The effect of fluid compressibility on the simulation of sloshing impacts
Godderidge, Bernhard, Turnock, Stephen, Earl, Chris and Tan, Mingyi (2009) The effect of fluid compressibility on the simulation of sloshing impacts. Ocean Engineering, 36, (8), 578-587. (doi:10.1016/j.oceaneng.2009.02.004).
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Description/Abstract
Resonant and near-resonant sway-induced sloshing flow in a rectangular container is used to compare various combinations of compressibility models for air and water. The numerical model is implemented in a commercial RANS CFD code. A criterion based on wave propagation is developed to assess the
importance of including fluid compressibility. For sloshing flows with low levels of fluid impact this can be simulated with incompressible fluid models for both air and water. When modelling sloshing at low filling levels with a travelling wave, which generates large air bubble entrainment, the choice of fluid
compressibility model is shown to have a significant influence on pressure magnitude and frequency of oscillation required for structural assessment. Further comparisons with theoretical models show that a full thermal energy compressibility model is also required.
| Item Type: | Article |
|---|---|
| ISSNs: | 0029-8018 (print) |
| Related URLs: | |
| Keywords: | sloshing, computational fluid dynamics, compressibility, fluid impact, pressure oscillation frequency |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering Q Science > QA Mathematics > QA76 Computer software |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions |
| Item ID: | 66251 |
| Date Deposited: | 21 May 2009 |
| Last Modified: | 01 Jun 2011 05:16 |
| Contributors: | Godderidge, Bernhard (Author) Turnock, Stephen (Author) Earl, Chris (Author) Tan, Mingyi (Author) |
| Date: | 7 February 2009 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/66251 |
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The effect of fluid compressibility on the simulation of sloshing impacts. (deposited 21 May 2009)
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