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Assessment of filtered gas–solid momentum transfer models via a linear wave propagation speed test |
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| Authors: | Juray De Wilde Denis Constales Geraldine J. Heynderickx Guy B. Marin |
| Affiliation: | 1. Materials and Process Engineering Department (IMAP), Université catholique de Louvain, Réaumur, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium;2. Laboratorium voor Petrochemische Techniek, Ghent University, Krijgslaan 281, Blok S5, B-9000 Gent, Belgium;3. Department of Applied Mathematics, Ghent University, Galglaan, B-9000 Gent, Belgium |
| Abstract: | The propagation speeds of linear waves in gas–solid suspensions depend strongly on the solids volume fraction and the wave frequency. The latter is due to gas–solid momentum transfer and allows a simple test on filtered gas–solid momentum transfer models. Such models may predict linear wave propagation speeds different from those obtained with the non-filtered model at wave frequencies higher than the filter frequency, but not at wave frequencies lower than the filter frequency. |
| Keywords: | Linear wave propagation speed Mixture speed of sound Filtering Gas&ndash solid flow Modeling Eigenvalue analysis |
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