wall jet over circular cylinder. To enable the mathematical representation of this complex geometrical configuration, we propose a form of a parametric representation of the conceptual geometry, based on Bernstein polynomials, which is universal in character and spans a complete design space. It is shown how dynamically changing the flow picture enables smooth change of net forces on the body. Capability to control the direction of the net force is shown to be useful for maneuvering the UAV. All sim...ulations are done using an open-source finite-volume computational fluid dynamics code based on Reynolds-averaged Navier-Stokes equations. Turbulence is accounted for using the k-omega Shear Stress Transport model.
Извор:
Lecture Notes in Computational Science and Engineering, 2015, 108, 197-207Напомена:
- Conference on Boundary and Interior Layers - Computational and Asymptotic Methods (BAIL), Sep 15-19, 2014, Charles Univ, Prague, Czech Republic
DOI: 10.1007/978-3-319-25727-3_15
ISSN: 1439-7358
WoS: 000391152400015
Scopus: 2-s2.0-84964868860
Институција/група
VinčaTY - CONF AU - Mirkov, Nikola S. AU - Rasuo, Bosko PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7144 AB - In this paper, we present a numerical study of the wall jet flow over a convex surface, viz. the Coanda wall jet, and its application to a conceptual Unmanned Aerial Vehicle (UAV) design which uses the Coanda effect as a basis of lift production. This configuration is important in a way that it considers the Coanda wall jet over a smooth convex wall with non-constant curvature, in contrast to most of the previous situations where only constant curvature walls were considered e.g. the Coanda wall jet over circular cylinder. To enable the mathematical representation of this complex geometrical configuration, we propose a form of a parametric representation of the conceptual geometry, based on Bernstein polynomials, which is universal in character and spans a complete design space. It is shown how dynamically changing the flow picture enables smooth change of net forces on the body. Capability to control the direction of the net force is shown to be useful for maneuvering the UAV. All simulations are done using an open-source finite-volume computational fluid dynamics code based on Reynolds-averaged Navier-Stokes equations. Turbulence is accounted for using the k-omega Shear Stress Transport model. C3 - Lecture Notes in Computational Science and Engineering T1 - Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV VL - 108 SP - 197 EP - 207 DO - 10.1007/978-3-319-25727-3_15 ER -
@conference{ author = "Mirkov, Nikola S. and Rasuo, Bosko", year = "2015", abstract = "In this paper, we present a numerical study of the wall jet flow over a convex surface, viz. the Coanda wall jet, and its application to a conceptual Unmanned Aerial Vehicle (UAV) design which uses the Coanda effect as a basis of lift production. This configuration is important in a way that it considers the Coanda wall jet over a smooth convex wall with non-constant curvature, in contrast to most of the previous situations where only constant curvature walls were considered e.g. the Coanda wall jet over circular cylinder. To enable the mathematical representation of this complex geometrical configuration, we propose a form of a parametric representation of the conceptual geometry, based on Bernstein polynomials, which is universal in character and spans a complete design space. It is shown how dynamically changing the flow picture enables smooth change of net forces on the body. Capability to control the direction of the net force is shown to be useful for maneuvering the UAV. All simulations are done using an open-source finite-volume computational fluid dynamics code based on Reynolds-averaged Navier-Stokes equations. Turbulence is accounted for using the k-omega Shear Stress Transport model.", journal = "Lecture Notes in Computational Science and Engineering", title = "Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV", volume = "108", pages = "197-207", doi = "10.1007/978-3-319-25727-3_15" }
Mirkov, N. S.,& Rasuo, B.. (2015). Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV. in Lecture Notes in Computational Science and Engineering, 108, 197-207. https://doi.org/10.1007/978-3-319-25727-3_15
Mirkov NS, Rasuo B. Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV. in Lecture Notes in Computational Science and Engineering. 2015;108:197-207. doi:10.1007/978-3-319-25727-3_15 .
Mirkov, Nikola S., Rasuo, Bosko, "Numerical Simulation of Air Jet Attachment to ConvexWalls and Application to UAV" in Lecture Notes in Computational Science and Engineering, 108 (2015):197-207, https://doi.org/10.1007/978-3-319-25727-3_15 . .