Rarefied Gas Flows in Spiral Channels of a Disk-Type Drag Pump
원판형 드래그펌프내의 희박기체유동
- Published : 2000.12.01
Abstract
The direct simulation Monte Carlo (DSMC) method is applied to investigate the flow field of a disk-type drag pump. The pumping channels are cut on both sides of a rotating disk. The rotor has 10 Archimedes' spiral blades. In the present DSMC method, the variable hard sphere model is used as a molecular model, and the no time counter method is employed as a collision sampling technique. For simulation of diatomic gas flows, the Larsen-Borgnakke phenomenological model is adopted to redistribute the translational and internal energies.
Keywords
- Disk-Type Drag Pump;
- Direct Simulation Monte Carlo Method;
- Variable Hard Sphere Model;
- No Time Counter Method
- 원판형 드래그 펌프;
- 직접모사법;
- 가변강구 모델;
- 비시계수법;