start-ver=1.4
cd-journal=joma
no-vol=99
cd-vols=
no-issue=1
article-no=
start-page=410
end-page=420
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200712
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Suspension pattern and rising height of sedimentary particles with low concentration in a mechanically stirred vessel
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this study, the effects of impeller rotation speed, off]bottom clearance, blade angle, types of solid and liquid, etc., on the suspension pattern of sedimentary particles and particle rise height in liquid were investigated with a hemispherical vessel without baffles under low particle concentration. The transition conditions of suspension pattern between regimes I and II, and regimes II and III, were observed visually, and their non]dimensional equations were expressed with an acceptable correlation by varying the above operation factors a great deal. Here, regime I is stagnation of particles on a vessel bottom, II is partial suspension, and III is complete suspension in liquid. The non]dimensional equation of the maximum particle rise height was also successfully obtained. The combination of the non]dimensional equations of transition and maximum particle rise height permitted us to determine the adequate solid/liquid mixing operation conditions without collision of particles with device parts.
en-copyright=
kn-copyright=

en-aut-name=TokuraYuichiro
en-aut-sei=Tokura
en-aut-mei=Yuichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=MiyagawaKeita
en-aut-sei=Miyagawa
en-aut-mei=Keita
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=UddinMd. Azhar
en-aut-sei=Uddin
en-aut-mei=Md. Azhar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KatoYoshiei
en-aut-sei=Kato
en-aut-mei=Yoshiei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=2
en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=3
en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=4
en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University
kn-affil=
en-keyword=mechanical stirring
kn-keyword=mechanical stirring
en-keyword=PIV
kn-keyword=PIV
en-keyword=sedimentary particle
kn-keyword=sedimentary particle
en-keyword=solid/liquid mixing
kn-keyword=solid/liquid mixing
en-keyword=suspension
kn-keyword=suspension
END