1 General Provisions
1.0.1 This regulation is formulated with a view to unifying technical requirements and analysis method of wave model test, increasing the reliability of research achievements, and providing scientific criterion for waterway engineering construction.
1.0.2 This regulation is applicable to physical model test and numerical modelling test for interaction of wave, wave and water flow, wave and building and bench, etc. of waterway engineering on coast, offshore and inland waters, etc.
1.0.3 Wave model test shall not only comply with this regulation, but also those in the current relevant standards of the nation.
2 Terms
2.0.1 Wave model
Model modelling main dynamic factor such as wave and its interaction with building, bench, etc., including physical model and numerical modelling.
2.0.2 Physical model
Solid model by reducing the research object according to a certain similarity criteria.
2.0.3 Numerical modelling
Method of value solving according to definite conditions relative to research object and problem to be solved and through appropriate equations of mathematical physics.
2.0.4 Model scale
Ratio between corresponding physical quantities of prototype and model.
2.0.5 Undistorted model
Model with equal horizontal length scale and vertical length scale.
2.0.6 Distorted model
Model with unequal horizontal length scale and vertical length scale.
2.0.7 Model distortion ratio
Ratio between horizontal length scale and vertical length scale of model.
2.0.8 Geometrical similarity
Proportional relation remaining stationary between linear dimensions of model and prototype.
2.0.9 Kinematic similarity
The ratio of each corresponding speed and acceleration of model and prototype is equal and the direction is same.
2.0.10 Gravity similarity
Ratio equality of components of inertial force and gravity in corresponding direction for model and prototype.
2.0.11 Elastic similarity
Ratio equality of components of inertial force and elastic force in corresponding direction for model and prototype.
2.0.12 Similarity criteria
Rules must be complied with by model and prototype for remaining similar physical phenomena.
2.0.13 Regular wave
Wave that wave height and wave period are constant
2.0.14 Irregular wave
Wave that wave height and wave period vary randomly.
2.0.15 Unidirectional irregular wave
Irregular wave propagating in a single direction, also called two-dimensional irregular wave.
2.0.16 Multi-directional irregular wave
Irregular wave propagating in multiple directions, also called three-dimensional irregular wave.
2.0.17 Frequency spectrum
Distribution that wave energy varies along with frequency.
2.0.18 Direction spectrum
Distribution that wave energy varies along with frequency and direction.
2.0.19 Direction distribution function
Function characterizing wave energy distribution rule along the direction.
2.0.20 Spectrum peak frequency
Frequency corresponding to density peak of frequency spectrum.
2.0.21 Wave energy
Kinetic energy and potential energy of fluctuating water body.
2.0.22 Wave surface
Free surface of fluctuating water body.
2.0.23 Crest line of wave
Connecting line of adjacent wave crest points vertical to wave propagation direction.
2.0.24 Secondary reflection of wave maker
Reflection generated again after the reflected wave from model building and test water channel or water tank propagates to a wave maker.
2.0.25 Wave group
Several continuous waves larger than a certain wave height in wave train.
2.0.26 Specific wave height
Ratio of measuring point wave height and original incident wave height or designated control point wave height.
2.0.27 Littoral sediment transport
Sediment transport in littoral direction, formed under the action of wave and water flow.
2.0.28 Bench cross section
Beach profile vertical to coastline.
2.0.29 Verification test
Test for inspecting and calibrating similarity degree of model and prototype.
2.0.30 Linear wave
Wave described in hydrodynamic equation and boundary condition, only reserved with linear term.
2.0.31 Nonlinear wave
Wave described in hydrodynamic equation and boundary condition, reserved with second order or high order term besides linear term.
2.0.32 Boundary condition
Controlled condition on the boundary in physical model test and numerical modelling.
2.0.33 Initial condition
Initial controlled condition in numerical modelling.
3 Basic Requirements of Wave Physical Model Test
3.1 General Requirements
3.1.1 Physical model test or numerical modelling test shall be selected according to project planning and design requirements for wave model test. If necessary, physical model test and numerical modelling test shall be carried out simultaneously.
3.1.2 Where the problem to be researched in wave model test is capable of being reduced to two-dimensional, sectional mode may be adopted, if not, integral model shall be adopted.
