1. Simplified First Principle Model for Severe
Anne Sofie Nilsen:
Simplified First Principle Model for Severe
Slugging Flow in S-shaped Risers
Supervisor: Sigurd Skogestad
Co-Supervisor: Esmaeil Jahanshahi

2. Offshore field

3. OLGA - Simulations

5. Experiments

6. Flow Diagram

7. Olga Stability map:
Experimental Stability map:

8. Olga (S) vs. Experiment (S):

9. Experiment (S) vs. Simple Model (L)

10. Olga (S) vs. Simple Model (L):

11. Concluding Remarks Do more work with OLGA
Make the extended model for S-riser
More research and comparison