Impact of waves on the circulation flow in the Iguasu gas centrifuge

[摘要] 2D axisymmetric transient flow induced by a pulsed braking force in the Iguasu gas centrifuge (GC) is simulated numerically. The simulation is performed for two cases: transient and stationary. The braking forces averaged over the period of rotation are equal to each other in both cases. The transient case is compared with the stationary case where the flow is excited by the stationary braking force.Two models of the gas cenrifuge is simulated. There are two cameras in the first model and three cameras in the second one. In the transient case for the two cameras model pulsations almost doubles the axial circulation flux in the working camera. In the transient case for the three cameras model the gas flux through the gap in the bottom baffle exceeds on 15 % the same flux in the stationary case for the same gas content and temperature at the walls of the rotor. We argue that the waves can reduce the gas content in the GC on the same 15 %.

[发布机构] National Research Nuclear University, MEPhl (Moscow Engineering Physics Institute), Russia^1

[效力级别] 数学

[关键词] Axisymmetric;Braking force;Circulation flow;Gas centrifuges;Gas content;Gas flux;Transient flow