ABSTRACT
Flow-induced vibrations due to the two-phase flow (air–water) have been largely investigated earlier by many researchers. In this work, an experimental set up has been fabricated to study the effect of two-phase flow (air–water) characteristics on pipe vibration for the different support condition, that is, cantilever end condition and both end fixed condition. To carry out the experiments, the test section is made of steel material of 0.0239 m in 584diameter and 1.2 m in length. Experiments are carried out for different flow patterns or flow characteristics and void fraction. The flow characteristics are obtained by varying the quantity of air and water flowing through test section. At the same time, the vibrations induced due to two-phase flow (air–water) for each pattern are measured in terms of acceleration (rms) with the help of an accelerometer from fast Fourier transform analyzer. The results of experimental analysis are compared with those obtained from computational fluid dynamics (CFD) analysis (Fluent 15.0) software. Moreover, these results are found to be in good agreement and satisfactory with 4–10% error between experimental analysis and CFD analysis.
