Computer Aided Design

محاضرة بعنوان
REE 407 – Computer Aided Design – Fall 2018
Dr. Ahmed Nagib Elmekawy
Lecture 1
Finite Element Analysis Overview
Module 01: Core Skills
Introduction to ANSYS Meshing
Overview
In this lecture we will learn:
– Meshing Fundamentals
– ANSYS Meshing interface
– Geometry concepts
– Meshing methods
– Diagnostics & Usability
– Display Option
– Mesh Statistics & Mesh Metrics
Module 3: Global Mesh Controls
Introduction to ANSYS Meshing
Global Mesh Controls
What you will learn from this presentation
– Introduction to Global Mesh Controls
– Defaults
– General Sizing Controls & Advanced Size Functions
– Global Inflation
– Assembly Meshing Controls
– Statistics
Lecture 5
Finite Difference
Boundary Conditions
Outline
– Overview.
– Inlet and outlet boundaries.
– Velocity.
– Pressure boundaries and others.
– Wall, symmetry, periodic and axis boundaries.
– Internal cell zones.
– Fluid, porous media, moving cell zones.
– Solid.
– Internal face boundaries.
– Material properties.
– Proper specification.
Fluent Solver Settings
Lecture Theme:
Fluent requires inputs (solver settings) which tell it how to calculate the
solution. By introducing the concepts of accuracy, stability and
convergence, the purpose of each setting can be understood. Emphasis
will be placed on convergence, which is critical for the CFD simulation.
Learning Aims:
You will learn:
How to choose the solver and the discretization schemes
How to initialize the solution
How to monitor and judge solution convergence and accuracy
Learning Objectives:
You will be able to choose appropriate solver settings for your CFD
simulation and be able to monitor and judge solution convergence
REE 470: CAD Course – Fluent Tutorials
Tutorial List:
CFD Tutorials
Number Tutorial Name Location Due Date
1 Flow over an Airfoil Link 4/10/2018
2 Flow over an Airfoil at different angle of attack Link 4/10/2018
3 Turbulent Flow past a backward step Tutorial Folder 15/11/2018
4 3D Transonic Flow over a Wing Link 22/11/2018
5 Vertical Axis Wind Turbine (Part 1) – Steady Link 29/11/2018
6 Vertical Axis Wind Turbine (Part 2) – Transient Link 6/12/2018
Meshing Tutorials
Number Tutorial Name Location Due Date
1 Tee Pipe Tutorial Folder 25/10/2018
2 Ventilation System Tutorial Folder 25/10/2018
3 Main Gear Tutorial Folder 8/11/2018
4 Automotive External Body Tutorial Folder 8/11/2018
FEA Tutorials
Number Tutorial Name Location Due Date
1 Truss Tutorial Folder 4/10/2018
2 Beam and Frame Tutorial Folder 11/10/2018
3 Plate Tutorial Folder 11/10/2018
4 Plate with a hole Link 1/11/2018
5 Modal Analysis of fixed-fixed beam Tutorial Folder 1/11/2018
Fluid-Structure Interaction Tutorials
Number Tutorial Name Location Due Date
1 Probe – 1 way Tutorial Folder Bonus
2 Hyperalstic Flap Tutorial Folder Bonus
3 Wind Turbine Blade Fluid-Structure Interaction Link BonusTutorial Report Requirements
– Each student Should submit the tutorials at the posted due dates.
– Late Tutorials will not be graded.
– The student should follow all tutorial instructions.
– The Report should include the following
o Problem Description
o Used Boundary Conditions
o Pressure and Velocity Contours
o Comparing with the provided experimental data if provided.Detailed Description of Tutorials
– CFD Assignments
1. Flow around Airfoil
2. Flow over an Airfoil at different angle of attack
3. Turbulent Flow past a backward step
4. 3D Flow around a transonic Wing
5. Vertical Axis Wind Turbine (Part 1) – Steady
6. Vertical Axis Wind Turbine (Part 2) – Transient – Meshing Assignments
1. Tee pipe
2. Ventilation System
3. Main Gear
4. Automotive External Body – FEA Assignments
1. Truss
2. Beam and Frame
3. Plate
4. Plate with a hole
5. Modal Analysis of fixed-fixed beam – FSI Assignments
1. Probe 1 Way
2. Hyperalstic Flap
3. Wind Turbine Blade Fluid-Structure Interaction
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