Forces on an A.C.V. Executing an Unsteady Motion 



LIST OF FIGURES 



1. Pressure Distribution Used 



2. The Two Coordinate Systems 



3. Wave Resistance for Different Amounts of Smoothing 



(a) Deep Water 



(b) Finite Depth 



4. Wave Resistance for Different Depths 



5. Wave Resistance for Different Beam to Length Ratios 



6. Unsteady Two -Dimensional Wave Resistance 



(a) Deep Water 



(b) Finite Depth 



7. Unsteady Three -Dimensional Wave Resistance 



(a) Deep Water 



(b) Finite Depth 



8. Image System Used to Represent Tank Walls 



9. Wave Resistance in an Endless Tank 



(a) Deep Water 



(b) Finite Depth 



10. Unsteady Wave Resistance for Different Widths of an Endless Tank 



(a) Deep Water, c/g = 0.05 



(b) Deep Water, c/g = 0. 1 



(c) Finite Depth, c/g = 0.05 



(d) Finite Depth, c/g = 0. 1 



11. Unsteady Wave Resistance for Different Locations of Tank Ends 

 in Finite Depth 



(a) Infinitely Wide Tank 



(b) Two -Dimensional Pressure Band 



12. Axis System Fixed to Craft 



13. Wave Resistance in Deep Water while Yawed 



(a) For Different Amounts of Smoothing 



(b) For Different Froude Numbers 



14. Side Force in Deep Water while Yawed 



(a) For Different Amounts of Smoothing 



(b) For Different Froude Numbers 



15. Unsteady Side Force in Deep Water while Yawing 



(a) F = 0. 6 



(b) F = 1.0 



65 



