Introuduction Lake Binaba Lake Modeling Conclusion

CFD Modeling of Shallow and Small
Lakes
(Case Study: Lake Binaba)
Ali ...
Introuduction Lake Binaba Lake Modeling Conclusion

1

Introuduction
What is CFD?
Why CFD?
Where is CFD Used?
Numerical Me...
Introuduction Lake Binaba Lake Modeling Conclusion

1

Introuduction
What is CFD?
Why CFD?
Where is CFD Used?
Numerical Me...
Introuduction Lake Binaba Lake Modeling Conclusion

What is CFD?
CFD : Computational Fluid Dynamics
The result of the confl...
Introuduction Lake Binaba Lake Modeling Conclusion

Why CFD?

Analysis and design:
more cost effective and more rapid than ...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?
Aerospace
Automotive
Biomedical
Hydraulics
Marine
O...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?

Figure 1 : Smoothing the cap over a swimmer´ head ...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?

Figure 2 : Fishway optimization: a numerical model...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?

Figure 3 : CFD: a valuable design tool in water re...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?

Figure 4 : CFD modeling of water flow in a basin
Al...
Introuduction Lake Binaba Lake Modeling Conclusion

Where is CFD Used?

Figure 5 : Trees will reduce campus storms(Dr. Sas...
Introuduction Lake Binaba Lake Modeling Conclusion

Numerical Methods

The continuous Initial Boundary Value Problems(IBVP...
Introuduction Lake Binaba Lake Modeling Conclusion

Modeling
Modeling is the mathematical physics problem formulation
in t...
Introuduction Lake Binaba Lake Modeling Conclusion

Flow Conditions

Based on the physics of the fluids phenomena, CFD can ...
Introuduction Lake Binaba Lake Modeling Conclusion

1

Introuduction
What is CFD?
Why CFD?
Where is CFD Used?
Numerical Me...
Introuduction Lake Binaba Lake Modeling Conclusion

Description
Lake Binaba:
Location: an artificial lake located in northe...
Introuduction Lake Binaba Lake Modeling Conclusion

Description
Location

Lake Binaba

Figure 6 : Lake Binaba in Ghana
Ali...
Introuduction Lake Binaba Lake Modeling Conclusion

Description
Location

Lake Binaba

Figure 7 : Location of lake Binaba(...
Introuduction Lake Binaba Lake Modeling Conclusion

Aims of the study
To develop a three-dimensional time-dependent
hydrod...
Introuduction Lake Binaba Lake Modeling Conclusion

1

Introuduction
What is CFD?
Why CFD?
Where is CFD Used?
Numerical Me...
Introuduction Lake Binaba Lake Modeling Conclusion

CFD Model

��� ���������� ��������
��������

�������

���� �����
�����...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Main steps in preparing the bathymetry of lake to use i...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Reading initial point cloud

Reading the coordinates of...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Adding extra points in point cloud to improve the gener...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Generating the STL file

STL (STereoLithography) format ...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Generating the STL file

Figure 11 : STL file from meshLa...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Cleaning the STL file

The generated STL file should be c...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Seperating Boundaries

Water surface
Bottom and sides o...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Generating the computational mesh or CFD mesh

Refinig t...
Introuduction Lake Binaba Lake Modeling Conclusion

Pre-processing
Checking the mesh

Generated mesh should be satisfy the...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Equations
Continuity equation:
∂uj
= 0,
∂xj

(1...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Initail Conditions

ICs should not affect final r...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Boundary Conditions

Temperature
ρ0 Cp κeff

∂T
...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Meteorogical measurements

40
Tair

T [C]

35

...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Meteorogical measurements

Figure 18 : Time-dep...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Solver

Open Source Field Operation and Manipul...
Introuduction Lake Binaba Lake Modeling Conclusion

Solving the Flow Field
Running in parallel

OF runs in parallel
We nee...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing

Figure 19 : Bathymetry of lake Binaba
Ali Abbasi — CF...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Velocity

Figure 20 : Velocity in t=3930 s (V.S:10)
Al...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Velocity

Figure 21 : Velocity in t=3930 s (V.S:10)
Al...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Temperature

Figure 22 : Temperature in t=3930 s (V.S:...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Source term in T

Figure 23 : Temperature source term ...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Velocity

Figure 24 : Velocity in t=5640 s (V.S:10)
Al...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Temperature

Figure 25 : Temperature in t=5640 s (V.S:...
Introuduction Lake Binaba Lake Modeling Conclusion

