MRT transformation matrix

[Mike]

Dear developers,
I notice that D2Q9 MRT transformation matrix in mrtLatticeDescriptors.h is different from that in the literature “Viscous flow computations with the method of lattice Boltzmann equation”, and when I try both transformation matrices, I find that the latter goes wrong while the former seems fine, I wonder why this happens?
Yours Sincerely,
Mike

[stephan]

Dear Mike,

thanks for your comment.
The difference in the code is due to a different ordering of discrete velocities (columns) and moment polynomials (rows).

BR
Stephan

[Mike]

Dear stephan,

thanks for your reply!

BR
Mike

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