Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Dynamic calculation of thermal environment of special vehicle cabin based on co simulation
| DOI: | 10.11809/bqzbgcxb2025.03.013 |
| Keywords: | special vehicle cabin; one dimensional air conditioning system; fluid structure coupling; heat capacity of solids; joint dynamic simulation |
| Abstract: | The traditional CFD simulation method of cabin thermal environment usually only considers the airflow structure of the fluid domain in the cabin, ignoring the influence of the solid domain. The dynamic response of the air conditioning system is ignored by the constant air supply boundary condition, which results in the inability to accurately simulate the dynamic change of the cabin thermal environment. Therefore, a three dimensional physical model of cabin and passenger is established for a special vehicle. By means of fluid structure coupling and boundary condition modification, the cabin wall and the solid area in the cabin were treated respectively, and the dynamic influence of the solid area on the cabin thermal environment was considered. The simulation model of one dimensional air conditioning system is established, and the joint dynamic simulation calculation of three dimensional cabin and one dimensional air conditioning system is realized by constructing data exchange and simulation flow. Compared with the experimental results, the results show that the dynamic response curve of the cabin thermal environment calculated by the co simulation method is in better agreement with the experimental results, and can reflect the dynamic change characteristics more accurately. |
| Issue: | Vol. 46 No. 3 (2025) |
| Published: | 2025-03-31 |