CFD Analysis Of Multi-Phase Flow And Its Measurements

Abstract

Multiphase flow occurs when more than one material is present in a flow field and the materials are present in different physical states of matter or are present in the same physical state of matter but with distinct chemical properties. The materials present in multiphase flow are often identified as belonging to the primary or secondary phases. The primary phase is characterized as the phase that is continuous about, or enveloping of, the secondary phase. The secondary phase is thought to be the material that is distributed throughout the primary phase. Each phase present in multiphase flow may be either laminar or turbulent, which leads to a variety of potential flow regimes for multiple phases in the same channel. Project is based on two-phase flow and its measurement (water + air/vapor). This is frequently encountered in thermal and nuclear power plants, R&A/C and cryogenic applications, chemical industries and biotechnology etc., the arrangement of a vertical tube with two water inlets and three air inlets. By varying air and water flow rates following things are demonstrated and calculated: Flow regime identification through visualization Pressure drop measurement The analysis carried out by the flow of air + water mixture using by Computational Fluid Dynamics (CFD) technique.