유체기계공업학회:학술대회논문집
- 유체기계공업학회 2000년도 유체기계 연구개발 발표회 논문집
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- Pages.82-87
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- 2000
원판형 드래그펌프내의 희박기체유동
Rarefied Gas Flows in Spiral Channels of a Disk-Type Drag Pump
초록
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.
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