Validation of Interface Capturing and Tracking techniques with different surface tension treatments against a Taylor bubble benchmark problem

The Priority Program SPP 1506 Transport Processes at Fluidic Interfaces by the German Research Foundation DFG proposes a benchmark problem for validation of interfacial two-phase flow solvers by means of specifically designed experiments for Taylor Bubble Flow. The benchmark experiments aim at providing detailed and local data as a basis for validation. This contribution demonstrates its use by assessing and approving the reliability and accuracy of the solvers used by several research groups within the priority program. Special emphasis is set upon different approaches to surface tension calculation both for interface capturing and interface tracking methods. Data and material of the presented benchmark can be freely downloaded from the website of SPP 1506 (http://www.dfg-spp1506.de/taylor-bubble).