Modelling and Simulation of Viscoelastic Flow Instabilities

粘弹性流体模型的建立与理论研究 不稳定性将被执行。区域分解和 伪谱数值代码将用于探索 代表聚合物流动构型稳定性 处理系统.主要重点将放在耦合 这种模型模拟近壁区域， 聚合物流过固体表面，基于模拟 微观结构，以探索壁面滑移对流动的影响 不稳定性 这项工作预计将导致更有力和现实的 复杂聚合物过程的数值模拟。建模 还涉及从具有聚合物的流体减阻， 添加剂

Model development and theoretical studies of viscoelastic flow instabilities are to be carried out. Domain decomposition and pseudospectral numerical codes will be used to explore the stability of flow configurations representative of polymer processing systems. The main focus will be on the coupling of such models to one simulating the near-wall region for polymers flowing past solid surfaces, based on simulated microstructures, to explore the effect of wall slip on flow instabilities. The work is expected to lead to more robust and realistic numerical modeling of complex polymer processes. The modeling also relates to drag reduction from fluids with polymer additives.