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Přestup tepla a hmoty u syntetizovaného impaktního proudu
Trávníček, Zdeněk ; Hyhlík, Tomáš ; Maršík, František
A zero–net–mass–flux actuator was used to generate a synthetic air jet. The local mass transfer in the jet impingement configuration was investigated using the naphthalene sublimation method. Based on the heat/mass transfer analogy, the mass transfer data have been converted to the corresponding heat transfer data. The results have been compared with the data for continuous impinging jets; the difference is less than 11%.
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Numerické modelování složitých turbulentních proudění
Kozel, K. ; Louda, Petr ; Příhoda, Jaromír
The work deals with the numerical solution of turbulent impinging jet and round jet in a cross flow. The mathematical model is based on averaged Navier-Stokes equations closed by a turbulence model. Turbulence models used are a low-Reynolds-number eddy-viscosity model and/or an explicit algebraic Reynolds stress model. Numerical results are compared with experimental data. In case of impinging jet flow, the heat transfer is also solved.
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