Computational Study of Gas-Solid Flow in a Horizontal Stepped Pipeline

Table 1

Simulation parameters used in this work.

Numerical model	Parameters	Symbol	Units	Value
CFD-DEM	Solid mass flow rate		kg/s	0.89
	Solid density		kg/m^3	800
	Solid particle radius		mm	3
	Time step for solids		s	1 × 10^−6
	Solid velocities		m/s	6.4–24
	Gas density		kg/m^3	2.45
	Gas velocities		m/s	8–30
	Time step for gas		s	6 × 10^−3
TFM	Solid particle diameter		mm	0.8
	Solid density		kg/m^3	1400
	Solid velocities		m/s	3.2–20
	Inlet gas velocities		m/s	4–25
	Gas density		kg/m^3	2.45
	Time step		s	1 × 10^−4