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Workshop attendees will receive 6 hours of CPC/PDH Hours upon completion of the course.
The application of computational fluid dynamics (CFD) in multiphase flow systems, especially multiphase fluidized bed reactors, has gained popularity over the years. CFD is now often used in a wide range of industries, such as oil and gas, energy, pharmaceutical, chemical, food processing, automotive, metallurgy, etc., due to its potential to successfully help the companies to make engineering decisions pertaining to the designing, troubleshooting, debottlenecking, retrofitting, and scale-up aspects of commercial-scale systems. Key examples of the use of commercial as well as open source CFD codes include fluid catalytic cracking (FCC) reactors in the oil industry, gas-phase polyolefin reactors, fluidized bed reactors for polysilicon production, coal and biomass gasification reactors, and many more.
Many CFD codes are available in the market today, and they all require good understanding of the basic principles of multiphase flow and numerical methods. One of the objectives of this workshop is to review basic multiphase flow conservative laws, and to show the participants how to use CFD codes to obtain meaningful information. The workshop will also provide users with the information on several modeling approaches involving physics relevant to certain applications. During this hands-on workshop, attendees will also have a chance to run a sample multiphase model on their laptops (to be brought in by the attendees) using the Illinois Institute of Technology (IIT) multiphase code and evaluate the results.
This workshop is for undergraduate and graduate students, engineers and scientists who want to learn how to use modern computational tools to improve the performance and design of multiphase fluidized bed reactors. The audience is encouraged to participate in this fun-filled and educational workshop that promises to provide a unique platform and opportunity to interact with six multiphase flow CFD practitioners and experts from academia, industry and national laboratory, with a combined experience of over 100 years in this field. The instructors have delivered several successful workshops on multiphase flow CFD in various fora, and the bar is expected to rise even higher at the 8th World Congress on Particle Technology.
In addition to learning key features about CFD codes, such as Barracuda®, ANSYS® Fluent, IIT multiphase code, MFiX, and STAR-CCM+, the workshop will also include a live demonstration of a mini-circulating fluidized bed (CFB) prototype comprising a riser, standpipe, and cyclone, and its comparison with Barracuda®. The cold-flow mini-CFB is capable of fluidizing particles classified as Geldart groups A, B, C and D in various fluidization regimes, such as bubbling, turbulent, transport regimes, etc.
- Reza Mostofi, Chair
- Mayank Kashyap, Co-Chair
|9:00 AM - 10:00 AM||Introduction to fluidization; Plexiglas mini-circulating fluidized bed demonstration unit comprising a riser, standpipe and cyclone that has the ability to fluidize particles in the core-annular and other flow regimes; Introduction to Barracuda®||Mayank Kashyap, Ph.D., Staff Scientist – Process Technology, SABIC|
|10:00 AM - 10:40 AM||Conservation laws and constitutive equations (D. Gidaspow. “Multiphase Flow and Fluidization”. Academic Press, 1994)||Dimitri Gidaspow, Distinguished Professor, Emeritus, Illinois Institute of Technology, Chicago|
|10:40 AM - 11:10 AM||Break|
|11:10 AM - 12:00 PM||Overcoming challenges in a gas-solids CFD model; Simulations using ANSYS Fluent||Reza Mostofi, Ph.D., Lead Engineer, Honeywell|
|12:00 PM - 1:00 PM||Lunch|
|1:00 PM - 1:40 PM||Formation and elimination of bubbles using IIT multiphase CFD code with input viscosities for the Westinghouse 3 meter fluidized bed (D. Gidaspow & V. Jiradilok. “Computational Techniques”. Nova Science Publishers, 2010)||Dimitri Gidaspow, Distinguished Professor, Emeritus, Illinois Institute of Technology, Chicago|
|1:40 PM - 2:30 PM||Multiphase flow science at NETL||Madhava Syamlal, Ph.D., Senior Fellow – Computational Engineering, National Energy Technology Laboratory (NETL), U.S. Department of Energy (DOE)|
|2:30 PM - 2:40 PM||Break|
|2:40 PM - 3:30 PM||Coupling DEM and CFD to optimize particulate flows||Oleh Baran, Ph.D., Product Manager - STAR-CCM+ Lagrangian Multiphase and DEM, Siemens PLM|
|3:30 PM - 3:40 PM||Break|
|3:40 PM - 4:30 PM||Modified MFiX code to simulate hydrodynamics of gas-solids circulating fluidized beds||Huilin Lu, Professor, Harbin Institute of Technology, China|
|4:30 PM - 5:00 PM||Discussion: CFD for designing gas-solids, liquid solids and three phase fluidized bed reactors|