Basset history force for spherical particle colliding with wall
1.
SYSNO ASEP
0329721
Druh ASEP
C - Konferenční příspěvek (mezinárodní konf.)
Zařazení RIV
D - Článek ve sborníku
Název
Basset history force for spherical particle colliding with wall
Tvůrce(i)
Lukerchenko, Nikolay (UH-J)
Zdroj.dok.
MMTT-22: Matematicheskije Metody v Nauke i Technologijach, Sekcija 3. - Pskov : PGPI, 2009
- ISBN 978-5-91116-096-5
Rozsah stran
s. 15-17
Poč.str.
3 s.
Akce
Mezhdunarodnajanauchnaja konferencija Matematicheskije metody v nauke i technologijach /22./
Datum konání
25.05.2009-30.05.2009
Místo konání
Pskov
Země
RU - Rusko
Typ akce
WRD
Jazyk dok.
eng - angličtina
Země vyd.
RU - Rusko
Klíč. slova
multiphase flow ; Basset force ; particle-wall collision
Vědní obor RIV
BK - Mechanika tekutin
CEP
GA103/09/1718 GA ČR - Grantová agentura ČR
CEZ
AV0Z20600510 - UH-J (2005-2011)
Anotace
In the most works the calculation of the Basset force is reset to zero after each rebound from the wall. However, the integral of Basset force is sometimes calculated from the moment t-Tback to the current moment t. A few particle jumps can occur during “the memory time period” Tback , the history of the particle motion during this period must be taken into account totally, including the particle–wall collisions. In the paper the contributions of the particle–wall collisions in the Basset force are expressed by formula. It is shown that in the moment of the collision tc the value of the Basset force becomes infinitely large. In the moment near the collision t = tc+ Δ t (Δ t < tc) the value of the Basset force is great but the impulse of the Basset force has the order of , i.e. small. Thus, a particle-wall collision brings to a peak the increase of the Basset force during the short time so that its impulse remains finite. It must be taken into account into numerical models.