3.1.3 Before wave model test, the test program shall be prepared according to the requirements of test mission. The test program shall include the following content:
(1) Test basis and technical criteria to be complied with;
(2) General, test purpose, content and requirements;
(3) Basic data of test basis, test methods and executive scheme;
(4) Test equipment and measuring instrument;
(5) Main test personnel, test progress pan, anticipated target and test result.
3.1.4 Before physical model test, test equipment and measuring instrument shall be calibrated.
3.1.5 The test result report shall be prepared according to the following format:
(1) Cover, including test result name, responsible organization, participating organization and preparation data;
(2) Title page, including legal representative, technical director, project leader, report preparation personnel and test participant;
(3) Abstract; briefly describing test purpose and method as well as main test conclusion;
(4) Contents, including chapter and section name as well as initial page number of test result report;
(5) Text;
(6) Bibliography.
3.1.6 The text of test result report shall include the following content:
(1) Introduction, including test background, purpose and taken technical route, etc.;
(2) Basic data of test basis, including project profile, project arrangement, building structure, water level, wave, topography, and other hydrology, weather, sediment and geology, etc.;
(3) Test content and technical requirements;
(4) Model design or numerical modelling method, including similarity conditions of physical model, selection of model scale, model arrangement, test equipment and measuring instrument, etc.; determination of governing equation, boundary condition, solution method, dispersion format and parameter of numerical modelling;
(5) Model making, including drawing data, boundary and making accuracy;
(6) Test result analysis;
(7) Epilogue, including main test result, existing problems and advice.
3.1.7 For the project requiring verification test, the text of test result report shall cover the content of verification test similarity and rationality.
1 General Provisions
2 Terms
3 Basic Requirements of Wave Physical Model Test
3.1 General Requirements
3.2 Similarity Criteria
3.3 Wave and Water Flow Modelling
3.4 Test Equipment and Measuring Instrument
3.5 Test Data Acquisition and Processing
4 Integral Physical Model Test
4.1 General Requirements
4.2 Boundary Condition Modelling
4.3 Wave Propagation and Distortion Model Test
4.4 Model Test of Water Area Smoothness in Harbour
4.5 Ship Wave Model Test
5 Section Physical Model Test of Slope and Vertical-wall Buildings
5.1 General Requirements
5.2 Section Mode Test of Slope Buildings
5.3 Section Mode Test of Wide Shoulder Riprap Breakwater
5.4 Section Mode Test of Vertical-wall Buildings
5.5 Overwash Quantity and Wave Runup Test
6 Physical Model Test of Pile Foundation, Pier Column Building and Underwater Pipeline
6.1 General Requirements
6.2 Model Test of Pile Foundation and Pier Column Building
6.3 Model Test of Permeable Building with Beam Slab
6.4 Model Test of Underwater Pipeline
7 Physical Model Test of Floating Building
7.1 General Requirements
7.2 Model Test of Floating Breakwater
7.3 Model Test for Movement Load, Impact Force and Mooring Force of Mooring Ship
8 Physical Model Test of Wave and Sediment
8.1 General Requirements
8.2 Model Test for Wave and Sediment of Littoral Sediment Transport
8.3 Model Test for Wave and Sediment in Beach Profile
8.4 Model Test for Local Scour of Bottom Bed nearby Building
9 Numerical Modelling of Wave
9.1 General Requirements
9.2 Numerical Modelling of Wave
9.3 Numerical Modelling for Wave Propagation of Exposed Water
9.4 Numerical Modelling for Wave Propagation of Waters in the Harbour
9.5 Numerical Modelling of Wave Force
Appendix A Statistic Analysis of Test Data of Irregular Wave
Appendix B Spectral Analysis of Random Data Time Sequence
Appendix C Cross Spectrum Analysis of Random Data Time Sequence
Appendix D Model Test for Multi-directional Wave Composited by Unidirectional Waves
Appendix E Mathematical Model for Wave Refraction
Appendix F Helmholtz Equation Boundary Element Method
Appendix G Explanation of wording in this Regulation
Additional Explanation
Standard
JTJ/T 234-2001 Wave Model Test Regulation (English Version)
1 General Provisions
1.0.1 This regulation is formulated with a view to unifying technical requirements and analysis method of wave model test, increasing the reliability of research achievements, and providing scientific criterion for waterway engineering construction.
