Chemical reactors, air lubrication systems, and the aeration of the oceans rely, either in part or in whole, on the interaction of bubbles and their surrounding liquid. Even though bubbly mixtures have been studied at both the macroscopic and bubble level, the dissipation field associated with an individual bubble in a shear flow has not been thoroughly investigated. Exploring the nature of this phenomenon is critical not only when examining the effect a bubble has on the dissipation in a bulk shear flow but also when a microbubble interacts with turbulent eddies near the Kolmogorov length scale. In order to further our understanding of this behavior, this study investigated these interactions both analytically and experimentally. From an analytical perspective, expressions were developed to model the dissipation associated with the creeping flow fields in and around a fluid particle immersed in a linear shear flow. Experimentally, tests were conducted using a simple test setup that corroborated the general findings of the theoretical investigation. Both the analytical and experimental results indicate that the presence of bubbles in a shear flow causes elevated dissipation of kinetic energy.
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June 2017
Research-Article
Dissipative Effects of Bubbles and Particles in Shear Flows
Campbell Dinsmore,
Campbell Dinsmore
Department of Mechanical Engineering,
California State Polytechnic,
University at Pomona,
Pomona, CA 91768;
California State Polytechnic,
University at Pomona,
Pomona, CA 91768;
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: cadinsmore@cpp.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: cadinsmore@cpp.edu
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AmirHessam Aminfar,
AmirHessam Aminfar
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: aamin006@ucr.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: aamin006@ucr.edu
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Marko Princevac
Marko Princevac
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: marko@engr.ucr.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: marko@engr.ucr.edu
Search for other works by this author on:
Campbell Dinsmore
Department of Mechanical Engineering,
California State Polytechnic,
University at Pomona,
Pomona, CA 91768;
California State Polytechnic,
University at Pomona,
Pomona, CA 91768;
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: cadinsmore@cpp.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: cadinsmore@cpp.edu
AmirHessam Aminfar
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: aamin006@ucr.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: aamin006@ucr.edu
Marko Princevac
Department of Mechanical Engineering,
University of California at Riverside,
Riverside, CA 92521
e-mail: marko@engr.ucr.edu
University of California at Riverside,
Riverside, CA 92521
e-mail: marko@engr.ucr.edu
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received February 18, 2016; final manuscript received January 27, 2017; published online April 5, 2017. Assoc. Editor: Zhongquan Charlie Zheng.
J. Fluids Eng. Jun 2017, 139(6): 061302 (12 pages)
Published Online: April 5, 2017
Article history
Received:
February 18, 2016
Revised:
January 27, 2017
Citation
Dinsmore, C., Aminfar, A., and Princevac, M. (April 5, 2017). "Dissipative Effects of Bubbles and Particles in Shear Flows." ASME. J. Fluids Eng. June 2017; 139(6): 061302. https://doi.org/10.1115/1.4035946
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