TY - JOUR
T1 - Unsteady flow of a non-linear viscoelastic fluid in pipes
AU - Letelier, Mario F.
AU - Madariaga, Nicolás
AU - Siginer, Dennis A.
PY - 2004
Y1 - 2004
N2 - Flow of a viscoelastic fluid in round pipes is analyzed for the case where the pressure gradient is oscillatory with varying amplitude. The fluid is modelled according to Phan-Thien-Tanner's constitutive equation. The analysis is carried out by using the perturbation method in which a material parameter is considered small. Velocity field and other kinematic and dynamic variables are evaluated for a range of relevant parameters. The results are compared with the base Newtonian and linear Maxwell flows. The effect of the PTT model in these type of flows is highlighted.
AB - Flow of a viscoelastic fluid in round pipes is analyzed for the case where the pressure gradient is oscillatory with varying amplitude. The fluid is modelled according to Phan-Thien-Tanner's constitutive equation. The analysis is carried out by using the perturbation method in which a material parameter is considered small. Velocity field and other kinematic and dynamic variables are evaluated for a range of relevant parameters. The results are compared with the base Newtonian and linear Maxwell flows. The effect of the PTT model in these type of flows is highlighted.
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U2 - 10.1115/IMECE2004-59693
DO - 10.1115/IMECE2004-59693
M3 - Article
AN - SCOPUS:21444454876
VL - 260
SP - 829
EP - 833
JO - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
JF - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
SN - 0888-8116
M1 - IMECE2004-59693
ER -