1.0.2 This regulation is applicable to physical model test and numerical modelling test for interaction of wave, wave and water flow, wave and building and bench, etc. of waterway engineering on coast, offshore and inland waters, etc.
1.0.3 Wave model test shall not only comply with this regulation, but also those in the current relevant standards of the nation.
2 Terms
2.0.1 Wave model
Model modelling main dynamic factor such as wave and its interaction with building, bench, etc., including physical model and numerical modelling.
2.0.2 Physical model
Solid model by reducing the research object according to a certain similarity criteria.
2.0.3 Numerical modelling
Method of value solving according to definite conditions relative to research object and problem to be solved and through appropriate equations of mathematical physics.
2.0.4 Model scale
Ratio between corresponding physical quantities of prototype and model.
2.0.5 Undistorted model
Model with equal horizontal length scale and vertical length scale.
2.0.6 Distorted model
Model with unequal horizontal length scale and vertical length scale.
2.0.7 Model distortion ratio
Ratio between horizontal length scale and vertical length scale of model.
2.0.8 Geometrical similarity
Proportional relation remaining stationary between linear dimensions of model and prototype.
2.0.9 Kinematic similarity
The ratio of each corresponding speed and acceleration of model and prototype is equal and the direction is same.
2.0.10 Gravity similarity
Ratio equality of components of inertial force and gravity in corresponding direction for model and prototype.
2.0.11 Elastic similarity
Ratio equality of components of inertial force and elastic force in corresponding direction for model and prototype.
2.0.12 Similarity criteria
Rules must be complied with by model and prototype for remaining similar physical phenomena.
2.0.13 Regular wave
Wave that wave height and wave period are constant
2.0.14 Irregular wave
Wave that wave height and wave period vary randomly.
2.0.15 Unidirectional irregular wave
Irregular wave propagating in a single direction, also called two-dimensional irregular wave.
2.0.16 Multi-directional irregular wave
Irregular wave propagating in multiple directions, also called three-dimensional irregular wave.
2.0.17 Frequency spectrum
Distribution that wave energy varies along with frequency.
2.0.18 Direction spectrum
Distribution that wave energy varies along with frequency and direction.
2.0.19 Direction distribution function
Function characterizing wave energy distribution rule along the direction.
2.0.20 Spectrum peak frequency
Frequency corresponding to density peak of frequency spectrum.
2.0.21 Wave energy
Kinetic energy and potential energy of fluctuating water body.
2.0.22 Wave surface
Free surface of fluctuating water body.
2.0.23 Crest line of wave
Connecting line of adjacent wave crest points vertical to wave propagation direction.
2.0.24 Secondary reflection of wave maker
Reflection generated again after the reflected wave from model building and test water channel or water tank propagates to a wave maker.
2.0.25 Wave group
Several continuous waves larger than a certain wave height in wave train.
2.0.26 Specific wave height
Ratio of measuring point wave height and original incident wave height or designated control point wave height.
2.0.27 Littoral sediment transport
Sediment transport in littoral direction, formed under the action of wave and water flow.
2.0.28 Bench cross section
Beach profile vertical to coastline.
2.0.29 Verification test
Test for inspecting and calibrating similarity degree of model and prototype.
2.0.30 Linear wave
Wave described in hydrodynamic equation and boundary condition, only reserved with linear term.
2.0.31 Nonlinear wave
Wave described in hydrodynamic equation and boundary condition, reserved with second order or high order term besides linear term.
2.0.32 Boundary condition
Controlled condition on the boundary in physical model test and numerical modelling.
2.0.33 Initial condition
Initial controlled condition in numerical modelling.
3 Basic Requirements of Wave Physical Model Test
3.1 General Requirements
3.1.1 Physical model test or numerical modelling test shall be selected according to project planning and design requirements for wave model test. If necessary, physical model test and numerical modelling test shall be carried out simultaneously.
3.1.2 Where the problem to be researched in wave model test is capable of being reduced to two-dimensional, sectional mode may be adopted, if not, integral model shall be adopted.
