摘要：The present work is motivated by the engineering need to simulate the multiphase flows in the course of the start-up of a long-distance crude oil pipeline. We propose a model for compressible multiphase flows with heat and mass transfer and diffusion processes in elastic pipelines. The model is derived with two approaches, i.e., (a) the spatial averaging procedure of a single phase model and (b) the Arbitrary Lagrangian Eulerian (ALE) formulation of the Baer-Nunziato model with quasi-1D approximation. The diffusion processes include the viscous dissipation, wall friction, heat conduction, and heat exchange with external environment. In particular, the wall friction consists of steady friction term calculated by Darcy-Weisbach formula, and the unsteady friction determined by the instantaneous-acceleration-based (IAB) model. The unsteady friction modifies the characteristic structure of the hyperbolic part of the model. For the solution of the hyperbolic part, we propose a three-wave approximate Riemann solver incorporating the unsteady friction term. Mass and heat transfer are realized via instantaneous relaxations of the chemical potential and temperature, respectively. Efficient iterative relaxation procedures for N-phase flows have been proposed. We have validated the proposed model and numerical methods against some benchmark multiphase problems and applied the model to calculate the start-up of a realistic liquid pipeline with intermediate pump station boundary condition. ? 2023 Elsevier Inc.

ISSN号：0021-9991

卷、期、页：卷490

发表日期：2023-10-01

期刊分区（SCI为中科院分区）：二区

收录情况：EI（工程索引）

发表期刊名称：Journal of Computational Physics

参与作者：张超

第一作者：苏怀,张劲军

论文类型：期刊论文

论文概要：张超,苏怀,张劲军，On the computation of compressible multiphase flows with heat and mass transfer in elastic pipelines，Journal of Computational Physics，2023，卷490

论文题目：On the computation of compressible multiphase flows with heat and mass transfer in elastic pipelines