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Project

Numerical simulation of expanding swirling flows with a hybrid RANS/LES turbulence model

Outputs and Outcomes

Code

01P05105

Duration

15 October 2007 → 30 September 2008

Funding

Regional and community funding: Special Research Fund

Promotor

Erik Dick

Research disciplines

Natural sciences
- Fluid mechanics
Engineering and technology
- Energy conversion

Keywords

hybrid RANS-LES turbulence model precession expanding swirling flow vortex breakdown

Project description

Vortex precession and vortex breakdown in swirling abruptly expanding jets are simulated with a hybrid RANS-LES turbulence model. In the core of the flow, coarse grid LES is used with an e-model as subgrid model (1 dynamic euation). In wall vicinity, the same model is used as RANS model with a mixed low Reynolds number and wall function description.

English

Dutch

English

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