مشخصات پژوهش

The deposition of impurities in pipelines is very common in various pipeline system existing in different industries, hydropower plants. Deposition of excessive silt in pipelines damages different structures of industrial plant, hydropower stations causing cooling system, lubrication system failure. The impurities can be of different shape, size density however proposed thesis aims to narrow down the study for the volumetric fraction of spherical solid particles in fluid (range between 10%-35%) and study the particle fluid interaction for various particle size (0.02mm-0.06mm) in closed pipeline where particles properties is used as per sand properties and water is used as liquid. Designing Nepal are generally based on theoretical calculation and the closure insight regarding the behavior interaction between particle and fluid is required for the effective design of various pipeline related systems. Development of real time particle concentration and flow monitoring system for liquid flow is also a part of research in Nepal for sediment handling. The main object of this work is to study and analyses the behavior of sand in sand-water multiphase flow in closed channel. The main objectives will be accomplished with the following auxiliary objectives: • To develop a numerical framework, set up physics for multiphase flow in closed channel and implement the model in ANSYS CFD • ii. To determine particle concentration patterns for different inlet conditions of velocity, particle size, volume fraction in straight and bend pipe