August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Aarthi Sekaran

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Chadalavada Venkateswara Babu

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Srinivasa Rao Billa

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Ernesto Primera

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Ankit Tiwari

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Gen Fu

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Ankit Tiwari

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ravinder Yerram, Kevin Anderson, Rakesh Ranjan

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ivaylo Nedyalkov, Soroor Karimi, Philipp Epple, Zhongquan Zheng

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ivaylo Nedyalkov, Philipp Epple, Zhongquan Zheng, Soroor Karimi

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ivaylo Nedyalkov, Soroor Karimi, Zhongquan Zheng, Philipp Epple

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ivaylo Nedyalkov, Soroor Karimi, Philipp Epple, Zhongquan Zheng

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ivana Milanovic, Ray Taghavi, Kalyan Goparaju

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Javid Bayandor, Jun Chen, Deify Law

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Javid Bayandor, Jun Chen, Deify Law

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Lyes Khezzar, Jun Chen, Deify Law, Navid Goudarzi, Suraj Jain Megharaja, Kamran Siddiqui

This topic concerns all aspects of current research that aid in increasing the understanding and control of turbulent flows as they happen across different application domains. Papers can include experimental, numerical or theoretical works where turbulence is the dominant mode of transfer of momentum, heat and mass. Topics can cover, stability of turbulent flows, numerical modelling of internal and external flows based on RANS, LES or DNS, flows under the influence of body forces such as electromagnetic fields or rotation, drag reduction, jet flows, confined flows, unsteady flows with or without heat and mass transfer.

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Hassan Peerhossaini, Jun Chen, Deify Law

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Hassan Peerhossaini, Jun Chen, Deify Law

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Philipp Epple, Jun Chen, Deify Law, Zhongquan Zheng, Khaled Hammad

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: S.A. Sherif, Jun Chen, Deify Law, Philipp Epple, Zhongquan Zheng

The Symposium on Vortex Dynamics is intended to provide a broad coverage of current experimental, analytical, and numerical studies related to all aspects of vortex flows. Appropriate topics include but are not limited to the following: vortex flow physics, vortex instabilities, cyclones, vortex creation and annihilation, phase change in vortex flows, vortex flow turbulence, Lee vortices, vortex shedding, shallow-water vortices, vertical vorticity and vortices, spiral vortex flows, ring vortices, and experimental, analytical, and numerical methods in all aspects of vortex flows.

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Michael Kinzel, Robert Kunz, Bertrand Rollin, William Straka

4-01 In the Numerical Methods for Multiphase Flows topic, sponsored by the Multiphase Flow Technical Committee, we aim to share ideas regarding the development of numerical methods relevant to multiphase fluid flows. This topic is open to papers and presentations on numerical methods involving Eulerian/Eulerian (multifluid or homogeneous) or Eulerian/Lagrangian numerical methods. Some examples of Eulerian/Eulerian may include: interface tracking methods such as Volume of Fluid (VOF) and level set approaches, drag formulations and closure models. For Eulerian/Lagrangian topics, some examples may include: Particle in Cell (PIC), particle tracers and Lagrangian interface methods. The topic is open to analytical verification as well as applications spanning incompressible and compressible flows involving: sprays, bubbly flows, atomization, fluidized beds, particle laden flows, Rayleigh-Taylor, Richtmyer-Meshkov and Kelvin-Helmholtz instabilities, among others.
4-03 For the Cavitation Topic area, sponsored by the Multiphase Flow Technical Committee, authors and presenters are invited to participate in this event to promote the discussion, understanding and information exchange on topics relating to cavitation. Authors are encouraged to present results and ideas that are complete for formal presentations or archival publication, as well as works in progress. Papers are solicited on topics related to cavitation research. Papers addressing the following are especially welcome: cavitation in rotating machines, propellers, valves or injectors, cavitation on foils and bodies, nucleation, inception, and cavitation related erosion. Subjects can include theoretical, computational, and experimental research. This includes related instrumentation, as well as practical-experience aspects on the above topics.

