| Abstract |
In this study, new approaches are developed to predict the drag and assess its potential uncertainty of a non-Newtonian fluid in a multiparticle system. First, a new and simpler approximate solution of power-law fluid flow is developed using the free surface cell model. Second, the uncertainty of drag in a fractal multiparticle system is investigated by treating the heterogeneous voidage in the system as a truncated power-law fractal distribution. The results demonstrate that the developed simpler approximate solution works well compared to the analytical solutions and experimental data. Incorporating truncated power-law fractal voidage can better capture the experimental data. The voidage heterogeneity increases the drag of the power-law fluid moving through the multiparticle system. Strong shear-thinning effects of power-law fluids and high mean voidage diminish the effect of voidage heterogeneity. The flow drag of power-law fluid in the heterogeneous multiparticle system decreases with increasing fractal dimension. |
| Authors |
Jin Zhu  
|
| Journal Info |
Elsevier BV | Powder Technology , vol: 428
, pages: 118838 - 118838
|
| Publication Date |
10/1/2023 |
| ISSN |
0032-5910 |
Type |
article |
| Open Access |
closed
|
| DOI |
https://doi.org/10.1016/j.powtec.2023.118838 |
| Keywords |
Fractal Dimension (Score: 0.480932)
|
