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Description
| - The well-known Magnus effect is the phenomenon responsible for the curved streamlines around rotating cylinders or balls. In other words, the phenomenon causes the curved motion of spinning balls and missiles. A related application is the Flettner rotor ship, which was designed to use the Magnus effect for propulsion. More generally, the Kutta-Joukowski theorem determines lift as the product of upstream velocity, fluid density, and circulation. Flow visualization experiments of cylinders in a cross flow demonstrate this effect. For comparison purposes, a classical potential solution is presented with the same parameters (with the Reynolds number of 920). The present study assumes that similar effects can be created by means of a non-symmetrical heat/mass transfer from a section of the bluff body. A theoretical model was derived, based on equations of momentum, mass, and energy balance. The derivation utilized the terms of the entropy gradient, and the resulting velocity circulation around the body. A circular cylinder with a mass transfer surface was suggested. The mass transfer, namely the evaporation of water, is proposed through a selected 90° segment of the cylinder surface.
- The well-known Magnus effect is the phenomenon responsible for the curved streamlines around rotating cylinders or balls. In other words, the phenomenon causes the curved motion of spinning balls and missiles. A related application is the Flettner rotor ship, which was designed to use the Magnus effect for propulsion. More generally, the Kutta-Joukowski theorem determines lift as the product of upstream velocity, fluid density, and circulation. Flow visualization experiments of cylinders in a cross flow demonstrate this effect. For comparison purposes, a classical potential solution is presented with the same parameters (with the Reynolds number of 920). The present study assumes that similar effects can be created by means of a non-symmetrical heat/mass transfer from a section of the bluff body. A theoretical model was derived, based on equations of momentum, mass, and energy balance. The derivation utilized the terms of the entropy gradient, and the resulting velocity circulation around the body. A circular cylinder with a mass transfer surface was suggested. The mass transfer, namely the evaporation of water, is proposed through a selected 90° segment of the cylinder surface. (en)
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Title
| - Lift forces on a circular cylinder in cross flow resulting from heat/mass transfer
- Lift forces on a circular cylinder in cross flow resulting from heat/mass transfer (en)
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skos:prefLabel
| - Lift forces on a circular cylinder in cross flow resulting from heat/mass transfer
- Lift forces on a circular cylinder in cross flow resulting from heat/mass transfer (en)
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skos:notation
| - RIV/46747885:24210/13:#0005577!RIV14-GA0-24210___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - I, P(ED2.1.00/03.0088), P(GCP101/11/J019), P(IAA200760801)
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/46747885:24210/13:#0005577
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Active flow control; Cylinder in cross flow; Magnus effect (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - WIT Transactions on Modelling and Simulation / 16th International Conference on Computational Methods and Experimental Measurements, CMEM 2013
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Maršík, František
- Trávníček, Zdeněk
- Vít, Tomáš
- Pavelka, Miroslav
- Broučková, Zuzana
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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issn
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number of pages
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http://bibframe.org/vocab/doi
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http://purl.org/ne...btex#hasPublisher
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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