3 Setting Up Units & Standards in SolidWorks, 2D Sketching and 3D Sketching in SolidWorks
In this video What is CAE, Basic concept of Computer Aided Engineering (CAE) and general working of Finite Element Analysis (FEA), Advantages of Finite Element Analysis (FEA), Limitations Finite Element Analysis (FEA), Types of Analysis in Computer Aided Engineering, Important terms Finite Element Analysis (FEA), definitions in Finite Element Analysis (FEA)
Degree of freedom, Element Shape, 1D element, 2D elements, 3D elements, Types of material, Introduction to Ansys Workbench, Ansys workbench features, Sketch in Ansys workbench, Units in ansys workbench, Sketching and part modeling in design feature, Creating solid models, Placed features and Assembly, Modeling technique, Impact other cad Systems, Creation of surface models and line models etc
Launch ANSYS Workbench.
Create a Fluent fluid flow analysis system in ANSYS Workbench.
Create the elbow geometry using ANSYS Design Modeler.
Create the computational mesh for the geometry using ANSYS Meshing.
Set up the CFD simulation in ANSYS Fluent, which includes:
Setting material properties and boundary conditions for a turbulent forced-convection problem.
Initiating the calculation with residual plotting.
Calculating a solution using the pressure-based solver.
Examining the flow and temperature fields using ANSYS Fluent and CFD-Post.
Create a copy of the original Fluent fluid flow analysis system in ANSYS Workbench.
Change the geometry in ANSYS Design Modeler, using the duplicated system.
Regenerate the computational mesh.
Recalculate a solution in ANSYS Fluent.
Compare the results of the two calculations in CFD-Post
ANSYS Fluent
ANSYS Fluent is the state of the art computer program for modeling fluid flow, heat transfer, and chemical reactions in complex geometries.
ANSYS FLUENT provides complete mesh flexibility, including the ability to solve your flow problems using unstructured meshes that can be generated about complex geometries with relative ease.
Supported mesh types include 2D triangular/quadrilateral, 3D tetrahedral/hexahedral/pyramid/wedge/polyhedral, and mixed (hybrid) meshes.
CFD Methodology
CFD can be used to determine the performance of a component at design stage, or it can be used to analyze difficulties with using an existing component and leads to its improved design.
The process of performing CFD simulation is split into four stages:
Creating the geometry/mesh
Defining the physics of the model
Solving the CFD problem
Visualizing the results
Planning CFD analysis with FLUENT
Define the modelling goals.
Create the model geometry and mesh.
Set up the solver and physical models.
Compute and monitor the solution.
Examine and save the results.
Planning CFD analysis with
FLUENT
Revise the model
Define the modeling goals
What results are you looking for, and how will they be used?
What are your modelling options?
What physical models will need to be included in your analysis?
What simplifying assumptions do you have to make?
What degree of accuracy is required?
How quickly do you need the results?
Set up the solver and physical models
Define material properties
Fluid
models
Solid
Mixture
Compute and monitor the solution
Prescribe operating conditions.
Prescribe boundary conditions at all boundary zones.
Provide an initial solution.
Set up solver controls.
Set up convergence monitors.
Initialize the flow field.
Compute and monitor the solution
Number of iterations are usually required to reach a converged solution. I
Convergence is reached when:
Changes in solution variables from one iteration to the next are negligible.
Residuals provide a mechanism to help monitor this trend
The accuracy of a converged solution is dependent upon:
Appropriateness and accuracy of physical models. Mesh resolution and independence.
Exalumen and save the results
Problem setup.
Examine and save the results
Visualization tools can be used to answer such questions I
What is the overall flow pattern?
Is there separation?
Where do shocks, shear layers, and so on form? Numerical reporting tools can be used to calculate the following quantitative results:
Forces and moments
Average heat transfer coefficients
Surface and volume integrated quantities
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