On the modelling turbulent transition in turbine cascades with flow separation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F19%3A00503135" target="_blank" >RIV/61388998:_____/19:00503135 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/19:00349595
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0045793019300064?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045793019300064?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compfluid.2019.01.008" target="_blank" >10.1016/j.compfluid.2019.01.008</a>

Result language
angličtina
Original language name
On the modelling turbulent transition in turbine cascades with flow separation
Original language description
The work discusses performance, modification and implementation details of three intermittency based transition models. The intermittency is applied in the SST eddy viscosity turbulence model and in an explicit algebraic Reynolds stress model (EARSM). Experimental results of transonic flows through turbine cascades at different Reynolds numbers are used as test cases, where the interaction of shock wave with laminar or turbulent boundary layer can be distinguished and reproduced in simulations. Of the transition models tested, only the criteria based (gamma-zeta model captures well the influence of Reynolds number on the transition. The criterion for transition on separation bubble has been re-formulated so that the model is local in stream-wise direction and applicable also in 3D flows. The model is still non-local in wall- normal direction but this is found acceptable considering its performance and the fact that its evaluation is made fully automatic in the framework of structured multi-block solver.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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