About the Author

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Saad Ragab held the position of Professor in the Department of Biomedical Engineering & Mechanics at Virginia Tech until May 2022. Presently, he is Professor Emeritus in the same department. Dr. Ragab's fields of interest and research include computational fluid dynamics, hydrodynamic stability, optimization, multiphase fluid flow, and fluid-structure interactions. Dr. Ragab received his B.S. and M.S. degrees in aeronautical engineering, Cairo University, Egypt, and earned his Ph.D. in Engineering Mechanics in 1979 from Virginia Tech, Blacksburg, Virginia. He has received several awards for excellence in teaching, and certificates of recognition from the APS and ASME.Hassan E. Fayed is the founder and CEO of Narmer-EngSim; a Research and Development Company based in Virginia. He received his B.S. and M.S. degrees in Mechanical Engineering from Zagazig University in Egypt, and his Ph.D. in Engineering Mechanics in 2013 from Virginia Tech. Dr. Fayed's specialities include multiphase flow physics and numerical simulations, hydrocyclone technology and applications in mining and oil&gas industry.