Equivalent one-dimensional coefficient for hydrodynamic dispersion in a circular tube
Technical Report
·
OSTI ID:5146294
The problem of hydrodynamic dispersion in a circular tube is solved numerically. From the solution breakthrough curves of various distances from the inflow end and for different flow velocities are obtained. From these breakthrough curves the equivalent one-dimensional dispersion coefficient (Deq) is computed in the same way this is done in experimental work. Deq is a function of the longitudinal Peclet number (Pe/sub L/) and for large Pe/sub L/ Deq is proportional to Pe/sub L/. This is unlike the well-known Taylor solution, and it agrees much better with experimental results. The differences between this solution and Taylor's is also discussed. 12 refs., 8 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5146294
- Report Number(s):
- LA-10822-MS; ON: DE87000793
- Country of Publication:
- United States
- Language:
- English
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