Influence of the rough sphere rotation on the drag force
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F10%3A00343499" target="_blank" >RIV/67985874:_____/10:00343499 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Influence of the rough sphere rotation on the drag force
Original language description
The shape of the particles in the real fluid flows is different from the spherical. Influence of the shape on the particle motion is very interesting; however, in the common case this problem can't be solved. Therefore, the special cases of the particleshape play important role. One of such case is the particle shape near to spherical -- the rough sphere, i.e. the sphere with rough surface. In the present work this problem is studied for the rough sphere moving and simultaneously rotating in fluid. Thezone of low pressure is formed behind the sphere. This zone gives the main contribution in the drag. If the sphere moves and rotates in fluid the secondary flow supplies the fluid in the zone of low pressure behind the sphere, the pressure in this zoneincreases and the drag decreases. In the case of a smooth sphere this effect is visible for the large angular velocity only whereas in the case of the rough sphere it can be observed even for the small one.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA200600603" target="_blank" >IAA200600603: Experimental and theoretical investigation of the Magnus force acting on the solid particle in fluid</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Materialy VIII Meždunarodnoj konferencii po neravnovesnym processam v soplach i strujach (NPNJ'2010)
ISBN
978-5-7035-2184-7
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
MAI-PRINT
Place of publication
Moskva
Event location
Alušta
Event date
May 25, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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