Dynamic Modeling and Simulation of Flow Characteristics of Hot Asphalt in Pipeline System

Abstract:

In order to achieve the description of flow dynamics of hot asphalt in pipeline system,and to solve the accuracy problems of process control of asphalt,this paper presents a hot asphalt piping system modeling way based on the theory of bond graph.Under certain temperature in the hot asphalt pipeline system,the nonNewtonian fluid model of hot asphalt,as well as the pipeline system,pumps,valves,flow meters and other parts and components models by using bond graph theory are established.The project solution of the flow characteristics of hot asphalt in pipeline system is realized,which is easy to describe,providing a strong theoretical support for parameters design of the components matching in asphalt piping system.The effectiveness of hot asphalt pipeline system model based on the bond graph theory is proved by a comparison of the steadystate results of physical experiment and system simulation.