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Timothy O'Hern, Robert Kunz, Bertrand Rollin, Stanley Ling, Zhongquan Zheng, Philipp Epple

4-04 The objective of the topic Gas-Liquid Flows, sponsored by the Multiphase Flow Technical Committee, is to provide a venue for the presentation of current experimental, theoretical and computational work in gas-liquid multiphase flows relevant to many systems of engineering interest. Measurements and predictions in such complex systems are particularly challenging and have attracted a great deal of attention over the years. The symposium will provide the opportunity for the presentation of results obtained from the use of novel measuring techniques, recent theoretical developments and models, as well as the latest computational algorithms.
Specific areas of interest include, but are not limited to:
• Hydrodynamic Modeling of gas-liquid flows
• Transport phenomena at phase interfaces
• Gas-liquid flow instabilities and control
• Instrumentation and measuring techniques
• Flow patterns and transitions
• Dynamics of bubbles, droplets and sprays
• Scaling of gas-liquid flow systems
• Phenomena in multi-component two-phase flows
• Turbulence in gas-liquid flows
• Industrial applications of gas-liquid flows
• Gas-liquid flows in micro-gravity environments
• Gas-liquid flows in micro-fluidic geometries and systems
• Numerical simulations of gas-liquid flows

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Timothy O'Hern, Philipp Epple, Zhongquan Zheng, Stanley Ling, Robert Kunz, Bertrand Rollin

4-04 The objective of the topic Gas-Liquid Flows, sponsored by the Multiphase Flow Technical Committee, is to provide a venue for the presentation of current experimental, theoretical and computational work in gas-liquid multiphase flows relevant to many systems of engineering interest. Measurements and predictions in such complex systems are particularly challenging and have attracted a great deal of attention over the years. The symposium will provide the opportunity for the presentation of results obtained from the use of novel measuring techniques, recent theoretical developments and models, as well as the latest computational algorithms.
Specific areas of interest include, but are not limited to:
• Hydrodynamic Modeling of gas-liquid flows
• Transport phenomena at phase interfaces
• Gas-liquid flow instabilities and control
• Instrumentation and measuring techniques
• Flow patterns and transitions
• Dynamics of bubbles, droplets and sprays
• Scaling of gas-liquid flow systems
• Phenomena in multi-component two-phase flows
• Turbulence in gas-liquid flows
• Industrial applications of gas-liquid flows
• Gas-liquid flows in micro-gravity environments
• Gas-liquid flows in micro-fluidic geometries and systems
• Numerical simulations of gas-liquid flows

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Robert Kunz, Bertrand Rollin, Mark R Duignan

The topic Liquid-Solid Flows, sponsored by the Multiphase Flow Technical Committee, deals with liquid-solid flow research, including theory, experimental results, computational methods, erosion wear and fluid machinery. Typical applications include mechanical, chemical and mining processing industries, slurry transportation, paper industry, nuclear reactors, etc. Research can include, but is not limited to, particle dynamics and phase interactions, two-phase flow direct numerical simulation and modeling, flow visualization, measurements with good spatial and temporal resolution, particle-wall interaction and surface phenomena, and two-phase flow in fluid machinery.

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Goodarz Ahmadi, Robert Kunz, Bertrand Rollin, Zhongquan Zheng, Philipp Epple

The international Symposium on Gas-Solid Flows is sponsored by the Multi-Phase Flow Committee. Gas-particle flow problems occur in a wide range of environmental, industrial and biomedical applications including pneumatic transport, coal combustion, particle classifiers and separators, fluidization, air pollution control, fluidized bed reactors, targeted drug delivery and medical applications. New information concerning gas-particle flows is continually being obtained by the use of analytical models, numerical simulations, and experimental studies. The purpose of this symposium is to provide a forum for researchers and engineers currently working on problems related to gas-particle flows to discuss recent advances and new engineering applications relevant to this area.

