TY - JOUR
T1 - Heat transfer intensification by jet impingement-numerical analysis using RANS approach
AU - Kura, Tomasz
AU - Fornalik-Wajs, Elzbieta
AU - Wajs, Jan
AU - Kenjeres, Sasa
PY - 2019
Y1 - 2019
N2 - Jet impingement is a method of the heat transfer enhancement applied in the engineering systems. The idea is to generate fast-flow fluid jet which impinge on the heated (or cooled) surface, causing significantly higher heat transfer rate. Although some flat surface jet impingement cases are described in the literature, the validated data is still limited. The reason is coming from the fact, that these flows are hydrodynamically complex. Therefore the numerical analysis is necessary to understand the phenomena, especially in the range of turbulent flow. The well-known and accurate method is Reynolds Averaged Navier-Stokes (RANS) approach. However, depending on the applied turbulence model, various results can be obtained. The reason is that the jet impingement strongly depends on the complex boundary layer effects and their resolving is still challenging for RANS models and until now it is their weakest point. In the paper, the hydrodynamic and thermal, numerical results of jet impingement are presented, depending on selected RANS based models. The aim was to indicate their ability to anticipate the turbulence parameters.
AB - Jet impingement is a method of the heat transfer enhancement applied in the engineering systems. The idea is to generate fast-flow fluid jet which impinge on the heated (or cooled) surface, causing significantly higher heat transfer rate. Although some flat surface jet impingement cases are described in the literature, the validated data is still limited. The reason is coming from the fact, that these flows are hydrodynamically complex. Therefore the numerical analysis is necessary to understand the phenomena, especially in the range of turbulent flow. The well-known and accurate method is Reynolds Averaged Navier-Stokes (RANS) approach. However, depending on the applied turbulence model, various results can be obtained. The reason is that the jet impingement strongly depends on the complex boundary layer effects and their resolving is still challenging for RANS models and until now it is their weakest point. In the paper, the hydrodynamic and thermal, numerical results of jet impingement are presented, depending on selected RANS based models. The aim was to indicate their ability to anticipate the turbulence parameters.
UR - http://www.scopus.com/inward/record.url?scp=85069455946&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/201910801025
DO - 10.1051/e3sconf/201910801025
M3 - Conference article
AN - SCOPUS:85069455946
SN - 2555-0403
VL - 108
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 01025
T2 - 2018 Energy and Fuels, EF 2018
Y2 - 19 September 2018 through 21 September 2018
ER -