Chapter II-6. Hydrodynamics of Tidal Inlets
Figure II-6-1. Typical structured and unstructured inlet
Inlet characteristics.
Figure II-6-2. Typical ebb-tidal delta morphology (Hayes 1980)
Inlet Hydrodynamics
Figure II-6-4. Ebb delta area measurement (Vincent and Corson 1980)
Inlet currents and tidal elevations.
Figure II-6-6. Amw versus ebb-tidal delta area (AED) (Vincent and Corson 1980)
Inertia of the mass of the water in the channel is negligible.
Figure II-6-7. Amw versus maximum channel depth at minimum width section DMX (Vincent and Corson 1980)
Figure II-6-8. Amw versus minimum controlling channel depth DCC (Vincent and Corson 1980)
Figure II-6-9. Tidal prism-inlet area relationship
Figure II-6-10. Schematic diagram of flood and ebb currents outside an inlet (O'Brien 1969)
Figure II-6-11. Wave refraction pattern in the vicinity of the Merrimack River Estuary entrance, just south of the Merrimack Inlet (from Hayes (1971))
Figure II-6-12. Ebb and flood flow patterns from a model study of Masonboro Inlet, North Carolina (Seabergh 1975)
Figure II-6-13. Tidal current plus wave-generated currents approaching jettied inlet, measured in physical model study
Figure II-6-14. Sediment transport gyres associated with both updrift and downdrift portions of the delta at Essex River Inlet, Massachusetts.
Figure II-6-15. Inlet bay system
Determining important inlet parameters.
Figure II-6-18. Ratio of bay to sea tidal amplitude versus K1 and K2
Figure II-6-20. Bay tidal phase lag versus K1 and K2
Figure II-6-21. Inlet flow net
Figure II-6-22. Inlet impedance (F) versus the ratio of inlet length to inlet hydraulic radius to the 4/3 power (l/R4/3) for various inlet width to inlet hydraulic radius ratios, W/R
EXAMPLE PROBLEM II-6-1
Figure II-6-23. Results from Example Problem II-6-1
Evaluating inlet hydraulics with Keulegan K
Figure II-6-24. Hydraulic response of inlet and bay tide phasing and bay tide amplitude for various Keulegan K values
Table II-6-1. Hydraulic Characteristics of Tidal Inlets by Cubature Method
Bay superelevation.
Figure II-6-26. ab min/ao versus K for values of QrN (river discharge model)
Figure II-6-27. u max e versus K for values of QrN (river discharge model)
Tidal constituents.
Figure II-6-29. ε versus K for values of QrN (river discharge model)
EXAMPLE PROBLEM II-6-2
EXAMPLE PROBLEM II-6-2 (cont)
Figure II-6-31. Duration of outflow relative to bay superelevation
Multiple inlets.
Figure II-6-32. Plume expansion
Tidal dispersion and mixing.
Figure II-6-34. Contours of dimensionless wave height factor RH given by Equation II-6-29.
EXAMPLE PROBLEM II-6-3
EXAMPLE PROBLEM II-6-4
Current-channel interaction.
Figure II-6-35. Refraction of currents by channel
Figure II-6-36. Typical inlet flow nets
Figure II-6-38. Sea and bay water elevations at inlet 1
Hydrodynamic and Sediment Interaction at Tidal Inlets
Table II-6-3. Tidal Prism-Minimum Channel Cross-sectional Area Relationships
Inlet stability analysis.
Inlet stability analysis. (cont)
Figure II-6-42. Escoffier (1940) diagram, maximum velocity and equilibrium velocity versus inlet cross-sectional area
Table II-6-4. Inlet Stability Ratings
Methods to predict channel shoaling.
Figure II-6-45. Little River Inlet geographical variability
EXAMPLE PROBLEM II-6-5
Figure II-6-47. 1988 and 1989 bathymetry of Moriches Inlet
Figure II-6-48. Weir jetty flow patterns
Phase III: Regression analysis.
Ebb tidal energy flux.
Inlet weir jetty hydraulic and sediment interaction.
References - Part-II-Chap60067
References (cont) - Part-II-Chap60068
References (cont) - Part-II-Chap60069
References (cont) - Part-II-Chap60070
References (cont) - Part-II-Chap60071
References (cont) - Part-II-Chap60072
References (cont) - Part-II-Chap60073
References (cont) - Part-II-Chap60074
References (cont) - Part-II-Chap60075
Definitions of Symbols - Part-II-Chap60076
Definitions of Symbols (cont) - Part-II-Chap60077
Definitions of Symbols (cont) - Part-II-Chap60078
Acknowledgments - Part-II-Chap60079
Part-II-Chap6
Figure II-6-1. Typical structured and unstructured inlet
Inlet characteristics.
