Slug frequencies or slug lengths are typically required as one of the closure relations in slug tracking models. Due to the difficulties of modelling the highly nonlinear interface motion prior to the formation of slugs, details of slug formation are still poorly understood. As a consequence, predictions of slug frequencies based on mechanistic models have had a limited success so far. For this reason, many thousands of measurements have been performed in which slug frequencies have been determined experimentally.

This content is only available via PDF.
You can access this article if you purchase or spend a download.