Taylor bubble shape data

Stephan Boden^a, Mohammad Haghnegahdar^a, Uwe Hampel^a,b

^aInstitute of Fluid Dynamics, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany

^bAREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering, Technische Universität Dresden, 01062 Dresden, Germany

A gas Taylor bubble (air) was moving upwards co-currently with the flow of liquid (aqueous solution of 76.9% glycerol) in a vertically aligned circular glas channel with hydraulic diameter of D_h = 1.98 mm. Synchrotron X-ray high-speed high-resolution radiography was used to measure the two-dimensional (2D) projected interface of the rising Taylor bubble. A detailed description of the experiment as well as the physical parameters are given by Aland et al. (2013).

[.tif] Instantaneous radiographic image of the rising gas Taylor bubble. [.txt] Image horizontal axis pixel coordinates. [.txt] Image vertical axis pixel coordinates. [.txt] Measured Taylor bubble 2D projected interface.

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Gas Taylor bubbles (air) were moving upwards at varying speeds co-currently with the flow of liquid (aqueous solution of 76.9% glycerol) in a vertically aligned circular glas channel with hydraulic diameter of D_h = 1.98 mm. Synchrotron X-ray high-speed high-resolution radiography was used to measure the two-dimensional (2D) projected interface of the rising Taylor bubbles. A detailed description of the experiment as well as the physical parameters are given by Boden et al. (2017) and Aland et al. (2013).

Only the Taylor bubble front tip shapes are given.

[.txt] Measured Taylor bubble 2D projected interface (Ca = 0.011). [.txt] Measured Taylor bubble 2D projected interface (Ca = 0.049). [.txt] Measured Taylor bubble 2D projected interface (Ca = 0.165).

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A gas Taylor bubble (air) was moving upwards co-currently with the flow of liquid (aqueous solution of 76.9% glycerol) in a vertically aligned square glas channel with hydraulic diameter of D_h = 1.98 mm. Synchrotron X-ray high-speed high-resolution radiography was used to measure the two-dimensional (2D) projected lateral interface of the rising Taylor bubble. A limited angle computed tomography approach was used to measure the averaged three-dimensional (3D) interface of an ensemble of rising gas Taylor bubbles at the same experimental conditions. A detailed description of the experiment as well as the physical parameters are given by Marschall et al. (2014) and Boden et al. (2014).

		[.tif] Instantaneous radiographic image of a single rising gas Taylor bubble (lateral projection). [.txt] Image horizontal axis pixel coordinates. [.txt] Image vertical axis pixel coordinates. [.txt] Measured Taylor bubble 2D projected lateral interface.
		[.txt] Measured Taylor bubble front tip 2D projected diagonal interface. [.txt] Measured Taylor bubble rear tip 2D projected diagonal interface.
		[.txt] Measured Taylor bubble front tip 3D interface.
		[.txt] Measured Taylor bubble rear tip 3D interface.

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Gas Taylor bubbles (air) were moving upwards at varying speeds co-currently with the flow of liquid (aqueous solution of 76.9% glycerol) in a vertically aligned square glas channel with hydraulic diameter of D_h = 1.98 mm. Synchrotron X-ray high-speed high-resolution radiography was used to measure the two-dimensional (2D) projected lateral interface of the rising Taylor bubble. A detailed description of the experiment as well as the physical parameters are given by Boden et al. (2017) and Marschall et al. (2014).

Only the Taylor bubble front tip shapes are given.

[.txt] Measured Taylor bubble 2D projected lateral interface (Ca = 0.010). [.txt] Measured Taylor bubble 2D projected lateral interface (Ca = 0.045). [.txt] Measured Taylor bubble 2D projected lateral interface (Ca = 0.133).

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Single gas Taylor bubbles (air) of different size at fixed vertical position in counter-current flow of liquid (clean water) in a vertically aligned circular glas channel with hydraulic diameter of D_h = 6 mm. Microfocus X-ray radiography was used to measure the two-dimensional (2D) projected interface of the Taylor bubbles. A detailed description of the experiment as well as the physical parameters are given by Boden et al. (2017) and Haghnegahdar et al. (2016a).

[.txt] Measured Taylor bubble 2D projected interface (Vb =   63 mm³). [.txt] Measured Taylor bubble 2D projected interface (Vb = 162 mm³). [.txt] Measured Taylor bubble 2D projected interface (Vb = 223 mm³). [.txt] Measured Taylor bubble 2D projected interface (Vb = 326 mm³).

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Single gas Taylor bubbles (air) of different size at fixed vertical position in counter-current flow of liquid (water, clean and contaminated) in a vertically aligned circular glas channel with hydraulic diameter of D_h = 6 mm. Microfocus X-ray radiography was used to measure the two-dimensional (2D) projected interface of the Taylor bubbles. A detailed description of the experiment as well as the physical parameters are given by Haghnegahdar et al. (2016c).

The size of the bubbles in clean water and in contaminated water are not identical, however comparable.

For each dataset are available:

• Averaged radiographic image of the gas taylor bubble (Radiography)
• Image horizontal axis pixel coordinates (X-Axis)
• Image vertical axis pixel coordinates (Z-Axis)
• Measured Taylor bubble 2D projected interface (Interface)

The liquid was contaminated with surfactant Triton X-100 at a concentration of 13.0 ppm.

