4. MFIX-DEM Code Verification Test Cases¶

The test cases presented in this chapter for the MFIX-DEM are summarized in Table 4.1. Test cases have been selected based on the criteria for verification test selection outlined in Section 1. All cases are executed in serial mode unless explicitly noted.

Table 4.1 Summary of MFiX-DEM tests by feature.¶
	01	02	03	04	05	06
Frequency†	C	C	C	C	C	C
Reference Dataset‡	A	A	A	A	P	A
Dimension	1D	1D	1D	1D	2D	1D
Coupled						\({\checkmark}\)
Momentum	\({\checkmark}\)	\({\checkmark}\)		\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)
Thermal Energy
Species Mass
Time-Stepping
Euler	\({\checkmark}\)					\({\checkmark}\)
Adams-Bashforth	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)
Spring-Dashpot
Linear	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)
Hertzian					\({\checkmark}\)
Collisions
Particle-particle			\({\checkmark}\)		\({\checkmark}\)
Particle-wall	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)	\({\checkmark}\)
Friction
Particle-particle					\({\checkmark}\)
Particle-wall				\({\checkmark}\)	\({\checkmark}\)
Distributed Memory
Shared Memory

† C-Incorporated into the continuous integration server; M-Monthly; Q-Quarterly; X-Manual; D-Disabled

‡ A-Analytical solution; P-Published benchmark data; R-Regression data from previous code versions