Turbulent natural convection in a vertical parallel-plate channel with asymmetric heating

Effect of width and temperature of a vertical parallel plate channel on the transition of the developing thermal boundary layer

“…At y = 2.94 m the turbulent kinetic energy reaches its maximum at the centre of the channel, which has an agreement with the experimental data of Yilmaz and Fraser [2007]. And, particularly, the Realizable model predictions are more close to the experiment than the other two models.…”

“…Steady state two-dimensional numerical model was developed and the results showed that the thermal field, which was obtained by the low Reynolds number k-ԑ model of Yang and Shih [1993] with a uniform pressure inlet condition, was very close to the experimental results of Miyamoto et al [1986]. Experimental and numerical work was also done by Yilmaz and Fraser [2007] on the turbulent free convection boundary layer in a vertical parallel plate channel with asymmetric heating.…”

“…The model geometry along with the Cartesian coordinate system is shown in Figure 1. For the comparison with the experimental data, the model geometry is studied under the same physical dimensions of the experimental model of Yilmaz and Fraser [2007], where L = 3.0 m and b = 0.1 m.…”

“…It is important to note here that when a comparison with the experimental data of Yilmaz and Fraser [2007] is presented, the model is studied under the experimental conditions where the inlet temperature is assumed to be 23°C. The isothermal conditions for the heated plate is set at the temperature of 100°C, and the turbulent intensity at the inlet is measured to be 13%.…”

“…A comparison with the experimental data of Yilmaz and Fraser [2007] is made; and it is found that the Realizable turbulent model gave the best predicted results compared to the RNG and standard models.…”