Fluid dynamics in a bubble column: New experiments and simulations
| Autor: | Katharina Zähringer, Péter Kováts, Roland Rzehak, Manuel Krauß |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
model validation
Computer science Closure (topology) General Physics and Astronomy 02 engineering and technology Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Set (abstract data type) 020401 chemical engineering 0103 physical sciences Fluid dynamics Range (statistics) 0204 chemical engineering Fluid Flow and Transfer Processes shadowgraphy business.industry Mechanical Engineering Experimental data Observable Mechanics PIV bubble-columns Temporal resolution CFD simulation Euler Euler two fluid model business |
| Zdroj: | International Journal of Multiphase Flow 89(2017), 299-312 |
| ISSN: | 0301-9322 |
| DOI: | 10.1016/j.ijmultiphaseflow.2016.09.024 |
| Popis: | Bubble columns are a common type of multiphase reactors used in many chemical engineering applications. Optimization and scale-up of bubble column processes is a complex task that can greatly benefit from multiphase CFD simulations. Calculations on industrial scales become feasible by the Euler-Euler two-fluid model, but suitable closure relations describing interfacial exchange processes are needed for practical application. Concerning pure fluid dynamics of dispersed gas-liquid multiphase flow an ongoing effort has led to a validated set of closures that is applicable under a rather broad range of conditions. The availability of new experimental data with large spatial and temporal resolution and high accuracy for a comprehensive set of observables and a range of different conditions provides the opportunity for further testing of this model. In this way the reliability of the obtained predictions is continually increased. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect