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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
2-D external aerodynamics of an unusual shaped body
 Mohyla, Daniel ; Gal, Pavel (referee) ; Dohnal, Miloslav (advisor)
This bachelor thesis is focused on analysis of flow over a cylindrical rod in 2-D space by using computational fluid dynamics (CFD) with turbulence models k- SST and k- SSTSAS. First part of this thesis is meant to be an introduction to the topic of extrernal flow and CFD. In this part the topics of flow separation, turblence modeling and various related models are discussed. Second part deals with the description of simulation case inside of open source CFD software called OpenFOAM and the obtained results. In last part the disccusion about results is carried out and results are compared.
Detailed record
2-D external aerodynamics of an unusual shaped body
 Mohyla, Daniel ; Gal, Pavel (referee) ; Dohnal, Miloslav (advisor)
This bachelor thesis is focused on analysis of flow over a cylindrical rod in 2-D space by using computational fluid dynamics (CFD) with turbulence models k- SST and k- SSTSAS. First part of this thesis is meant to be an introduction to the topic of extrernal flow and CFD. In this part the topics of flow separation, turblence modeling and various related models are discussed. Second part deals with the description of simulation case inside of open source CFD software called OpenFOAM and the obtained results. In last part the disccusion about results is carried out and results are compared.
Detailed record
Modelling of the effect of the foregoing wake on the bypass transitionon the airfoil
 Straka, P. ; Příhoda, Jaromír ; Šimurda, David
A modified algebraic model of the bypass transition was used for the simulation of the flow around the symmetrical airfoil NACA 0012 in the tandem configuration. The transition model is based on local variables only to enable its application for complex flow geometry using unstructured computational grids. The attention was especially focused on the flow near the leading edge where the boundary layer is not yet fully developed while used empirical correlations were established for the boundary-layer flow. The numerical simulation was compared with experiments of Lee and Kang (2000) carried out for the Reynolds number Re = (2x6)x10^5, the zero angle of attack and various distance between both airfoils. The agreement of numerical simulation with experimental data is quite satisfactory.
Detailed record

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