Abstract
Yoghurt is an example of thixotropic material. Its behaviour can be represented in terms of the relation between shear rate and time for a given shear stress. For yoghurt that has not undergone previously processing the graph is approximately a straight line; when previous work has been done, the line is displaced. A model relating shear rate, shear stress, temperature and time is proposed. This is used to predict the displacement produced as a result of flow along a pipe. The predicted displacements are compared with experimental results. (c) 2006 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 85-=857 |
| Journal | Journal of Food Engineering |
| Volume | 79 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jan 2007 |
Keywords
- power law
- yoghurt
- Herschel-Bulkley model
- thixotropy
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