TY - JOUR
T1 - Transient-formulation modes and stability of steady-state annular flow
AU - Barnea, Dvora
AU - Taitel, Yehuda
PY - 1989
Y1 - 1989
N2 - The stability of steady-state cocurrent and countercurrent gas-liquid annular flow is considered. Transient formulation, based on the two-fluid model, results in a Kelvin-Helmholtz type of instability. Thus, this formulation is not suited for analyzing the steady-state stability of annular flow, since steady-state annular flow is inherently unstable with respect to the interfacial structure. Various ways of transient formulations which neglect the Kelvin-Helmholtz contribution to instability are proposed, resulting in a simple and useful criterion for the stability of steady-state annular flow.
AB - The stability of steady-state cocurrent and countercurrent gas-liquid annular flow is considered. Transient formulation, based on the two-fluid model, results in a Kelvin-Helmholtz type of instability. Thus, this formulation is not suited for analyzing the steady-state stability of annular flow, since steady-state annular flow is inherently unstable with respect to the interfacial structure. Various ways of transient formulations which neglect the Kelvin-Helmholtz contribution to instability are proposed, resulting in a simple and useful criterion for the stability of steady-state annular flow.
UR - http://www.scopus.com/inward/record.url?scp=0024864418&partnerID=8YFLogxK
U2 - 10.1016/0009-2509(89)85069-9
DO - 10.1016/0009-2509(89)85069-9
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AN - SCOPUS:0024864418
SN - 0009-2509
VL - 44
SP - 325
EP - 332
JO - Chemical Engineering Science
JF - Chemical Engineering Science
IS - 2
ER -