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MWS_DFD11-2011-000133.pdf

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Summary

Bubble deformability is crucial for strong drag reduction in turbulent Taylor-Couette flow. Researchers studied bubbly Taylor-Couette flow in the turbulent regime at Reynolds numbers of 5.1 × 10^5 − 2.0 × 10^6, measuring drag reduction (DR) based on global torque for global gas volume fractions up to 4%. They observed moderate DR for Re = 5.1 × 10^5 and strong DR for Re = 1.0 × 10^6 and 2.0 × 10^6, with over 40% DR achieved for αglobal = 4% at Re = 2.0 × 10^6. Combining global and local measurements revealed that bubble deformability is crucial for strong drag reduction.

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Bubble deformability is crucial for strong drag reduction in turbulent Taylor-Couette flow.

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File Format: PDF
File Size: 17 KB
Pages: 1
Language: EN
Total Downloads: 71
Last Updated: 2 hours ago

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