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