TY - JOUR
T1 - Simulation of vortex tube performance and three-dimensional flow with strong swirl in vortex tube
AU - He, Lijuan
AU - Wu, Xinwei
AU - Wang, Di
AU - Tian, Baoyun
AU - Wang, Zheng
AU - Wang, Meng
PY - 2020
Y1 - 2020
N2 - The energy separation and the increase of heating effect and the decrease of cooling effect in the vortex tube with various gases, such as R41, R32, R23, R290, R134a, R1234yf, was studied in the numerically simulated. The pressure field and temperature field and velocity field of the vortex tube were analyzed with R41. The results show that the R41 in the vortex tube, the cold and hot performance will best, the maximum temperature difference what be between cool area and hot area is 5.2 K. The numerical results show that flow motion inside the vortex tube presents extraordinary complicated behavior; The flow inside the vortex tube exist an outer region of quasi-free vortex flow and an inner region of quasi-forced vortex flow; there are the parallel flow, reverse flow and secondary flow in the vortex tube, The interface between parallel flow and reverse flow is that the energy separation place in the vortex tube.
AB - The energy separation and the increase of heating effect and the decrease of cooling effect in the vortex tube with various gases, such as R41, R32, R23, R290, R134a, R1234yf, was studied in the numerically simulated. The pressure field and temperature field and velocity field of the vortex tube were analyzed with R41. The results show that the R41 in the vortex tube, the cold and hot performance will best, the maximum temperature difference what be between cool area and hot area is 5.2 K. The numerical results show that flow motion inside the vortex tube presents extraordinary complicated behavior; The flow inside the vortex tube exist an outer region of quasi-free vortex flow and an inner region of quasi-forced vortex flow; there are the parallel flow, reverse flow and secondary flow in the vortex tube, The interface between parallel flow and reverse flow is that the energy separation place in the vortex tube.
KW - Numerical simulation
KW - Strong swirl flow
KW - Temperature field
KW - There-dimensional flow field
KW - Vortex tube
UR - http://www.scopus.com/inward/record.url?scp=85097193740&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85097193740
VL - 41
SP - 143
EP - 148
JO - Taiyangneng Xuebao/Acta Energiae Solaris Sinica
JF - Taiyangneng Xuebao/Acta Energiae Solaris Sinica
SN - 0254-0096
IS - 11
ER -