Obtaining the shear stress shear rate relationship and yield stress of liquid foods from parallel disk data

Campbell, Graeme R., Leong, Yee-Kwong, and Yeow, Y. Leong (2005) Obtaining the shear stress shear rate relationship and yield stress of liquid foods from parallel disk data. Journal of Food Science, 70 (1). pp. 50-55.

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Abstract

In this article, Tikhonov regularization is used to process the steady-shear data generated in the parallel disk geometry by a commercial viscometer for a number of liquid foods. This way of processing parallel disk data has the advantage of being independent of any rheological model. The resulting shear stress versus shear rate relationships cover the maximum range of shear rates consistent with the experimental data. It will also be shown that if the liquid food being tested has a yield stress, Tikhonov regularization will automatically obtain an estimate of this stress. For each of the liquid foods investigated, the resulting rheological properties are used to back-calculate the torque and rotational speed data points and compare with the original experimental data.

Item ID: 6591
Item Type: Article (Refereed Research - C1)
Keywords: Bingham viscosity; parallel disk viscometry; shear stress- shear rate curve; Tikhonov regularization; yield stress
ISSN: 1750-3841
Date Deposited: 09 Feb 2010 23:50
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090499 Chemical Engineering not elsewhere classified @ 100%
SEO Codes: 86 MANUFACTURING > 8601 Processed Food Products and Beverages (excl. Dairy Products) > 860108 Processed Fruit and Vegetable Products (incl. Fruit Juices) @ 51%
86 MANUFACTURING > 8602 Dairy Products > 860299 Dairy Products not elsewhere classified @ 49%
Citation Count from Web of Science Web of Science 2
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