Effects of curvature radius ratio of 90-degree pipe elbow on FIV signal

Ahmed A. Abuhatira (Lead / Corresponding author), Salim M. Salim, Hussein A. Hussein, Jan B. Vorstius

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Investigation on Flow Induced Vibration (FIV) in pipes is relatively new. Previous publications focused on characterizing the influences of geometric and material properties of a straight pipe. The current study investigates the influence of the curvature radius ratio in a90-degreepipe elbow for ratios (Rc/D = 1.5, 2, 2.5, 3 and 3.5). Reynolds Stress Model (RSM) is coupled with a finite element structural model to simulate the fluid-structure interaction (FSI) using one-way coupling. The RSM turbulence model and FSI model are validated against published experimental and numerical results[1][2][3]. Preliminary results presented in the figure below indicate that vibration signal increases as the curvature ratio decreases in a quadratic manner. This functional relationship can be used as a design tool, and with further application in improving non-intrusive flow measurement techniques.
Original languageEnglish
Number of pages1
Publication statusPublished - 28 May 2020
Event33rd Scottish Fluid Mechanics Meeting 2020 - Heriot Watt University, Edinburgh, United Kingdom
Duration: 28 May 202028 May 2020


Conference33rd Scottish Fluid Mechanics Meeting 2020
Country/TerritoryUnited Kingdom


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