Post-processing
Velocity

Figure 26 : Velocity in t=7440 s (V.S:10)
Al...
Introuduction Lake Binaba Lake Modeling Conclusion

1

Introuduction
What is CFD?
Why CFD?
Where is CFD Used?
Numerical Me...
Introuduction Lake Binaba Lake Modeling Conclusion

Conclusion
CFD modeling and graphical output provides a detailed
visua...
Introuduction Lake Binaba Lake Modeling Conclusion

Thanks For your Attention

Ali Abbasi — CFD Modeling of Shallow and Sm...
Upcoming SlideShare
Loading in …5
×

CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba)

1,131 views
1,012 views

Published on

Includes:
1- Introduction to CFD
2- Description of the Lake
3- OpenFOAM
4- Pre-processing
5- Solving
6- Post-processing

Published in: Technology
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,131
On SlideShare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
70
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba)

  1. 1. Introuduction Lake Binaba Lake Modeling Conclusion CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) Ali Abbasi Nick van de Giesen Department of Water Management Delft University of Technology November 28, 2013 Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 1/48
  2. 2. Introuduction Lake Binaba Lake Modeling Conclusion 1 Introuduction What is CFD? Why CFD? Where is CFD Used? Numerical Methods Modeling Flow Conditions 2 Lake Binaba Description Aims of the study 3 Lake Modeling CFD Model Pre-processing Solving the Flow Field Post-processing 4 Conclusion Conclusion Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 2/48
  3. 3. Introuduction Lake Binaba Lake Modeling Conclusion 1 Introuduction What is CFD? Why CFD? Where is CFD Used? Numerical Methods Modeling Flow Conditions 2 Lake Binaba Description Aims of the study 3 Lake Modeling CFD Model Pre-processing Solving the Flow Field Post-processing 4 Conclusion Conclusion Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 3/48
  4. 4. Introuduction Lake Binaba Lake Modeling Conclusion What is CFD? CFD : Computational Fluid Dynamics The result of the confluence of fluid dynamics and a range of allied subjects: Numerical Methods Grid Generation Computational Geometry Computer-aided Geometric Design Computer Graphics Parallel Computing Simulation of fluid engineering systems using modeling and numerical methods Analytical Fluid Dynamics(AFD) and Experimental Fluid Dynamics(EFD) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 4/48
  5. 5. Introuduction Lake Binaba Lake Modeling Conclusion Why CFD? Analysis and design: more cost effective and more rapid than EFD CFD provides high-fidelity database for diagnosting flow field Simulation of physical fluid phenomena that are difficult for experiments: full scale simulations environmental effects(wind, weather, etc.) hazards (explosions, pollution) physics (plantetary boundary layer) Knowledge and exploration of flow physics. Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 5/48
  6. 6. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Aerospace Automotive Biomedical Hydraulics Marine Oil & Gas Power generation ... Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 6/48
  7. 7. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Figure 1 : Smoothing the cap over a swimmer´ head significantly improves s hydrodynamic performance Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 7/48
  8. 8. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Figure 2 : Fishway optimization: a numerical modeling study Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 8/48
  9. 9. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Figure 3 : CFD: a valuable design tool in water resources Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 9/48
  10. 10. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Figure 4 : CFD modeling of water flow in a basin Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 10/48
  11. 11. Introuduction Lake Binaba Lake Modeling Conclusion Where is CFD Used? Figure 5 : Trees will reduce campus storms(Dr. Sasa Kenjere-Delta Magazine) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 11/48
  12. 12. Introuduction Lake Binaba Lake Modeling Conclusion Numerical Methods The continuous Initial Boundary Value Problems(IBVPs) are discretized into algebraic equations using numerical methods numerical methods include: Discretization method Solvers and numerical parameters Grid generation and transformation High performance computation(HPC) and post-processing Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 12/48
  13. 13. Introuduction Lake Binaba Lake Modeling Conclusion Modeling Modeling is the mathematical physics problem formulation in terms of continuous initial boundary value problem(IBVPs) IBVP is in the form of Partial Differential Equations(PDEs) with appropriate boundary conditions and initial conditions. Modeling includes: Geometry and domain(simple and complex geometry, size and shape) Coordinates Governing equations Flow conditions Initial and boundary conditions select on of models for different applications Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 13/48
  14. 14. Introuduction Lake Binaba Lake Modeling Conclusion Flow Conditions Based on the physics of the fluids phenomena, CFD can be distinguished into different categories using different criteria: Viscous vs. Inviscid (Re) External flow or Internal flow(wall bounded or not) Turbelent vs. Laminar(Re) Incompressible vs. Compressible (Ma) Single- vs. Multi-phase flow Thermal/density effects(Pr) etc. Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 14/48
