期刊
FLOW TURBULENCE AND COMBUSTION
卷 91, 期 4, 页码 827-848出版社
SPRINGER
DOI: 10.1007/s10494-013-9480-x
关键词
LES; RANS; Turbine; Labyrinth; Hybrid
资金
- The UK Engineering and Physical Sciences Research Council (EPSRC) [EP/H001395/1]
- Engineering and Physical Sciences Research Council [EP/H001395/1, EP/G027633/1] Funding Source: researchfish
- EPSRC [EP/H001395/1, EP/G027633/1] Funding Source: UKRI
Five Large Eddy Simulation (LES) and hybrid RANS-NLES (Reynolds-Averaged Navier-Stokes-Numerical-LES) methods are used to simulate flow through a labyrinth seal geometry and are contrasted with RANS solutions. Results show that LES and RANS-NLES is capable of accurately predicting flow behaviour of two seal flows with a scatter of less than 5 %. RANS solutions show the potential to perform poorly for the turbulence models tested. LES and hybrid RANS-NLES are found to be consistent and in agreement with measurements, providing a flexible numerical platform for design investigations. It also allows greater flow physics insights.
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