Abstract
The nonisothermal flow of a nonlinear hereditary liquid within a ring-shaped channel after instantaneous removal of a pressure differential is studied.
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Abbreviations
- r,ϕ, z:
-
cylindrical coordinates
- R1 :
-
interior cylinder radius
- R2 :
-
exterior cylinder radius
- t:
-
time
- Ct(t), C −1t (t):
-
Cauchy and Finger finite deformation tensors
- E:
-
unit tensor
- D:
-
deformation rate tensor
- m(t):
-
memory function
- ɛ:
-
model parameter
- α:
-
relaxation time spectrum parameter
- ζ(α):
-
Riemann zeta-function
- tr:
-
tensor trace operator
- λk :
-
relaxation time
- λ :
-
maximum relaxation time in spectrum
- ηo :
-
initial viscosity
- ηk :
-
constants with dimensions of viscosity
- ρ:
-
liquid density
- ∂p/∂z:
-
pressure gradient
- T:
-
excess stress tensor
- θ:
-
temperature
- vz :
-
z-component of velocity
- V:
-
characteristic velocity
- Ea :
-
process activation energy
- R:
-
universal gas constant
- ¯Q=Q/2πR 21 Vδ:
-
dimensionless flow rate
Literature cited
Z. P. Shul'man, B. M. Khusid, and Z. A. Shabunina, “Development of flow of an elastoviscous liquid within a tube under the influence of a constant pressure gradient,” Inzh.-Fiz. Zh.,45, No. 2, 245–250 (1983).
I. Etter and W. R. Schowalter, “Unsteady flow of an Oldroyd fluid in a circular tube,” Trans. Soc. Rheol.,9, No. 2, 351–369 (1965).
N. D. Waters and M. J. King, “Unsteady flow of an elasticoviscous liquid,” Rheol. Acta,9, No. 3, 345–355 (1970).
P. Townsend, “Numerical solutions of some unsteady flows of elasticoviscous liquids,” Rheol. Acta,12, No. 1, 13–18 (1973).
Z. P. Shul'man, S. M. Aleinikov, B. M. Khusid, É. É. Yakobson, “Rheological equations of state of flowing polymer media (analysis of the state problem),” Preprint No. 3, ITMO Akad Nauk BSSR, Minsk (1981).
G. V. Vinogradov and A. Ya. Malkin, Polymer Rheology [in Russian], Khimiya, Moscow (1977).
A. G. Fredricson, Principles and Application of Rheology, Prentice-Hall, New York (1964).
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 45, No. 5, pp. 850–854, November, 1983.
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Shul'man, Z.P., Khusid, B.M. & Shabunina, Z.A. Motion of an elastoviscous liquid within a tube after removal of a pressure differential. Journal of Engineering Physics 45, 1337–1341 (1983). https://doi.org/10.1007/BF01254747
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DOI: https://doi.org/10.1007/BF01254747