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Flow around winglet
Grešáková, Kristýna ; Rudolf, Pavel (referee) ; Sluše, Jan (advisor)
The first part of this bachelor´s thesis deals with the use of winglets and fluid flow around them. The second part provides a view of model experiments, anemometry and visualization of flow. The final section focuses on real experiment in aerodynamic tunnel.
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Experimental determination of the liquid influence on an oscillating body
Grešáková, Kristýna ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
Damping and natural frequency of a vibrating body or a system is not easy to estimate during the design phase of~project. If the body is submerged in water, estimating becomes even more complicated. This~work focuses on experimental determination of the liquid influence on an oscillating body. The~presented modal analysis was executed on two bodies when being surrounded by air, but~also when gradually and fully submerged in water using two reservoirs with different dimensions. The collected data was analyzed with a suggested hybrid method, which determined the damping ratio and the natural frequency. Added mass was calculated employing the Ansys software. Part of the presented work focuses on the selection of a suitable time window for the Fourier transform.
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Experimental determination of the liquid influence on an oscillating body
Grešáková, Kristýna ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
Damping and natural frequency of a vibrating body or a system is not easy to estimate during the design phase of~project. If the body is submerged in water, estimating becomes even more complicated. This~work focuses on experimental determination of the liquid influence on an oscillating body. The~presented modal analysis was executed on two bodies when being surrounded by air, but~also when gradually and fully submerged in water using two reservoirs with different dimensions. The collected data was analyzed with a suggested hybrid method, which determined the damping ratio and the natural frequency. Added mass was calculated employing the Ansys software. Part of the presented work focuses on the selection of a suitable time window for the Fourier transform.
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Flow around winglet
Grešáková, Kristýna ; Rudolf, Pavel (referee) ; Sluše, Jan (advisor)
The first part of this bachelor´s thesis deals with the use of winglets and fluid flow around them. The second part provides a view of model experiments, anemometry and visualization of flow. The final section focuses on real experiment in aerodynamic tunnel.
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