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Study of interactions between liquid vortices and bubbles by simultaneous particle image velocimetry and laser-induced fluorescence tracking

Autor: Rade Ž. Milenković, Beat Sigg, George Yadigaroglu

Publikováno v: Optics & Laser Technology. 42:156-171

Extensive experimental research has been conducted using the particle image velocimetry (PIV), laser-induced fluorescence (LIF) imaging and backlit photographic recordings to study the complex interactions between coherent vortex structures created i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7eabd63f0b59d4487222612e368be4bb
https://doi.org/10.1016/j.optlastec.2009.05.013

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Bubble clustering and trapping in large vortices. Part 2: Time-dependent trapping conditions

Autor: Rade Ž. Milenković, George Yadigaroglu, Beat Sigg

Publikováno v: International Journal of Multiphase Flow. 33:1111-1125

In turbulent, periodically excited jets, interactions between bubbles and large coherent vortices are quantitatively studied. Simultaneous, two-phase PIV (particle image velocimetry) and photographic recordings were applied for tracking the large vor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ad4a6cbf821c87dd047ce45481608d4
https://doi.org/10.1016/j.ijmultiphaseflow.2007.05.005

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Bubble clustering and trapping in large vortices. Part 1: Triggered bubbly jets investigated by phase-averaging

Autor: George Yadigaroglu, Beat Sigg, Rade Ž. Milenković

Publikováno v: International Journal of Multiphase Flow. 33:1088-1110

The characteristics of large coherent structures in turbulent, periodically-excited, as well as naturally-developing bubbly jets are investigated, and interactions between bubbles and large-scale vortices are studied quantitatively. As information on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1583db3fb0bcc43c58847bd603b561e1
https://doi.org/10.1016/j.ijmultiphaseflow.2007.05.003

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Study of periodically excited bubbly jets by PIV and double optical sensors

Autor: Beat Sigg, George Yadigaroglu, Rade Ž. Milenković

Publikováno v: International Journal of Heat and Fluid Flow. 26:922-930

Interactions between large coherent structures and bubbles in two-phase flow can be systematically observed in a periodically excited bubbly jet. Controlled excitation at fixed frequency causes large eddy structures to develop at regular intervals. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5f8db352095e1583d631da8f89d8d6e
https://doi.org/10.1016/j.ijheatfluidflow.2005.10.010

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Staging of head and neck tumors: [18F]fluorodeoxyglucose positron emission tomography compared with physical examination and conventional imaging modalities

Autor: Hans C. Steinert, Sandro J. Stoeckli, Gerold Eyrich, Martin Beat Sigg, Klaus W. Grätz, Pia Hugenin

Publikováno v: Journal of Oral and Maxillofacial Surgery. 61:1022-1029

Purpose: The aims of this study were to evaluate the use of [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) in the staging of primary and recurrent tumors of the head and neck in comparison to routine clinical methods (physical examina

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::354385a03bc2f1c6ec15c462da44d5ae
https://doi.org/10.1016/s0278-2391(03)00314-8

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Local velocity measurements in a thermally-stratified sodium mixing layer using a permanent-magnet probe

Autor: Beat Sigg, Ralf Kapulla, Sandor Horanyi, Marjan Hudina

Publikováno v: Experimental Thermal and Fluid Science. 20:115-136

Mean and fluctuating velocities have been measured in a sodium mixing layer experiment, i.e. in a fluid with very low Prandtl number ( Pr ⩽10 −2 ), with a miniature permanent-magnet velocity probe in the presence of strong temperature gradients.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31698536000a13b244327f4ddaf61025
https://doi.org/10.1016/s0894-1777(99)00036-9

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