3.1.3 Before wave model test, the test program shall be prepared according to the requirements of test mission. The test program shall include the following content:
(1) Test basis and technical criteria to be complied with;
(2) General, test purpose, content and requirements;
(3) Basic data of test basis, test methods and executive scheme;
(4) Test equipment and measuring instrument;
(5) Main test personnel, test progress pan, anticipated target and test result.
3.1.4 Before physical model test, test equipment and measuring instrument shall be calibrated.
3.1.5 The test result report shall be prepared according to the following format:
(1) Cover, including test result name, responsible organization, participating organization and preparation data;
(2) Title page, including legal representative, technical director, project leader, report preparation personnel and test participant;
(3) Abstract; briefly describing test purpose and method as well as main test conclusion;
(4) Contents, including chapter and section name as well as initial page number of test result report;
(5) Text;
(6) Bibliography.
3.1.6 The text of test result report shall include the following content:
(1) Introduction, including test background, purpose and taken technical route, etc.;
(2) Basic data of test basis, including project profile, project arrangement, building structure, water level, wave, topography, and other hydrology, weather, sediment and geology, etc.;
(3) Test content and technical requirements;
(4) Model design or numerical modelling method, including similarity conditions of physical model, selection of model scale, model arrangement, test equipment and measuring instrument, etc.; determination of governing equation, boundary condition, solution method, dispersion format and parameter of numerical modelling;
(5) Model making, including drawing data, boundary and making accuracy;
(6) Test result analysis;
(7) Epilogue, including main test result, existing problems and advice.
3.1.7 For the project requiring verification test, the text of test result report shall cover the content of verification test similarity and rationality.
Contents of JTJ/T 234-2001
1 General Provisions
2 Terms
3 Basic Requirements of Wave Physical Model Test
3.1 General Requirements
3.2 Similarity Criteria
3.3 Wave and Water Flow Modelling
3.4 Test Equipment and Measuring Instrument
3.5 Test Data Acquisition and Processing
4 Integral Physical Model Test
4.1 General Requirements
4.2 Boundary Condition Modelling
4.3 Wave Propagation and Distortion Model Test
4.4 Model Test of Water Area Smoothness in Harbour
4.5 Ship Wave Model Test
5 Section Physical Model Test of Slope and Vertical-wall Buildings
5.1 General Requirements
5.2 Section Mode Test of Slope Buildings
5.3 Section Mode Test of Wide Shoulder Riprap Breakwater
5.4 Section Mode Test of Vertical-wall Buildings
5.5 Overwash Quantity and Wave Runup Test
6 Physical Model Test of Pile Foundation, Pier Column Building and Underwater Pipeline
6.1 General Requirements
6.2 Model Test of Pile Foundation and Pier Column Building
6.3 Model Test of Permeable Building with Beam Slab
6.4 Model Test of Underwater Pipeline
7 Physical Model Test of Floating Building
7.1 General Requirements
7.2 Model Test of Floating Breakwater
7.3 Model Test for Movement Load, Impact Force and Mooring Force of Mooring Ship
8 Physical Model Test of Wave and Sediment
8.1 General Requirements
8.2 Model Test for Wave and Sediment of Littoral Sediment Transport
8.3 Model Test for Wave and Sediment in Beach Profile
8.4 Model Test for Local Scour of Bottom Bed nearby Building
9 Numerical Modelling of Wave
9.1 General Requirements
9.2 Numerical Modelling of Wave
9.3 Numerical Modelling for Wave Propagation of Exposed Water
9.4 Numerical Modelling for Wave Propagation of Waters in the Harbour
9.5 Numerical Modelling of Wave Force
Appendix A Statistic Analysis of Test Data of Irregular Wave
Appendix B Spectral Analysis of Random Data Time Sequence
Appendix C Cross Spectrum Analysis of Random Data Time Sequence
Appendix D Model Test for Multi-directional Wave Composited by Unidirectional Waves
Appendix E Mathematical Model for Wave Refraction
Appendix F Helmholtz Equation Boundary Element Method
Appendix G Explanation of wording in this Regulation
Additional Explanation