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Thomas Shepard, Robert Kunz, Bertrand Rollin, Zhongquan Zheng, Philipp Epple

The Bubble, Droplet, and Aerosol Dynamics Topic is sponsored by the Multiphase Flow Technical Committee. Authors and presenters are invited to participate in this event to expand understanding and promotion of efforts and disciplines in the areas of bubble, droplet, and aerosol dynamics. While the dynamics of impacts, evaporation and internal flows are commonly presented within this topic, many other phenomena are also welcomed. Dissemination of knowledge by presenting research results, new developments, and novel concepts in bubble, droplet, and aerosol dynamics from experiments, simulations and theoretical analyses are all encouraged. A variety of sessions will be formed within these topics as warranted by submission topics. All sessions are quality driven.

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Timothy O'Hern, Philipp Epple, Zhongquan Zheng, Stanley Ling, Robert Kunz, Bertrand Rollin

4-08 FEDSM2021 would like to solicit research papers and presentations in the topic area of “Interfacial Phenomena and Flows,” sponsored by the Multiphase Flow Committee. Interfacial phenomena have been widely studied in different scales, but it is still a very challenging problem, due to the large fluid properties’ gradient at the interface. The proposed forum will provide a platform for engineers and scientists to meet and present recent advances in interfacial phenomena and flows. The papers can be experimental, numerical and/or analytical studies. The topics of interest cover a wide range of fluid flows that are dominated by interfacial dynamics at different scales, including but not limited to: free-surface flows, phase transitions, mass and energy transfer on the interface, Marangoni flows, thermocapillary flows, surfactants, solutocapillary flows, surface viscosity, interfacial waves (Faraday waves and so on), contact line dynamics, and contact angle hysteresis, etc.

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Mark R Duignan, Robert Kunz, Bertrand Rollin, Marianne Francois, Zhongquan Zheng, Philipp Epple

4-09 The Erosion, Slurry, and Sedimentation Topic, sponsored by the Multiphase Flow Technical Committee, encompasses studies on erosion and corrosion in solid-liquid, gas-liquid, and three phase flows. Additionally it includes studies on flows of slurry through various geometries and machinery, rheological studies, as well as the deposition of solid particles in slurry, gas-solid, and three phase flows. Includes but is not limited to flows through pumps, tanks, pipes, cyclones, elbows, fluidized beds, and turbines. Both computational and experimental studies fall under the purview of this topic, which includes both dense and dilute flows.
4-15 To apply for the 2021 Graduate Student Scholarship for the Multiphase Flow Technical Committee. Please see the Graduate Student Scholarship Program description for additional details.

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Srinivas Swaroop Kolla, Robert Kunz, Bertrand Rollin, Philipp Epple, Zhongquan Zheng

Multiphase Flow Technical Committee would like solicit research papers and presentations in the topic area of "Multiphase Flows in Petroleum Engineering" in the field of Petroleum & related industries from engineers and researchers in academia, industry, research institutions etc.

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Ning Zhang, Haibo Dong, Sijun Zhang, Shanti Bhushan, Zhongquan Zheng

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ning Zhang, Zhongquan Zheng, Shanti Bhushan, Haibo Dong, Sijun Zhang

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ning Zhang, Zhongquan Zheng, Shanti Bhushan, Haibo Dong, Sijun Zhang

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Ning Zhang, Zhongquan Zheng, Shanti Bhushan, Haibo Dong, Sijun Zhang

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Sijun Zhang, Haibo Dong, Shanti Bhushan, Ning Zhang

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Shanti Bhushan, Haibo Dong, Sijun Zhang, Zhongquan Zheng, Philipp Epple, Ning Zhang

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Chengyu Li, Haibo Dong, Sijun Zhang, Shanti Bhushan, Zhongquan Zheng, Ning Zhang

August 12th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Haibo Dong, Sijun Zhang, Shanti Bhushan, Zhongquan Zheng, Ning Zhang

