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Túneis de vento numéricos.
- Source :
-
Caderno Brasileiro de Ensino de Física . Apr-Jun2016, Vol. 38 Issue 2, p1-7. 7p. - Publication Year :
- 2016
-
Abstract
- Flow of viscous fluids are not usually discussed in detail in general and basic courses of physics. This is due in part to the fact that the Navier-Stokes equation has analytical solution only for a few restricted cases, while more sophisticated problems can only be solved by numerical methods. In this text, we present a computer simulation of wind tunnel, i.e., we present a set of programs to solve the Navier-Stokes equation for an arbitrary object inserted in a wind tunnel. The tunnel enables us to visualize the formation of vortices behind object, the so-called von Kármán vortices, and calculate the drag force on the object. We believe that this numerical wind tunnel can support the teacher and allow a more elaborate discussion of viscous flow. The potential of the tunnel is exemplified by the study of the drag on a simplified model of wing whose angle of attack can be controlled. A link to download the programs that make up the tunnel appears at the end. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FLUID dynamics
*DRAG force
*WIND tunnels
*FLOW visualization
Subjects
Details
- Language :
- Portuguese
- ISSN :
- 16772334
- Volume :
- 38
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Caderno Brasileiro de Ensino de Física
- Publication Type :
- Academic Journal
- Accession number :
- 115272183
- Full Text :
- https://doi.org/10.1590/S1806-11173822145