Implementation of Non-Newtonian Fluid Properties for Compressible Multiphase Flows in OpenFOAM

• 作者: Wojciech Kowalczyk
• 来源期刊: 流体动力学(英文)
• 学科: 物理学
• 关键词: OPENFOAM Non-Newtonian Fluid Multiphase Flow Compressible Flow
• 年，卷（期）: 2020,（2）
• 页码范围: 135-150
• 页数: 16页
• 分类号: O35

摘要

The paper presents the implementation of non-Newtonian fluid properties for compressible multiphase solver in the open source framework OpenFOAM. The transport models for Power Law, Cross Power Law, Casson, Bird-Carreau and Herschel-Bulkley fluids were included in the thermophysical model library. Appropriate non-Newtonian liquids have been chosen from literature, and pressure driven test simulations are carried out. Therefore, the solver compressibleInterFoam is used to compute air-liquid mixture flows over a backward facing step. A validation of the novel models has been performed by means of a sample-based comparison of the strain rate viscosity relation. The theoretical rheological properties of the selected liquids agree well with the results of the simulated data.