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Abstract: Further research on the mechanism in membrane
micro-filtration, RNG k-e turbulent model is adopted to a numerically
simulating the three dimensional turbulent rotary cross-flow flow field
of a tubular micro-filtration membrane separator. The simulated results
for the distribution laws of the flow field and pressure in the tubular
micro-filtration membrane separator annular gap are obtained. The
results are compared with the experimental data measured by PIV system
of laser particle image. And also they are compared with the
experimental data measured by a self-developing on-line pressure
measuring system for the annular gap of a tubular membrane separator
with the aid of computer. This system has high precision by using
advanced software developing tools, such as Delphi and Access 2000. The
pressure distribution laws in the annular gap of the tubular membrane
separator with rotary cross-flow are measured by it. The model
prediction pressure distributions agree with experimental measurements.
Key words: Membrane micro-filtration Numerical simulation k-e
turbulent model Rotary cross-flow
CLC No: TQ028.8
国家自然科学基金资助项目(29976025).
Received 20021029, received in revised form 20030110
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