  15. 15. Introuduction Lake Binaba Lake Modeling Conclusion 1 Introuduction What is CFD? Why CFD? Where is CFD Used? Numerical Methods Modeling Flow Conditions 2 Lake Binaba Description Aims of the study 3 Lake Modeling CFD Model Pre-processing Solving the Flow Field Post-processing 4 Conclusion Conclusion Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 15/48
  16. 16. Introuduction Lake Binaba Lake Modeling Conclusion Description Lake Binaba: Location: an artificial lake located in northern Ghana Surface: the average area of the lake surface is 4.5 km 2 Average depth: only 3 m Maximum depth: 7 m Usage: a small reservoir, used as a form of infrastructure for the provision of water Air temperature: fluctuates between 24 C and 35 C Water surface temperature: varies from 28 C to 33 C Climate: (semi-)arid region Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 16/48
  17. 17. Introuduction Lake Binaba Lake Modeling Conclusion Description Location Lake Binaba Figure 6 : Lake Binaba in Ghana Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 17/48
  18. 18. Introuduction Lake Binaba Lake Modeling Conclusion Description Location Lake Binaba Figure 7 : Location of lake Binaba(Google earth) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 18/48
  19. 19. Introuduction Lake Binaba Lake Modeling Conclusion Aims of the study To develop a three-dimensional time-dependent hydrodynamic and heat transfer model(CFD model) Simulating the effects of wind and atmosphere conditions over a complex bathymetry To predict the circulation patterns as well as the temperature distribution in the water body To compute total heat storage of small shalow lakes and reservoirs in order to estimate evaporation from water surface Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 19/48
  20. 20. Introuduction Lake Binaba Lake Modeling Conclusion 1 Introuduction What is CFD? Why CFD? Where is CFD Used? Numerical Methods Modeling Flow Conditions 2 Lake Binaba Description Aims of the study 3 Lake Modeling CFD Model Pre-processing Solving the Flow Field Post-processing 4 Conclusion Conclusion Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 20/48
  21. 21. Introuduction Lake Binaba Lake Modeling Conclusion CFD Model ��� ���������� �������� �������� ������� ���� ����� ����������� ����� ����������� ������ ��������� �������� �������� ������������� ������������ ������ �������� �������� ������ �������� ������ ����� ������ ��������� ������ ����� ������ ������� ���� ������ ������ ������ ������ �������� ������ � ������������� ���������� ��������� �������� ��������� ��� ��� ���� ������ ����������������������� �� ����� ����������� ����������������� � ���� �� ��� ���� ���� ����������� ����� Figure 8 : CFD simulation workflow Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 21/48
  22. 22. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Main steps in preparing the bathymetry of lake to use in CFD modeling: Reading initial point cloud (x,y,z coordinates from text file) Adding extra points in point cloud to improve the generated STL file Generating the STL file Cleaning & reapairing the STL file Generating the computational mesh or CFD mesh Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 22/48
  23. 23. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Reading initial point cloud Reading the coordinates of points from a text file(points.asc): Figure 9 : Initial point cloud: 642 points (x,y,z) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 23/48
  24. 24. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Adding extra points in point cloud to improve the generated STL file Adding extra points to define the water surface Adding extra points to improve the bathymetry Using ArcMap to interpolate between points Figure 10 : Improved point cloud: 68802 points (x,y,z)(V.S:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 24/48
  25. 25. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Generating the STL file STL (STereoLithography) format is similar to a TIN, except it defines the shell of a volume with a set of interlocking triangular facests: facet normal ni nj outer loop vertex v1x vertex v2x vertex v3x endloop endfacet nk v1y v1z v2y v2z v3y v3z UsingMeshLab(free and open-source STL generator) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 25/48
  26. 26. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Generating the STL file Figure 11 : STL file from meshLab(V.S:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 26/48
  27. 27. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Cleaning the STL file The generated STL file should be clean to can be used in CFD modeling Using addmesh (free and open-source STL cleaner) Figure 12 : Final STL file(V.S:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 27/48
  28. 28. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Seperating Boundaries Water surface Bottom and sides of lake Figure 13 : Final geometry used in meshing(V.S:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 28/48
