Eulerian–Eulerian RSTM-PDF Modeling of Turbulent Particulate Flow

Aleaxander Kartushinsky (), Efstathios E. Michaelides, Medhat Hussainov, Igor Shcheglov and Ildar Akhmadullin
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Aleaxander Kartushinsky: Department of Mechanics, Faculty of Civil Engineering, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia
Efstathios E. Michaelides: Department of Engineering, Texas Christian University, 2800 S University Dr, Fort Worth, TX 76129, USA
Medhat Hussainov: Research Laboratory of Multiphase Media Physics, Faculty of Science, Tallinn University of Technology, Akadeemia Tee 15A, 12618 Tallinn, Estonia
Igor Shcheglov: Research Laboratory of Multiphase Media Physics, Faculty of Science, Tallinn University of Technology, Akadeemia Tee 15A, 12618 Tallinn, Estonia
Ildar Akhmadullin: Department of Mechanical Engineering Technology, Purdue University Northwest, 2200 169th St., Hammond, IN 46323, USA

Mathematics, 2023, vol. 11, issue 12, 1-15

Abstract: A novel 3D computational model was developed for the turbulent particulate two-phase flow simulation in the rectangular channel. The model is based on the Eulerian approach applied to 3D Reynolds-averaged Navier–Stokes modeling and statistical Probability Distribution Function method. The uniqueness of the method lies in the direct calculation of normal and transverse components of the Reynolds stresses for both gas and particles. Two cases were examined: a conventional channel flow and grid-generated turbulence flow. The obtained numerical results have been verified and validated by the experimental data, received from the turbulent particle dispersion test. The computed values of the particles’ turbulent dispersion and the maximum value of the particulate concentration distribution show good agreement with the experimental results. The examples are ranged from coal and other bulk material pneumatic transport, vertical fluidized beds, coal gasifiers, and chemical reactors.

Keywords: turbulent channel flows; solid particles; closure equations; PDF of particulate phase velocity; shear flow (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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