Tomasz Nowicki
Studia Archiwalne, Vol. 6, 2019, pp. 273-277
https://doi.org/10.4467/17347513SA.19.019.14574Tomasz Nowicki
Studia Archiwalne, Vol. 5, 2018, pp. 313-319
https://doi.org/10.4467/17347513SA.18.022.14555Tomasz Nowicki
Technical Transactions, Budownictwo Zeszyt 2-B (12) 2015, 2015, pp. 127-144
https://doi.org/10.4467/2353737XCT.15.129.4166This paper focuses on the aerodynamic drag force that acts on a long cylinder standing up to aerodynamic wind in the critical regime of the fluid flow. The core problem addressed here is how surface roughness of a high level and further increase of that level affects the drag. The research is based on computer simulations using the Discrete Vortex Method. A meshless version of the method was applied in order to let the boundary layer form freely in the way of a direct computer simulation. Fundamental ideas behind the Discrete Vortex Method, the original research program and the obtained results are presented. The main conclusion is that a small level of surface roughness may be neglected in engineering estimations.