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bond_style hybrid command

Syntax:

bond_style hybrid style1 style2 ... 

Examples:

bond_style hybrid harmonic fene
bond_coeff 1 harmonic 80.0 1.2
bond_coeff 2* fene 30.0 1.5 1.0 1.0 

Description:

The hybrid style enables the use of multiple bond styles in one simulation. A bond style is assigned to each bond type. For example, bonds in a polymer flow (of bond type 1) could be computed with a fene potential and bonds in the wall boundary (of bond type 2) could be computed with a harmonic potential. The assignment of bond type to style is made via the bond_coeff command or in the data file.

In the bond_coeff command, the first coefficient sets the bond style and the remaining coefficients are those appropriate to that style. In the example above, the 2 bond_coeff commands would set bonds of bond type 1 to be computed with a harmonic potential with coefficients 80.0, 1.2 for K, r0. All other bond types (2-N) would be computed with a fene potential with coefficients 30.0, 1.5, 1.0, 1.0 for K, R0, epsilon, sigma.

A bond style of none can be specified as an argument to bond_style hybrid and the corresponding bond_coeff commands, if you desire to turn off certain bond types.

Restrictions: none

Related commands:

bond_coeff, delete_bonds

Default: none