Název:
Annular Jets and Annular Impinging Jets
Autoři:
Turek, Tomáš ; Trávníček, Zdeněk ; Šafařík, Pavel ; Tesař, Václav Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2012, Praha (CZ), 2012-02-15 / 2012-02-17
Rok:
2012
Jazyk:
eng
Abstrakt: A near field of annular jets and annular impinging jets is experimentally investigated at three inner/outer diameter ratios 0.84, 0.90 and 0.95. Time-mean velocity profiles are evaluated, and three main flow field zones are distinguished – in agreement with the literature, namely the initial merging zone, the intermediate one, and the fully merged one. A distribution of the pressure on the impingement wall is measured for various nozzle-to-wall distances. Two basic annular impinging jet regimes are clearly distinguished, with either small or large recirculation bubbles. Moreover, a hysteretic behavior has been identified under specific parameters.
Klíčová slova:
annular jet; bistability; hysteresis Číslo projektu: CEZ:AV0Z20760514 (CEP), IAA200760801 (CEP), GCP101/11/J019 (CEP) Poskytovatel projektu: GA AV ČR, GA ČR Zdrojový dokument: Conference Topical problem of Fluid Mechanics 2012, ISBN 978-80-87012-40-6
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0207784