Abstract Increasing power requirements along with weight and space constrains requires implementation of more intelligent thermal management systems. The design and development of such systems can only be possible with a thorough understanding of component and system level thermal loads. The present work implements 1-D and 3-D unsteady CFD based simulation tools in a military ground vehicle design process. Both powertrain cooling and HVAC systems are simulated in various operating conditions on a HPC Computer Cluster using multiple fidelity tools. HVAC system variables are optimized with gradient based optimization libraries. The simulation results are compared and validated with experimental tests.
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