Introduction - TR-03-60016Commerce at Port of Anchorage in 2001 (City of Anchorage Web Site)Problem BackgroundTurbulent scale effect in geometrically distorted physical modelsTask 2: Small-area idealized flow model of Cook InletCoastal and Hydraulics Laboratory Flow TableFigure 3. Side view of CHL flow tableFigure 5. View of traversing system looking down through glass bottomIdealized Cook Inlet ModelsFigure 6. Area coverage of large-area and small-area idealized modelsLarge-Area Model DescriptionFigure 7. Idealized bathymetry in large-area modelFigure 8. Cutting large-area model pieces with routerLarge-Area Model ObservationsFigure 10. Flood flow in large-area idealized modelFigure 12. Alaska District engineers observe dye patterns in large-area idealized modelSmall-Area Model DescriptionSmall-Area Model ObservationsFigure 14. Cutting small-area model pieces with routerFigure 16. Idealized bathymetry in small-area modelFigure 17. Small-area idealized model positioning on flow tableConclusions From Idealized ModelsTurbulence Scale Effect in Distored ModelsGeometrically Distorted ModelsTurbulence Similitude in Geometrically Distorted ModelsTurbulence Similitude in Geometrically Distorted Models cont'd - TR-03-60041Turbulence Similitude in Geometrically Distorted Models cont'd - TR-03-60042Turbulence Similitude in Geometrically Distorted Models cont'd - TR-03-60043Turbulence Similitude in Geometrically Distorted Models cont'd - TR-03-60044Anticipated Scale EffectsAnticipated Scale Effects cont'dFlow at BendFlow at Bend cont'd - TR-03-60048Flow at Bend cont'd - TR-03-60049Flow at Bend cont'd - TR-03-60050Flow at Bend cont'd - TR-03-60051Turbulence Scale Effect ExperimentsCase 4: Flow separation at vertical step - TR-03-60053Table 4 Distorted Model Froude ScalesCase 1: Flow Separation at Vertical Edge - Free JetExperiment setupFigure 20. Experiment setup for Case 1 free jet flow separation at vertical edgeTable 5 Distortion Experimental Scale Factors and ParametersCase 1 resultsFigure 21. Velocity field NQ = 1.5, prototype (Case 1)Figure 23. Velocity field NQ = 1.5, distortion = 4 (Case 1)Figure 25. Comparison between prototype and distortion = 6, NQ = 1.5 (Case 1)Figure 27. Crossflow velocity ratios, distortion = 2,4,6 over prototype (NQ = 1.5, Case 1)Case 1 discussion and conclusionsCase 2 resultsCase 2 discussion and conclusionsFigure 31. Crossflow velocity ratios, distortion = 2,4,6 over prototype (NQ = 1.0, Case 2)Case 3: Flow separation at sloping edgeFigure 33. Cross sections showing distortion for sloping edge testsFigure 35. Velocity field at 2/3 d, NQ =1.0, distortion = 2 (Case 3)Figure 37. Velocity field at 2/3 d, NQ =1.0, distortion = 6 (Case 3)Figure 39. Velocity field at 1/3 d, NQ =1.0, distortion = 2 (Case 3)Figure 41. Velocity field at 1/3 d, NQ =1.0, distortion = 6 (Case 3)Figure 42. Velocity field at 2/3 d, NQ =1.0, prototype vs. distortion = 6 (Case 3)Case 3 discussion and conclusionsFigure 44. Crossflow velocity ratios at 2/3 d, distortion = 2,4,6 over prototype (No = 1.0, Case 3)Figure 46. Crossflow velocity ratios at 1/3 d, distortion = 2,4,6 over prototype (NQ = 1, Case 3)Case 4: Flow Separation at Vertical Step - TR-03-60078Table 7 Distortion in Vertical Step ExperimentFigure 49. Comparison of horizontal flow magnitudes in lee of a vertical stepConclusions from Turbulence Scale Effects ExperimentsImpact of Dredging PlanformFigure 50. Experiment setup for harbor dredging planform configurationDredge Transition Test ResultsFigure 52. Flow leaving dredged region over vertical transitionFigure 54. Flow entering dredged region over vertical transitionFigure 56. Photograph of flow entering dredged region over vertical transitionFigure 57. Photograph of flow entering dredged region over sloping transition7 3-D Cook Inlet ModelFigure 58. Area coverage of 3-D Cook Inlet modelTable 10 Scale Ratios for 3-D ModelModel fabricationFigure 60. Router rough-cut of bathymetryFigure 61. Router finish cut of bathymetryFigure 63. Portion of 3-D model looking downstreamModel operationFigure 66. 