  29. 29. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Generating the computational mesh or CFD mesh Refinig the mesh near the boundaries nPoints:9,241,729; nCells:7,913,145 ∆x = 1.5m; ∆y = 1.6m; ∆z = 0.25(0.125)m Figure 14 : CFD mesh(Vertical Scale:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 29/48
  30. 30. Introuduction Lake Binaba Lake Modeling Conclusion Pre-processing Checking the mesh Generated mesh should be satisfy the criteria Figure 15 : z component of normal vector of cells(V.S:100) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 30/48
  31. 31. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Equations Continuity equation: ∂uj = 0, ∂xj (1) Momentum equations using Boussinesq approach ∂ui ∂ + (uj ui ) ∂t ∂xj − ∂ ∂xj − νeff ∂ui ∂uj + ∂xj ∂xi − 2 3 ∂uk ∂xk δij = (2) ∂p + gi [1 − β(T − Tref )] ∂xi Temperature in the water body ∂T ∂ ∂ ∂T + (Tuj ) − κeff ( ) = ST ∂t ∂xj ∂xk ∂xk (3) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 31/48
  32. 32. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Initail Conditions ICs should not affect final results Only affect the number of iterations to reach converged solution Figure 16 : Initial condition for T Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 32/48
  33. 33. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Boundary Conditions Temperature ρ0 Cp κeff ∂T ∂z = Hnet (4) τsurf ,u = ρ0 (νt + ν) ∂u ∂z (5) τsurf ,v = ρ0 (νt + ν) ∂v ∂z (6) surf Velocity 2 2 τsurf ,u = CD ρair v10 + u10 2 2 τsurf ,v = CD ρair v10 + u10 1 2 1 2 .u10 (7) .v10 (8) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 33/48
  34. 34. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Meteorogical measurements 40 Tair T [C] 35 Twater−surf ace 30 25 20 15 0 10 20 30 40 50 1000 HLA HeatFluxes[W/m2 ] 800 HLW 600 Hns 400 HS HE 200 Hnet 0 Rs −200 −400 0 10 20 30 40 Time[hr] Figure 17 : Time-dependent parameters using as B.C Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 34/48
  35. 35. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Meteorogical measurements Figure 18 : Time-dependent parameters using as B.C Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 35/48
  36. 36. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Solver Open Source Field Operation and Manipulation (OpenFOAM) Open-Source Library Free of Charge in LINUX C++ Library Linking with PYTHON Special Issue new SOLVERS and UTILITIES Can be Created by USERS Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 36/48
  37. 37. Introuduction Lake Binaba Lake Modeling Conclusion Solving the Flow Field Running in parallel OF runs in parallel We need to run the model in parallel Decomposing the domain accoeding to the availabe sources Using MPI OF was tested at least for 1000 cores! Using GPU Lake Binaba We are running the model on 64 and 36 nodes Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 37/48
  38. 38. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Figure 19 : Bathymetry of lake Binaba Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 38/48
  39. 39. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Velocity Figure 20 : Velocity in t=3930 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 39/48
  40. 40. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Velocity Figure 21 : Velocity in t=3930 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 40/48
  41. 41. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Temperature Figure 22 : Temperature in t=3930 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 41/48
  42. 42. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Source term in T Figure 23 : Temperature source term in t=3930 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 42/48
  43. 43. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Velocity Figure 24 : Velocity in t=5640 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 43/48
  44. 44. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Temperature Figure 25 : Temperature in t=5640 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 44/48
  45. 45. Introuduction Lake Binaba Lake Modeling Conclusion Post-processing Velocity Figure 26 : Velocity in t=7440 s (V.S:10) Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 45/48
  46. 46. Introuduction Lake Binaba Lake Modeling Conclusion 1 Introuduction What is CFD? Why CFD? Where is CFD Used? Numerical Methods Modeling Flow Conditions 2 Lake Binaba Description Aims of the study 3 Lake Modeling CFD Model Pre-processing Solving the Flow Field Post-processing 4 Conclusion Conclusion Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 46/48
  47. 47. Introuduction Lake Binaba Lake Modeling Conclusion Conclusion CFD modeling and graphical output provides a detailed visual representation of the modeled system Model results provides a high degree of confidence for project owners, designers, and other stakeholders Computational fluid dynamics (CFD) analysis has proven to be a valuable design tool in the water resources Modelling is one of the best means to gain understanding of complex flow fields Wind over water surface affects lake currents, sensible and latent heat fluxes Buoyancy effect due to density gradiant in water body should be considerd in temperature profile Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 47/48
  48. 48. Introuduction Lake Binaba Lake Modeling Conclusion Thanks For your Attention Ali Abbasi — CFD Modeling of Shallow and Small Lakes (Case Study: Lake Binaba) 48/48

×