压延胶片与冷却鼓传热过程的数值模拟

压延成型胶片在冷却鼓上的冷却对胶片质量起着至关重要的作用。在胶片冷却过程中，需控制冷却鼓数量和冷却水流量实现合理有效的冷却，以保证胶片的质量。应用Fluent软件对胶片在冷却鼓上的稳态换热过程进行数值模拟。针对固体动边界传热模拟技术的限制，提出了热-流-固耦合换热下胶片冷却的模拟方法，并对6种不同胶片在10个冷却鼓上的冷却过程进行了模拟，得到了胶片的温度分布。与实测数据对比发现，模拟结果和实测结果吻合，验证了本文提出的传热模拟方法的合理性，解决了薄膜移动边界传热模拟问题。

Numerical simulation of the heat transfer between a rolling rubber-film and cooling-drums

Cooling of a rolling rubber-film on cooling-drums plays a vital role in determing the quality of the rubber-film. In the cooling process, the number of the cooling-drums and the amount of the cooling water need to be controlled in order to achieve effective cooling and good quality rubber-films. In this paper, the software Fluent is used to simulate the stable heat transfer process of a rubber-film on cooling-drums. In order to solve the problem of simulating the heat transfer for a solid film moving on rotating drums, a method which we call rubber-film cooling simulation under heat-fluid-solid coupled heat transfer is proposed. Using this method, the cooling processes of six rubber-films on ten cooling-drums were simulated and the temperature distributions in the rubber-films were obtained. The simulation results well agree with experiment, confirming the validity of the method proposed, and thus the problem of heat transfer from moving solid films to rotating drums has been solved.