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Haibo Dong, Sijun Zhang, Shanti Bhushan, Ning Zhang

August 11th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Sijun Zhang, Haibo Dong, Shanti Bhushan, Ning Zhang

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Chengyu Li, Haibo Dong, Sijun Zhang, Shanti Bhushan, Ning Zhang

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Sijun Zhang, Haibo Dong, Shanti Bhushan, Ning Zhang

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Mohammad Hossan, Rasim Guldiken

August 10th, 12:50 PM EDT - 1:50 PM EDT

Technical

Session Chairs: Mohammad Hossan, Rasim Guldiken, Zhongquan Zheng, Philipp Epple

August 11th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Mohammad Hossan, Philipp Epple, Zhongquan Zheng, Rasim Guldiken

August 12th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Mohammad Hossan, Rasim Guldiken

August 10th, 10:50 AM EDT - 11:50 AM EDT

Technical

Session Chairs: Lea Der Chen, David Bridegs

August 10th, 9:45 AM EDT - 10:45 AM EDT

Technical

Session Chairs: Zhongquan Zheng, Philipp Epple

Prof. Howard A. Stone
Lecture Title: Seeking Intersections Between Disciplines: “Boundaries” in Multiphase Flows

Abstract: Fluid mechanics has a rich history. Modern research themes introduce new questions, some of which can be understood using fundamental concepts. This feature is sometimes the case in the flows of complex fluids, which link fundamental research questions to potential applications, both in industry and for understanding natural phenomena. In this talk I will survey research questions that we have studied in recent years that have this character: (1) Although flows at modest Reynolds numbers at a T-shaped junction is a geometry where one should expect everything is known, nevertheless we uncover previously unrecognized complexity in three-dimensional solutions to the Navier-Stokes equations, which rationalize our experimental observations of particle trapping in this common flow configuration. (2) The motion of a particle adjacent to a flexible membrane links fluid and elastic responses, which we show produces interactions capable of separating particles by size. (3) We document experimentally the time and (three-dimensional) space variations of the shape of a falling thin film near an edge, and rationalize the quantitative features using a similarity scaling with a unique feature that takes a three-dimensional problem and converts it to a one-dimensional problem.

August 10th, 12:00 PM EDT - 12:45 PM EDT

Technical

[{"firstName":"Zhongquan","lastName":"Zheng","email":"zzheng@usu.edu","company":"Utah State University"},{"firstName":"Philipp","lastName":"Epple","email":"philipp.epple@hs-coburg.de","company":"Coburg University of Applied Sciences"}]

Dr. Rajat Mittal
Lecture Title: Immersed Boundary Methods-Translating Concepts into Simulations

Abstract: The last 25 years have seen a phenomenal growth in the application of Immersed Boundary Methods (IBMs) to the computational modeling of fluid flows. The power of IBM lies in the fact that it frees the fluid dynamicist from the need to generate body-conformal grids, thereby allowing rapid translation from concepts to simulations. The very early applications of the IBM were in the areas of interfacial and biological fluid dynamics, and while these remain the strongholds for these methods, application have expanded to encompass most areas of fluids dynamics including fluid-structure interaction, multiphase flows, acoustics, fluidic microdevices, heat transfer, design optimization, reacting flows and others. This expanded scope has also been accompanied by significant numerical and computational advancements in these methods. In my talk I will review the history as well as the state-of-the-art of IBMs. The particular emphasis of my talk will be on some areas that have been the focus of my own research in recent years: IBMs with improved accuracy and conservation properties, and application to biological flows, bioacoustics, and fluid-structure interaction.