3-D Cook Inlet model installed for flood flow3-D Model ObservationsFigure 67. Surface flow tracer showing reduced flow at Port of Anchorage during ebb tideFigure 69. Aerial showing approximate flow separation and entrainment region in lee of Carin Point during ebb tideConclusions from Cook Inlet 3-D ModelConclusions from Cook Inlet 3-D Model cont'dSummary and Conclusions - TR-03-60103Task 3: Turbulence scale effect in distorted physical modelsStudy ConclusionsTurbulence scale effects study conclusionsTurbulence scale effects study conclusions cont'dReferences - TR-03-60108Appendix A Case 1 - Flow Separation at Vertical Edge - Free JetFigure A1. Case 1, Q = 1.5 L/sec, prototypeFigure A3. Case 1, Q = 1.5 L/sec, distortion = 4Figure A5. Case 1, Q = 1.5 L/sec, prototype vs. distortion = 2Figure A7. Case 1, Q = 1.5 L/sec, prototype vs. distortion = 6Figure A9. Case 1, Q = 1.5 L/sec, prototype minus distortion = 4Figure A11. Case 1, Q = 1.5 L/sec, ratios between prototype and distortions 2, 4, and 6Figure A13. Case 1, Q = 1.0 L/sec, prototypeFigure A15. Case 1, Q = 1.0 L/sec, distortion = 4Figure A17: Case 1, Q = 1.0 L/sec, prototype vs. distortion = 2Figure A19. Case 1, Q = 1.0 L/sec, prototype vs. distortion = 6Figure A21. Case 1, Q = 1.0 L/sec, prototype minus distortion = 4Figure A23. Case 1, Q = 1.0 L/sec, ratios between prototype and distortions 2, 4, and 6Figure A25. Case 1, Q = 0.75 L/sec, prototypeFigure A27. Case 1, Q = 0.75 L/sec, distortion = 4Figure A29. Case 1, Q = 0.75 L/sec, prototype vs. distortion = 2Figure A31. Case 1, Q = 0.75 L/sec, prototype vs. distortion = 6Figure A33. Case 1, Q = 0.75 L/sec, prototype minus distortion = 4Figure A35. Case 1, Q = 0.75 L/sec, ratios between prototype and distortions 2, 4, and 6Appendix B Case 2 - Flow Separation at Vertical Edge - Constrained JetFigure B1. Case 2, Q = 1.5 L/sec, prototypeFigure B3. Case 2, Q = 1.5 L/sec, distortion = 4 Figure B5. Case 2, Q = 1.5 L/sec, prototype vs. distortion = 2Figure B7. Case 2, Q = 1.5 L/sec, prototype vs. distortion = 6Figure B9. Case 2, Q = 1.5 L/sec, prototype minus distortion = 4Figure B11. Case 2, Q = 1.5 L/sec, ratios between prototype and distortions 2, 4, and 6Figure B13. Case 2, Q = 1.0 L/sec, prototypeFigure B15. Case 2, Q = 1.0 L/sec, distortion = 4Figure B17. Case 2, Q = 1.0 L/sec, prototype vs. distortion = 2Figure B19. Case 2, Q = 1.0 L/sec, prototype vs. distortion = 6Figure B21. Case 2, Q = 1.0 L/sec, prototype minus distortion = 4Figure B23. Case 2, Q = 1.0 L/sec, ratios between prototype and distortions 2, 4, and 6Figure B25. Case 2, Q = 0.75 L/sec, prototypeFigure B27. Case 2, Q = 0.75 L/sec, distortion = 4Figure B29. Case 2, Q = 0.75 L/sec, prototype vs. distortion = 2Figure B31. Case 2, Q = 0.75 L/sec, prototype vs. distortion = 6Figure B33. Case 2, Q = 0.75 L/sec, prototype minus distortion = 4Figure B35. Case 2, Q = 0.75 L/sec, ratios between prototype and distortions 2, 4, and 6Appendix C Case 3 - Flow Separation at Sloping Edge Figure C1. Case 3 (1/3 d), Q = 1.5 L/sec, prototypeFigure C3. Case 3 (1/3 d), Q = 1.5 L/sec, distortion = 4Figure C5. Case 3 (1/3 d), Q = 1.5 L/sec, prototype vs. distortion = 2Figure C7. Case 3 (1/3 d), Q = 1.5 L/sec, prototype vs. distortion = 6Figure C9. Case 3 (1/3 d), Q = 1.5 L/sec, prototype minus distortion = 4Figure C11. Case 3 (1/3 d), Q = 1.5 L/sec, ratios between prototype and distortions 2, 4, and 6Figure C13. Case 3 (2/3 d), Q = 1.5 L/sec, prototypeFigure C15. Case 3 (2/3 d), Q = 1.5 L/sec, distortion = 4Figure C17. Case 3 (2/3 d), Q = 1.5 L/sec, prototype vs. distortion = 2Figure C19. Case 3 (2/3 d), Q = 1.5 L/sec, prototype vs. distortion = 6Figure C21. Case 3 (2/3 d), Q = 1.5 L/sec, prototype minus distortion = 4Figure C23. Case 3 (2/3 d), Q = 1.5 L/sec, ratios between prototype and distortions 2, 4, and 6Figure C25. Case 3 (1/3 d), Q = 1.0 L/sec, prototypeFigure C27. Case 3 (1/3 d), Q = 1.0 L/sec, distortion = 4Figure C29. Case 3 (1/3 d), Q = 1.0 L/sec, prototype vs. distortion = 2Figure C31. Case 3 (1/3 d), Q = 1.0 L/sec, prototype vs. distortion = 6Figure C33. Case 3 (1/3 d), Q = 1.0 L/sec, prototype minus distortion = 4Figure C35. Case 3 (1/3 d), Q = 1.0 L/sec, ratios between prototype and distortions 2, 4, and 6Figure C37. Case 3 (2/3 d), Q = 1.0 L/sec, prototypeFigure C39. Case 3 (2/3 d), Q = 1.0 L/sec, distortion = 4Figure C41. Case 3 (2/3 d), Q = 1.0 L/sec, prototype vs. distortion = 2Figure C43. Case 3 (2/3 d), Q = 1.0 L/sec, prototype vs. distortion = 6Figure C45. Case 3 (2/3 d), Q = 1.0 L/sec, prototype minus distortion = 4Figure C47. Case 3 (2/3 d), Q = 1.0 L/sec, ratios between prototype and distortions 2, 4, and 6REPORT DOCUMENTATION PAGE - TR-03-60172(Concluded) - TR-03-60173TR-03-6