Verification of Clausing's factor

Computational conditions

Verification of Clausing's factor Clausing’s factors are calulated with using RGS3D. Results of DSMC method, MC method and references are compared. Diameter of pipe R is fixed and length L is changed with four cases L=1, 3, 5 and 7.

Result

  • クラウジング係数結果比較グラフ

    クラウジング係数結果比較グラフ

References

  1. A User's Guide to Vacuum Technology, John F. O'Hanlon, 1980, John Wilet & Sons, Inc.
  2. Gas Flow Patterns at Entrance and Exit of Cylindrical Tubes By B.B.DAYTON 　Table 2 Values of a and P