August 11th, 10:00 AM EDT - 10:45 AM EDT

Technical

[{"firstName":"Zhongquan","lastName":"Zheng","email":"zzheng@usu.edu","company":"Utah State University"},{"firstName":"Philipp","lastName":"Epple","email":"philipp.epple@hs-coburg.de","company":"Coburg University of Applied Sciences"}]

Dr. Steven Ceccio
Lecture Title: The Role of Compressibility on the Dynamics of Developed Cavitation

Abstract: Developed cavitation can occur on liquid flows over lifting surfaces, in the passages of turbomachinery, and in the wakes of bluff bodies. Such cavitation can be very deleterious to system performance, leading to thrust breakdown, vibration, and erosion. Alternatively, pockets of developed cavitation can be actively employed to reduce hydrodynamic resistance. The cyclical shedding of large-scale vapor and gas clouds (cloud cavitation) is an important feature of these flows, and the mechanisms responsible for sheet-to-cloud transition has received considerable study. Re-entrant liquid flow has traditionally been identified and the dominant mechanism for the creation of unstable sheet cavitation, but recent studies have revealed that a second important process is responsible for flow instability. High volume-fraction bubbly mixtures exhibit compressibility and can manifest sound speeds that are very low compared to the freestream speed of the flow. When this occurs, the local Mach number (based on local speed of sound) within the region of bubbly flow can exceed unity, leading to the formation of dynamic condensation waves. We have shown how this process leads to sheet to cloud transition, and how consideration of the local Mach number can explain a variety of previously observed flow cavity flow phenomena that cannot be explained simply with re-entrant flow dynamics. We have visualized these cavitating flows using traditional optical and cinematographic X-ray imaging. In the present talk we will explore the importance of compressibility on cavity dynamics for flows over a variety of canonical bodies and discuss the relationship between the cavitating mixture properties, the resulting sound speed (Mach number), and the formation of bubbly shock waves. We will also show how the injection of non-condensable gas can be used to suppress these flow dynamics by lowering the local mixture Mach number.

August 11th, 12:00 PM EDT - 12:45 PM EDT

Technical

[{"firstName":"Zhongquan","lastName":"Zheng","email":"zzheng@usu.edu","company":"Utah State University"},{"firstName":"Philipp","lastName":"Epple","email":"philipp.epple@hs-coburg.de","company":"Coburg University of Applied Sciences"}]

Robert Visintainer
Lecture Title: Pumping Rocks: Hydrotransport and the Centrifugal Slurry Pump

Abstract: Centrifugal pumps are one of the most common machines in use worldwide, with a long history dating back to the 17th century. Applications are as varied as the pump designs themselves. In the great majority of cases, their primary purpose is the transport of some fluid, such as water, fuel or other mixtures used in the chemical and food processing industries. In some cases, the fluids may be laden with solids, for example river water, sewage, drainage, or wash water. However, a special class of centrifugal pump exists whose primary function is the transport solids, and where the fluids represent little more than a transport medium, an application sometimes referred to as "hydrotransport”". The pumps that power these systems are called slurry pumps.

Slurry pumps are common in the mineral processing and dredging industries, and as one may imagine, the erosive stresses on their pumping components are severe. The solids range from fine silt to boulders and are often handled at high concentration, since they are the primary focus of transport. They substantially alter pump and pipeline hydraulic behavior, which can be further complicated by entrained gasses or viscous fluids.

In this presentation, we will examine some of the technical challenges encountered in hydrotransport and slurry pump applications and give examples of the design strategies and scientific methods developed over the last 50 years to address them.

August 11th, 2:00 PM EDT - 2:45 PM EDT

Technical

[{"firstName":"Zhongquan","lastName":"Zheng","email":"zzheng@usu.edu","company":"Utah State University"},{"firstName":"Philipp","lastName":"Epple","email":"philipp.epple@hs-coburg.de","company":"Coburg University of Applied Sciences"}]

August 12th, 12:00 PM EDT - 12:45 PM EDT

Technical

[{"firstName":"Philipp","lastName":"Epple","email":"philipp.epple@hs-coburg.de","company":"Coburg University of Applied Sciences"},{"firstName":"Zhongquan","lastName":"Zheng","email":"zzheng@usu.edu","company":"Utah State University"}]

August 12th, 2:00 PM EDT - 2:45 PM EDT

Plenary

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