@article{scholars19920,
             doi = {10.37934/arfmts.114.1.112},
            year = {2024},
           title = {Two-phase Upward Flow-Induced Vibrations in U-bend under Different Orientations},
          number = {1},
            note = {cited By 2},
          volume = {114},
         journal = {Journal of Advanced Research in Fluid Mechanics and Thermal Sciences},
           pages = {1--12},
          author = {Sohail, M. and Pao, W. and Azam, H. and Khan, U.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185687354&doi=10.37934\%2farfmts.114.1.112&partnerID=40&md5=cff6b8f764feaa187b763eb795a918d7},
        abstract = {U-bends are frequently employed in industries to change the direction of fluid flow. Flow Induced Vibrations (FIV) are very prominent due to internal two-phase flow and vary with U-bend orientation. Potential possibilities of spatial orientations of a U-bend make it impractical to predict these vibrations using an experimental approach. This study investigates the two-phase flow-induced vibrations for 0{\^A}o, 30{\^A}o, 60{\^A}o and 90{\^A}o upward flow in a U-bend using CFD. In-plane and out-of-plane directional vibrational data was gathered for these four orientations of U-bend. For constant superficial velocities with void fraction of 0.5, impact of orientation on slug frequencies was observed with Fast Fourier Transformation. In-plane (x-axis) forces applied at the outlet bend significantly increase 39 compared to the corresponding forces at the inlet bend. Forces at the outlet bend along the y-axis (out-of-plane) were reduced by 26, but the forces along the z-axis show a more moderate decrease of 7. This study provides significant data essential to forming a correlation of two-phase flow-induced vibrations with multiple upward flow U-bend orientations. {\^A}{\copyright} 2024, Semarak Ilmu Publishing. All rights reserved.}
}