	Clean water [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated Triton X-100 [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis Interface
	Clean water [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated Triton X-100 [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface
	Clean water [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated Triton X-100 [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface
	Clean water [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated Triton X-100 [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface

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Single gas Taylor bubbles (air) of different size at fixed vertical position in counter-currently flow of liquid (water, clean and contaminated) in a vertically aligned circular glas channel with hydraulic diameter of D_h = 6 mm. Microfocus X-ray radiography was used to measure the two-dimensional (2D) projected interface of the Taylor bubbles. A detailed description of the experiment as well as the physical parameters are given by Haghnegahdar et al. (2016c).

The size of the bubbles are not identical, however comparable.

For each dataset are available:

• Averaged radiographic image of the gas taylor bubble (Radiography)
• Image horizontal axis pixel coordinates (X-Axis)
• Image vertical axis pixel coordinates (Z-Axis)
• Measured Taylor bubble 2D projected interface (Interface)

Clean water [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated (0.26 ppm Triton X-100) [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated (1.30 ppm Triton X-100) [.tif] Radiography [.txt] X-Axis [.txt] Z-Axis [.txt] Interface Contaminated (13.0 ppm Triton X-100) [.tif] Radiography [.txt] X-Axis [.txt]Z-Axis [.txt] Interface

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Single gas Taylor bubbles (air) of different size at fixed vertical position in counter-currently flow of liquid (clean water) in a vertically aligned square glas channel with hydraulic diameter of D_h = 6 mm. Microfocus X-ray tomography was used to measure the three-dimensional (3D) interface of the Taylor bubbles. A detailed description of the experiment as well as the physical parameters are given by Boden et al. (2016) and Haghnegahdar et al. (2016b).

[.txt] Measured Taylor bubble 3D projected interface (Vb = 119 mm³). [.txt] Measured Taylor bubble 3D projected interface (Vb = 191 mm³). [.txt] Measured Taylor bubble 3D projected interface (Vb = 281 mm³). [.txt] Measured Taylor bubble 3D projected interface (Vb = 477 mm³). [.txt] Measured Taylor bubble 3D projected interface (Vb = 670 mm³).

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• All interfaces are given as point clouds.
• All given coordinates are normalized with respect to the hydraulic diameter D_h.
• The plane spanned by the x- and y-axis (horizontal plane) is aligned orthogonally to the vector of gravity,
  the positive vertical z-axis is aligned in parallel to the vector of gravity.

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Aland, S., Boden, S., Hahn, A., Klingbeil, F., Weismann, M., Weller, S.:
Quantitative comparison of Taylor flow simulations based on sharp-interface and diffuse-interface models.
International Journal for Numerical Methods in Fluids 73 (2013), 344-361.
doi:10.1002/fld.3802

Boden, S., dos Santos Rolo, T., Baumbach, T., Hampel, U.:
Synchrotron radiation microtomography of Taylor bubbles in capillary two-phase flow.
Experiments in Fluids 55 (2014), 1768.
doi:10.1007/s00348-014-1768-7

Boden, S., Haghnegahdar, M., Hampel, U.:
Measurement of Taylor bubble shape in square channel by microfocus X-ray computed tomography for investigation of mass transfer.
Flow Measurement and Instrumentation (2016, accepted manuscript).
doi:10.1016/j.flowmeasinst.2016.06.004

Boden, S., Haghnegahdar, M., Hampel, U.:
X-ray microtomography of Taylor bubbles with mass transfer and surfactants in capillary two-phase flow.
In: Bothe, D., Reusken, A. (eds.): Transport processes at fluidic interfaces (Series: Advances in Mathematical Fluid Mechanics), Springer, Cham (2017, manuscript submitted).

Haghnegahdar, M., Boden, S., Hampel, U.:
Investigation of mass transfer in milli-channels using high-resolution microfocus X-ray imaging.
International Journal of Heat and Mass Transfer 93 (2016a), 653-664.
doi:10.1016/j.ijheatmasstransfer.2015.10.033

Haghnegahdar, M., Boden, S., Hampel, U.:
Mass transfer measurement in a square milli-channel and comparison with results from a circular channel.
International Journal of Heat and Mass Transfer 101 (2016b), 251-260.
doi:10.1016/j.ijheatmasstransfer.2016.05.014

Haghnegahdar, M., Boden, S., Hampel, U.:
Investigation of surfactant effect on the bubble shape and mass transfer in a milli-channel using high-resolution microfocus X-ray imaing.
International Journal of Multiphase Flow (2016c), 184-196.
doi:10.1016/j.ijmultiphaseflow.2016.09.010

Marschall, H., Boden, S., Lehrenfeld, C., Falconi D., C.J., Hampel, U., Reusken, A., Woerner, M., Bothe, D.:
Validation of interface capturing and tracking techniques with different surface tension treatments against a Taylor bubble benchmark problem.
Computers & Fluids 102 (2014), 336-352.
doi:10.1016/j.compfluid.2014.06.030

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Last update: 09.11.2016, Stephan Boden