Figure II-6-2. Typical ebb-tidal delta morphology (Hayes 1980)
Inlet Hydrodynamics
Figure II-6-4. Ebb delta area measurement (Vincent and Corson 1980)
Inlet currents and tidal elevations.
Figure II-6-6. Amw versus ebb-tidal delta area (AED) (Vincent and Corson 1980)
Inertia of the mass of the water in the channel is negligible.
Figure II-6-7. Amw versus maximum channel depth at minimum width section DMX (Vincent and Corson 1980)
Figure II-6-8. Amw versus minimum controlling channel depth DCC (Vincent and Corson 1980)
Figure II-6-9. Tidal prism-inlet area relationship
Figure II-6-10. Schematic diagram of flood and ebb currents outside an inlet (O'Brien 1969)
Figure II-6-11. Wave refraction pattern in the vicinity of the Merrimack River Estuary entrance, just south of the Merrimack Inlet (from Hayes (1971))
Figure II-6-12. Ebb and flood flow patterns from a model study of Masonboro Inlet, North Carolina (Seabergh 1975)
Figure II-6-13. Tidal current plus wave-generated currents approaching jettied inlet, measured in physical model study
Figure II-6-14. Sediment transport gyres associated with both updrift and downdrift portions of the delta at Essex River Inlet, Massachusetts.
Figure II-6-15. Inlet bay system
Determining important inlet parameters.
Figure II-6-18. Ratio of bay to sea tidal amplitude versus K1 and K2
Figure II-6-20. Bay tidal phase lag versus K1 and K2
Figure II-6-21. Inlet flow net
Figure II-6-22. Inlet impedance (F) versus the ratio of inlet length to inlet hydraulic radius to the 4/3 power (l/R4/3) for various inlet width to inlet hydraulic radius ratios, W/R
EXAMPLE PROBLEM II-6-1
Figure II-6-23. Results from Example Problem II-6-1
Evaluating inlet hydraulics with Keulegan K
Figure II-6-24. Hydraulic response of inlet and bay tide phasing and bay tide amplitude for various Keulegan K values
Table II-6-1. Hydraulic Characteristics of Tidal Inlets by Cubature Method
Bay superelevation.
Figure II-6-26. ab min/ao versus K for values of QrN (river discharge model)
Figure II-6-27. u max e versus K for values of QrN (river discharge model)
Tidal constituents.
Figure II-6-29. ε versus K for values of QrN (river discharge model)
EXAMPLE PROBLEM II-6-2
EXAMPLE PROBLEM II-6-2 (cont)
Figure II-6-31. Duration of outflow relative to bay superelevation
Multiple inlets.
Figure II-6-32. Plume expansion
Tidal dispersion and mixing.
Figure II-6-34. Contours of dimensionless wave height factor RH given by Equation II-6-29.
EXAMPLE PROBLEM II-6-3
EXAMPLE PROBLEM II-6-4
Current-channel interaction.
Figure II-6-35. Refraction of currents by channel
Figure II-6-36. Typical inlet flow nets
Figure II-6-38. Sea and bay water elevations at inlet 1
Hydrodynamic and Sediment Interaction at Tidal Inlets
Table II-6-3. Tidal Prism-Minimum Channel Cross-sectional Area Relationships
Inlet stability analysis.
Inlet stability analysis. (cont)
Figure II-6-42. Escoffier (1940) diagram, maximum velocity and equilibrium velocity versus inlet cross-sectional area
Table II-6-4. Inlet Stability Ratings
Methods to predict channel shoaling.
Figure II-6-45. Little River Inlet geographical variability
EXAMPLE PROBLEM II-6-5
Figure II-6-47. 1988 and 1989 bathymetry of Moriches Inlet
Figure II-6-48. Weir jetty flow patterns
Phase III: Regression analysis.
Ebb tidal energy flux.
Inlet weir jetty hydraulic and sediment interaction.
References - Part-II-Chap60067
References (cont) - Part-II-Chap60068
References (cont) - Part-II-Chap60069
References (cont) - Part-II-Chap60070
References (cont) - Part-II-Chap60071
References (cont) - Part-II-Chap60072
References (cont) - Part-II-Chap60073
References (cont) - Part-II-Chap60074
References (cont) - Part-II-Chap60075
Definitions of Symbols - Part-II-Chap60076
Definitions of Symbols (cont) - Part-II-Chap60077
Definitions of Symbols (cont) - Part-II-Chap60078
Acknowledgments - Part-II-Chap60079
Part-II-Chap6
