Before revision:  First we preform a reduction technique that is based on a monolithic procedure , where we therefore solve all at once the fluid and the solid problem. Then we present an alternative reduction technique , that is based on a partitioned (or segregated) procedure instead: here the fluid and the solid problem are solved separately and then coupled through a fixed point strategy.
After revision:  First we preform a reduction technique that is based on a monolithic procedure , where we therefore solve all at once the fluid and the solid problems all at once. We then present another reduction technique that is based on a partitioned (or segregated) procedure instead: here the fluid and the solid problem are solved separately and then coupled through a fixed point strategy.