ボルテックスチューブの非平衡エネルギー輸送プロセスの解明

抄録

Vortex tube can be used for local cooling and heating device. A compressed gas supplied through tangential nozzles makes high swirl velocity field in vortex tube. A compressible and turbulent vortex flow makes temperature separation. Energy transfer process that vortex flow experiences is related to temperature separation. In order to improve temperature separation efficiency, it's important to clarify the principle of energy transfer in vortex tube. In the present study, we focus on heat transfer in vortex flow, then, CFD analysis with large eddy simulation (LES) technique was employed to investigate temperature field and influence of turbulent thermal diffusion in vortex tube.