Numerical investigation of transient thermal and fluidynamic fields in an executive aircraft cabin

Abstract

International audienceThe objective of the present work is the numerical simulation of the thermal and fluid dynamic field in the cabin of an executive aircraft. A transient analysis is conducted on three and two-dimensional models of an executive aircraft cabin and a comparison of the two approaches is provided. In the model, a global thermal conductance was considered to take into account both the external environment and the fuselage material. The results, provided in terms of graphs and contours, refer to the three and two-dimensional models with inclined top inlets with respect to the vertical direction of an angle of 45°. A good qualitative agreement between the results of the two and three dimensional models is detected

Global airflow field distribution in a cabin mock-up measured via large-scale 2D-PIV

“…However, to ensure that the CFD results are reliable, the simulation method must be validated by experimental results [8]. Because of the lack of reliable experimental data, researchers have used data from other enclosed environments to validate their models [6,9]. Although CFD codes have been validated for other systems, it is important for these numerical models to be validated for each specific scenario to which they are applied, especially because aircraft cabin environments have highly complex interior geometries and distinctive features [10].…”

Mesh Type and Number for the CFD Simulations of Air Distribution in an Aircraft Cabin

“…Today, because commercial CFD software can generate tetrahedral meshes automatically, such meshes are favored by inexperienced users. Many researchers [24,25] have applied these meshes to air cabins. However, a tetrahedron is not as accurate as a hexahedron with the same grid number [26,27].…”

Parametric Investigation Using Computational Fluid Dynamics of the HVAC Air Distribution in a Railway Vehicle for Representative Weather and Operating Conditions

“…Results show a homogeneously distributed temperature around the average temperature in all cases, especially for summer cases (1-4), with percentages above 98%. In winter cases (5)(6)(7)(8), in which the temperature gradients are higher, the percentages in the range are lower (percentages above 83%). In these winter cases, the results are better for sections X1 and X4 (percentages above 95%) in comparison with planes X2 and X3.…”

“…Bianco et al [8] studied numerically-transient simulations of the thermal and fluid dynamic fields in the cabin of an executive aircraft, considering 2D and 3D models. In other papers [9][10][11][12][13][14] the studies have been devoted to air quality and the distribution of pollutants, mainly CO and CO 2 .…”