To strengthen the convective heat transfer ability of the limited cooling air in the cabin, temperature field homogenization (TFH) in the core flow region of the engine block area was achieved. The TFH optimization model helped minimize the temperature gradient in the core flow region and maximize it at the heat transfer boundary, and the optimum vector field and flow path were obtained. More comprehensive changes to the structural design were made according to the TFH.

A dynamic thermal-mechanical model of the spindle-bearing system is proposed to investigate the transient thermal characteristics. A spindle-bearing system with adjustable and measurable preload is designed and constructed. Validated by the experiments, thermal feedbacks on boundary conditions and thermal contact conductance are non-ignorable for the accurate simulation. The proposed model could also be generalized in other mechanical systems to improve the prediction accuracy.

This paper presents a numerical investigation in which thermal performance characteristics of pin fin heat sinks enhanced with phase-change materials (PCM) designed for electronic devices cooling are studied. The main purpose of this article is to investigate different effective parameters on the heat sink base temperature and melt fraction. The studied geometric parameters are the number, thickness and height of fins.