Abstract
This paper employs the method of dissipative particle dynamics to construct a model of long-chain polymer motion within microchannels. The effects of polymer chain confinement, Reynolds number, and channel structure on the conformational changes and motion rules of individual polymer chains are systematically studied. The result shows that, in the Poiseuille flow in the straight channel, the distribution of the polymer chain’s center of mass is bimodal, and the position and peak value of the double peaks are closely related to the degree of confinement and Reynolds number. In addition, the period of different chain length polymers passing through the slit can be controlled by adjusting the slit width of the T-shaped channel. Based on this mechanism, the separation of different chain length polymers can be achieved, which has great potentials in biomedical field.
| Translated title of the contribution | Investigation on the Movement of the Polymer in Microchannel Based on Dissipative Particle Dynamics |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 872-878 |
| Number of pages | 7 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 46 |
| Issue number | 3 |
| State | Published - Mar 2025 |