2019 Fiscal Year Research-status Report
3-D shape measurement of liquid film and gas bubble of slug flow in microchannels with axial plane optical microscopy
| Project/Area Number |
18K13680
|
|---|
| Research Institution | Ibaraki University |
|---|
Principal Investigator |
李 艶栄 茨城大学, 理工学研究科(工学野), 講師 (20712821)
|
|---|
| Project Period (FY) |
2018-04-01 – 2021-03-31
|
| Keywords | APOM / Liquid film thickness / Slug flow / Two phase flow |
|---|
| Outline of Annual Research Achievements |
Confirmed the principle of APOM system and its applicability to liquid film thickness measurement, constructed experimental setup.
Measured the liquid film thickness around gas phase at low Ca in circular micro tubes: The effects of other different parameters on liquid film thickness, including flow direction, Reynolds number, initial force, and bubble length, is studied to clarify the characteristics of two-phase flow in circular micro tubes.
Measured the liquid film thickness at a wide range of Ca in triangular microchannels: The effects of other different parameters on liquid film thickness, including gravity effects, channel orientation and geometry, and bubble length, is studied to clarify the characteristics of two-phase flow in triangular microchannels.
|
| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Research plan during the year of 2019 is achieved successfully.
Principle of APOM system and its applicability to liquid film thickness measurement is confirmed, and experimental setup is constructed.
Liquid film thickness around gas phase at low Ca in circular micro tubes and that at a wide range of Ca in triangular microchannels is measured.
|
| Strategy for Future Research Activity |
Confirm the principle of APOM system and its applicability to liquid film thickness measurement, improve experimental setup.
Measurement of the liquid film thickness at a wide range of Ca in square and rectangular microchannels with aspect ratios other than 2:
The effects of other different parameters on liquid film thickness, including flow direction, channel geometry, shape and orientation, and bubble length, will also be studied to clarify the characteristics of two-phase flow in square and rectangular microchannels with aspect ratios other than 2.
|
Research Products
(2 results)
