Computation of a turbulent natural convection in a rectangular cavity with the low-reynolds-number differential stress and flux model

Experimental and numerical investigation of natural convection in a double skin facade

“…The temperature measurement sensors have an accuracy of ±0.2 K, and the uncertainty of the velocity measurements is 0.02 m/s. This comprehensive experimental study by King [4] is preferred by various researchers for validating natural convection simulations inside tall cavities [9,13].…”

“…That is, there is no air movement from the exterior environment to the cavity or from the cavity to the outside, and there is a temperature difference between the interior and exterior surfaces. This phenomenon of differentially heated/cooled cavities has been studied extensively in the literature [2][3][4][5][6][7][8][9][10][11][12][13]. On the other hand, some double skin facade applications have been designed considering open cavity natural convection [14][15][16][17][18].…”

Turbulence modeling of natural convection in enclosures: A review

“…As shown in the figures, the agreement between the measured data and the predictions by the V2-f, SMC-DH and EBM models is fairly good although there exist small differences. The SMC-DH means the second moment closure used by Dol and Hanjalic [14] and Choi et al [15]. The prediction by the two-layer model is significantly different from the measured data.…”

“…Shin et al [16] also developed a differential flux model (DFM) based on the elliptic-blending model by Thielen et al [8] where the differential equations are solved for the turbulent heat fluxes. It is noted that the secondmoment closure used by Dol and Hanjalic [14] or Choi et al [15] is different from the DFM by Shin et al [16] in that the latter model does not include any wall-related parameters.…”

“…Since the second-moment closure computes the Reynolds stresses more accurately than the two-equation turbulence models, and it usually produces better solutions. The low-Reynolds number second-moment closures applied to the analysis of the turbulent natural convection are rarely seen in the literatures and the examples using the near wall second-moment closure are the works by Peeters and Henkes [13], Dol and Hanjalic [14] and Choi et al [15]. Shin et al [16] also developed a differential flux model (DFM) based on the elliptic-blending model by Thielen et al [8] where the differential equations are solved for the turbulent heat fluxes.…”