AERODYNAMIC EXPERIMENTAL TESTS OF FORCES AND TORQUES ACTING ON THE VOLLEYBALL

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00329454" target="_blank" >RIV/68407700:21220/17:00329454 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.14311/TPFM.2017.015" target="_blank" >http://dx.doi.org/10.14311/TPFM.2017.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/TPFM.2017.015" target="_blank" >10.14311/TPFM.2017.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

AERODYNAMIC EXPERIMENTAL TESTS OF FORCES AND TORQUES ACTING ON THE VOLLEYBALL

Popis výsledku v původním jazyce

Measurements of forces acting on a flying volleyball were done. One conclusion, which was made is, that rotation n = 8.75 rps is the breaking point in the course of the lift coefficient CL vs. revolutions n. In the measurements were used just 4 dynamometers, 2 for lift force FL and 2 for drag Fp. In first part of measuring it is not considered, that any influence of torque is acting on the volleyball. Non dimensional numbers Reynolds number Re, spin s, drag CD and lift CL coefficient are described in the article. A proposal of a new experimental set-up has been prepared. All three forces and three torque components will be observed, resulting in a whole description of force effects acting on volleyball.

Název v anglickém jazyce

AERODYNAMIC EXPERIMENTAL TESTS OF FORCES AND TORQUES ACTING ON THE VOLLEYBALL

Popis výsledku anglicky

Measurements of forces acting on a flying volleyball were done. One conclusion, which was made is, that rotation n = 8.75 rps is the breaking point in the course of the lift coefficient CL vs. revolutions n. In the measurements were used just 4 dynamometers, 2 for lift force FL and 2 for drag Fp. In first part of measuring it is not considered, that any influence of torque is acting on the volleyball. Non dimensional numbers Reynolds number Re, spin s, drag CD and lift CL coefficient are described in the article. A proposal of a new experimental set-up has been prepared. All three forces and three torque components will be observed, resulting in a whole description of force effects acting on volleyball.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Topical Problems of Fluid Mechanics 2017

ISBN

978-80-87012-61-1

ISSN

2336-5781

e-ISSN

—

Počet stran výsledku

4

Strana od-do

113-116

Název nakladatele

Institute of Thermomechanics, AS CR, v.v.i.

Místo vydání

Prague

Místo konání akce

Praha

Datum konání akce

15. 2. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000404424300015