This adds support for BDF2. I've also moved the force accumulation to a separate function. Note that d_viscous_time_stepping_type should not be used and has been replaced with d_viscous_ts_type (because IBAMR does not support BDF2 time integration yet).
This adds support for BDF2. I've also moved the force accumulation to a separate function. Note that
d_viscous_time_stepping_typeshould not be used and has been replaced withd_viscous_ts_type(because IBAMR does not support BDF2 time integration yet).