Numerical Modelling of the Aerodynamic Roughness of Trapezoidal and Corrugated Sheets

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F15%3A86094995" target="_blank" >RIV/61989100:27120/15:86094995 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4203/ccp.108.267" target="_blank" >http://dx.doi.org/10.4203/ccp.108.267</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4203/ccp.108.267" target="_blank" >10.4203/ccp.108.267</a>

Result language
angličtina
Original language name
Numerical Modelling of the Aerodynamic Roughness of Trapezoidal and Corrugated Sheets
Original language description
The shape of a covering of smokestacks significantly influences the load from wind effects. In civil engineering practice, particularly for high chimneys, there is often a requirement for their coating with shaped sheet metal as a result of dilatation. The calculation of load effects according to the valid standard only takes into account the size of roughness of the flow around the body, therefore the size of the wave-height sheet regardless of its shape is ignored, which in some cases leads to a substantial increase of the coefficient forces. This paper deals with the possibilities of defining of an equivalent aerodynamic drag coefficient value for flow around a sheathed chimney referred to as the aforementioned coefficient forces. The problem is solved numerically using the finite volume computational fluid dynamics codes in the software ANSYS Fluent. Meshing of the shaped sheathing makes high demands on the number of cells in the computational area currently unrealistic for desktop
Czech name
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Czech description
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Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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