[Example 4] Flow in a real river(single cross section) ============================================================================ ---------------- Select Solver ---------------- In the [Select Solver] window, :numref:`04_koshi_1` , select [Nays2d+] and click [OK]. .. _04_koshi_1: .. figure:: images/04/koshi_1.png :width: 250pt : Select Solver ----------------------------------------- Importing River Survey Data ----------------------------------------- In the window, :numref:`04_koshi_2`, select [Import], [Geographic Data], [Elevation(m)] .. _04_koshi_2: .. figure:: images/04/koshi_2.png :width: 250pt : Import river geographic data Chose [single.riv] in the window, :numref:`04_koshi_3` and open. The cross sectional survey data "single.riv" can be downloaded from, https://i-ric.org/yasu/fw/rivfiles/single.riv .. _04_koshi_3: .. figure:: images/04/koshi_3.png :width: 250pt : Select File A message window may appear telling "Problems Fund i Data" as :numref:`04_koshi_4` ,but just click [OK] .. _04_koshi_4: .. figure:: images/04/koshi_4.png :width: 250pt : Prblem Fund Select [Middle point of left and right bank] in the [River Survey Data Import Setting] window as :numref:`04_koshi_5` , and click [OK] .. _04_koshi_5: .. figure:: images/04/koshi_5.png :width: 250pt : River Survay Data Import Setting :numref:`04_koshi_6` riv file import complete. .. _04_koshi_6: .. figure:: images/04/koshi_6.png :width: 450pt : Import Complete ----------------------------- Grid Generation Conditions ----------------------------- From the main menu, select [Grid] and [Select Algorithm to Create Grid] as, :numref:`04_koshi_7` .. _04_koshi_7: .. figure:: images/04/koshi_7.png :width: 450pt : Select Algorithm to Create Grid Select [Create grid from river survey data] from the window, :numref:`04_koshi_8` , and click [OK]. .. _04_koshi_8: .. figure:: images/04/koshi_8.png :width: 450pt : Create grid from river survey data As shown in :numref:`04_koshi_9` , a channel with cross sections with both ends' blue circles are displayed. .. _04_koshi_9: .. figure:: images/04/koshi_9.png :width: 450pt : Setting Grid Create Condition Complete ------------------------- Grid Generation ------------------------- Select any side of one of the cross section line, right click, and chose [Add Division Points]. .. _04_koshi_10: .. figure:: images/04/koshi_10.png :width: 450pt :Add Division Points(1) Set [Division Number], set [4] in this example, and click [OK] (:numref:`04_koshi_11` ) .. _04_koshi_11: .. figure:: images/04/koshi_11.png :width: 450pt :Add Division Points(2) Select one of the opposite side of the cross sectional line we selected in :numref:`04_koshi_10` , right click, and chose [Add Division Points] (:numref:`04_koshi_12` ) .. _04_koshi_12: .. figure:: images/04/koshi_12.png :width: 450pt :Add Division Points(3) Set [Division Number], set [4] as a same number we set in :numref:`04_koshi_11` for the symmetry. .. _04_koshi_13: .. figure:: images/04/koshi_13.png :width: 450pt :Add Division Points(4) Along the channel direction, division points are set all at once. Select [Grid], [Add Division Points Regionally] from the menu bar. ( :numref:`04_koshi_14` ) .. _04_koshi_14: .. figure:: images/04/koshi_14.png :width: 450pt :Add Division Points Regionally(1) Chose [Specify target distance division points]. set distance [70] in this example, and click [OK].( :numref:`04_koshi_15` ) .. _04_koshi_15: .. figure:: images/04/koshi_15.png :width: 450pt :Add Division Points Regionally(2) When the setup for division points are completed, a plane map with yellow circle points appears as :numref:`04_koshi_16` .. _04_koshi_16: .. figure:: images/04/koshi_16.png :width: 450pt :Set division points complete Select [Grid], [Grid Create] from the menu bar.( :numref:`04_koshi_17` ) .. _04_koshi_17: .. figure:: images/04/koshi_17.png :width: 450pt :Grid Create(1) Confirm the grid generation range painted with blue, and click [OK]. .. _04_koshi_18: .. figure:: images/04/koshi_18.png :width: 450pt :Grid Create(2) Answer [Yes] when you asked [Do you want to map?] as :numref:`04_koshi_19` .. _04_koshi_19: .. figure:: images/04/koshi_19.png :width: 450pt :Mapping? Completed grid is shown as :numref:`04_koshi_20` .. _04_koshi_20: .. figure:: images/04/koshi_20.png :width: 450pt :Grid Generation Complete Bed configuration and channel shape can be confirmed by putting checking marks at, [Grid], [Node attributes] and [Elevation (m)]. ( :numref:`04_koshi_21` ) .. _04_koshi_21: .. figure:: images/04/koshi_21.png :width: 450pt :Confirmation of the Mapping Result ------------------------ Computational Condition ------------------------ Select [Calculation Condition] and [Setting] from the min menu as :numref:`04_joken_01` . .. _04_joken_01: .. figure:: images/04/joken_01.png :width: 450pt :Setting Computational Condition Set [Time unit of discharge] as [Hour] and click [Edit], ( :numref:`04_joken_02` ) .. _04_joken_02: .. figure:: images/04/joken_02.png :width: 450pt :Discharge Condition Set discharge hydrography as :numref:`04_joken_03`, constant for 3 hours with 2,000 qms, and click [OK]. .. _04_joken_03: .. figure:: images/04/joken_03.png :width: 300pt :Input Discharge(2) Set [Time and bed erosion condition] as :numref:`04_joken_04` . .. _04_joken_04: .. figure:: images/04/joken_04.png :width: 400pt :Time and bed erosion condition Set "3D Velocity Profile" as shown in the figure :numref:`04_joken_05` , and click [Save and Close] to exit. .. _04_joken_05: .. figure:: images/04/joken_05.png :width: 400pt :3D Velocity Profile Settings -------------------- Launch Computation -------------------- From the menu bar, select [Simulation] and [Run]. .. _04_jikko_01: .. figure:: images/04/jikko_01.png :width: 400pt :Launch Simulation(1) Answer [Yes(Y)] when you asked [Save the project?] as :numref:`04_jikko_02` .. _04_jikko_02: .. figure:: images/04/jikko_02.png :width: 400pt :Launch Simulation(2) Simulation starts. :numref:`04_jikko_03` .. _04_jikko_03: .. figure:: images/04/jikko_03.png :width: 400pt :Launch Simulation(3) Click [OK] when the message [The solver finished calculation] as :numref:`04_jikko_04` .. _04_jikko_04: .. figure:: images/04/jikko_04.png :width: 400pt :Calculation finished ------------------------------- Display Computational Results ------------------------------- After the companion finished, form the main menu, by selecting [Calculation Results] and [Open new 2D Post-Processing Window], a new Window appears as :numref:`04_kekka_01` . .. _04_kekka_01: .. figure:: images/04/kekka_01.png :width: 400pt :2D Post-Process Window ^^^^^^^^^^^ Depth ^^^^^^^^^^^ n the object browser, put the check marks in "Scalar (node)" and "Depth[m]", right-click and select "Properties". The "Scalar Setting" window :numref:`04_kekka_04` appears. .. _04_kekka_04: .. figure:: images/04/kekka_04.png :width: 250pt :Scalar Setting Set the values as shown in :numref:`04_kekka_04`, and click [OK], then :numref:`04_kekka_05` appears. .. _04_kekka_05: .. figure:: images/04/kekka_05.png :width: 450pt : Depth Plot ^^^^^^^^^^^^^^^^^^^^^^^^^^ Display Background Image ^^^^^^^^^^^^^^^^^^^^^^^^^^ Select from the main menu, [File]->[Property] ( :numref:`04_haikei_01` ) .. _04_haikei_01: .. figure:: images/04/haikei_01.png :width: 400pt :Select Property From the "Project Property" window, click [Edit] at [Coordinate System] .. _04_haikei_02: .. figure:: images/04/haikei_02.png :width: 300pt :Edit Coordinate System Setting Input "Japan" in the [Search] window, and chose the one with "XII" from the items with [EPSG:....] as :numref:`04_haikei_03` . See more detail on coordinate system of Japan at http://www.gsi.go.jp/sokuchikijun/jpc.html .. _04_haikei_03: .. figure:: images/04/haikei_03.png :width: 300pt :Select Coordinate System Click [Close] of [Project Property] window of :numref:`04_haikei_04` .. _04_haikei_04: .. figure:: images/04/haikei_04.png :width: 300pt :Close Property Window Put a check mark in a box in front of [Background Images(Internet)] and one of the items listed below, e.g., [Google Map (Satellite Image)] as :numref:`04_haikei_05` .. _04_haikei_05: .. figure:: images/04/haikei_05.png :width: 400pt :Background Image Import Complete ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Velocity Vectors and Streamlines ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Since the operation method is the same as the previous section, it will be omitted. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Particle Animations ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Put check mark at [Particles] and [Velocity] in the object browser, put time bar back to zero, and push black button, ( :numref:`04_particle_01` ). Particle following the depth averaged velocity starts as :numref:`04_particle_02` . .. _04_particle_01: .. figure:: images/04/particle_01.png :width: 400pt :Particle Animation .. _04_particle_02: .. figure:: images/04/particle_02.gif :width: 400pt :Particle movement by depth averaged velocity Put check mark at [Particles] and [Surface Velocity] in the object browser. If you want to change color of particles, right click [Particle] and select [Property]. Set values as :numref:`04_particle_03` and click [OK]. Put the time bar back again to zero, and push black button. Particle following the surface velocity starts as :numref:`04_particle_04` . .. _04_particle_03: .. figure:: images/04/particle_03.png :width: 250pt :Particle Setting .. _04_particle_04: .. figure:: images/04/particle_04.gif :width: 400pt :Particle movement following the surface velocity If you select "Bottom Velocity" in the same procedure, you can show the particle animation following the bottom velocity ads :numref:`04_particle_05` . .. _04_particle_05: .. figure:: images/04/particle_05.gif :width: 400pt :Particle movement following the bottom velocity