PREDICTION OF THE NONLINEAR VISCOELASTIC PROPERTIES OF A HARD WHEAT-FLOUR DOUGH USING THE BIRD-CARREAU CONSTITUTIVE MODEL

被引:64
作者
DUS, SJ [1 ]
KOKINI, JL [1 ]
机构
[1] RUTGERS STATE UNIV,NEW JERSEY AGR EXPT STN,CTR ADV FOOD TECHNOL,DEPT FOOD SCI,POB 231,NEW BRUNSWICK,NJ 08903
关键词
D O I
10.1122/1.550110
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The Bird-Carreau model was used to predict the steady viscosity tj, the primary normal stress coefficient 01, and the small amplitude oscillatory properties 77' and 7f(o for a hard wheat flour dough containing 40% total moisture in the region of frequencies of 0.01 to 100 rad/s for the dynamic viscoelastic properties and a region of 10 5through 103s 1for steady shear properties. The model accurately represented the experimental data in the shear rate/frequency region tested. © 1990, The Society of Rheology. All Rights Reserved.
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页码:1069 / 1084
页数:16
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