Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder

›› 2010, Vol. 18 ›› Issue (2): 177-184.

• FLUID FLOW AND TRANSPORT PHENOMENA • Next Articles

Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder

RUAN Chunlei, OUYANG Jie

Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an 710129, China

Received:2009-07-02 Revised:2009-12-16 Online:2010-04-28 Published:2010-04-28
Supported by:
Supported by the National Natural Science Foundation of China(10590353,10871159);the National Basic Research Program of China(2005CB321704);the Doctoral Foundation of Northwestern Polytechnical University(CX200817)

Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder

阮春蕾, 欧阳洁

Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an 710129, China

通讯作者: OUYANG Jie,E-mail:jieouyang@nwpu.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China(10590353,10871159);the National Basic Research Program of China(2005CB321704);the Doctoral Foundation of Northwestern Polytechnical University(CX200817)

Abstract

Abstract: A collocated finite volume method on unstructured meshes is introduced to simulate the viscoelastic flow of the polymer melt with viscous dissipation past a confined cylinder.The constitutive equation for the simulations is non-isothermal FENE-P model,which is derived from the molecular theories.The temperature effect on the macroscopic fields(e.g.,velocity,stress) and microscopic fields(e.g.,molecular orientation,deformation,stretch) is investigated by comparison of isothermal and non-isothermal situations.This investigation indicates that temperature rise caused by viscous dissipation should not be neglected since it has significant effect on the macroscopic and microscopic properties of the polymer melt.

Key words: non-isothermal, FENE-P model, unstructured meshes, finite volume method, cylinder flow

摘要： A collocated finite volume method on unstructured meshes is introduced to simulate the viscoelastic flow of the polymer melt with viscous dissipation past a confined cylinder.The constitutive equation for the simulations is non-isothermal FENE-P model,which is derived from the molecular theories.The temperature effect on the macroscopic fields(e.g.,velocity,stress) and microscopic fields(e.g.,molecular orientation,deformation,stretch) is investigated by comparison of isothermal and non-isothermal situations.This investigation indicates that temperature rise caused by viscous dissipation should not be neglected since it has significant effect on the macroscopic and microscopic properties of the polymer melt.

关键词: non-isothermal, FENE-P model, unstructured meshes, finite volume method, cylinder flow

RUAN Chunlei, OUYANG Jie. Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder[J]. , 2010, 18(2): 177-184.

阮春蕾, 欧阳洁. Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder[J]. , 2010, 18(2): 177-184.

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Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder

Numerical Simulation of the Non-isothermal Viscoelastic Flow Past a Confined Cylinder

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