Improvement of Physical Modeling for Vortex-Dominated Flows
Abstract
In this work the advantages of applying Reynolds stress models over the eddy-viscosity RANS turbulence models and scale-resolving simulation methods for the flows characterized by separation from smooth surfaces and subsequent vortex formation are explored. To this end, the flow over a spheroid, a delta wing and a diamond wing, which all exhibit vortex separation, are investigated. For all the aforementioned configurations, predictions obtained by different approaches are compared to each other and to experiments. In this report, first, improvements and detriments observed in Reynolds stress model predictions compared to other RANS predictions are presented. Later, the performance of a Reynolds stress model is compared to scale-resolving simulations of hybrid RANS/LES type, and the predictive capabilities of the different methods and their advantages for the aforementioned flows
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 24, 2022
- Accession Number
- AD1165450
Entities
People
- A. Krumbein
- A. Probst
- Andreas Krumbein
- V. Togiti
Organizations
- German Aerospace Center