Modeling of Flow Heat Transfer Processes and Aerodynamics in the Cabins of Vehicles

Ensuring comfortable climatic conditions for operators in the cabin of technological machines is an important scientific and technical task affecting operator health. This article implements numerical analytical modeling thermal state vehicle cabin, considering external airflow internal ventilation. A method calculating heat transfer coefficients a multilayer wall air under forced convective exchange proposed. The located aerodynamic flow to consider speed direction wind, as well traffic. Inside operation climate system modeled incoming given temperature rate. fields velocities, pressures, temperatures are calculated by computer hydrodynamics averaged Navier–Stokes equations energy equation using turbulence model. To verify model, values obtained were compared with three applied theories from experimental data based on dimensionless complexes velocities method. It shown that use simulation domain makes it possible obtain more accurate results 5% 75% theories, particularly areas large velocity gradients. get than velocities.