Figures and Movies from Current Research

• Grid of FPSO hull with bilge keels

• Predicted vorticity plots - submerged hull with bilge keels - viscous flow solver (movie, avi file)

• Predicted forces - submerged hull with bilge keels (viscous .vs. inviscid)

• Predicted wave profiles - BEM solver with linearized free-surface conditions (movie, avi file)

Theses

• Kakar, K., Computational Modeling of FPSO Hull Roll Motions and Two-component Marine Propulsion Systems , MS thesis, UT Austin, Ocean Engineering Group, Department of Civil Engineering, August 2002 (also UT-OE Report 02-3) (9.8 Mbs)

 

• Kacham, B., Inviscid and Viscous 2D Unsteady Flow Solvers Applied to FPSO Hull Roll Motions, MS thesis, UT Austin, Ocean Engineering Group, Department of Civil Engineering, December 2004 (also UT-OE Report 04-7) (4.3 Mbs)

 

Conferences

• ISOPE 2003 (Honolulu, Hawaii, May 25-30, 2003)

>> Paper : Kinnas, S.A., Yu, Y.-H., Lee, H., Kakar, K., Modeling of Oscillating Flow Past a Vertical Plate,The 13th International Offshore and Polar Engineering Conference, Honolulu, Hawaii, May 25-30, 2003, pp.218-226 (3.3 Mbs)


>> Presentation : MS powerpoint (3.2MB)

>> Movies

    (1) Vorticity around Plate at KC=1 (avi file) (1.1MB)

    (2) Vorticity around Plate at KC=10 (avi file) (0.8MB)

• SNAME 2003 (Houston, Texas, February 19, 2003)

>> Paper : Kinnas, S.A., Yu, Y.-H., Kacham, B., Lee, H., A Model of the Flow around Bilge Keels of FPSO Hull Sections subject to Roll Motions, The 12th Offshore Symposium, Texas Section of SNAME, Houston, TX, February 19, 2003. (1.6 Mbs)


>> Presentation : MS powerpoint (6.5MB)

>> Movies

    (1) Vorticity around Plate at KC=1 (avi file) (1.1MB)

    (2) Vorticity around Plate at KC=10 (avi file) (0.8MB)

Seminars

• EWRE Seminar : Yu, Y.-H., Modeling of the Unsteady Separated Flow over Bilge Keels of FPSO Hulls under Heave or Roll Motions , The University of Texas at Austin, September 23, 2004

>> Presentation : MS powerpoint (10.2MB)

>> Movies

    (1) Predicted wave profiles - viscous flow solver with linearized free-surface effects (avi file)(0.5MB)

    (2) Predicted vorticity (Roll motion of FPSO) - viscous flow solver (avi file) (0.4MB)

    (3) Predicted vorticity (Roll motion of Submerged body) - viscous flow solver (avi file) (1.4MB)

MMS/OTRC Review Meeting (Oct. 26, 2004)

• Presentation : FPSO Roll Mitigation , The University of Texas at Austin, October 26, 2004

>> Presentation : MS powerpoint (11.0MB)

>> Movies

    (1) Predicted wave profile and Pressure distribution of a FPSO Hull with 4% Bilge Keel subject to Roll Motion at Fn=0.6 (avi file)(1.4MB)

    (2) Predicted vorticity Contour of a FPSO Hull with 4% Bilge Keel subject to Roll Motion at Fn=0.6 (avi file) (1.5MB)

    (3) Predicted vorticity contour of a FPSO Hull with 4% Horizontal Bilge Keels subject to Roll Motion at Fn=1.0 (avi file) (1.2MB)

    (4) Predicted vorticity contour of a FPSO Hull with 4% Vertical Bilge Keels subject to Roll Motion at Fn=1.0 (avi file) (1.3MB)

    (5) Predicted Hull motion and Wave Elevation : Non-linear 20 degrees of Roll motion (avi file) (1.1MB)

    (6) Predicted Hull motion and Wave Elevation : Non-linear 5 degrees of Roll motion (avi file) (6.2MB)