CFD Analysis Concept
Issue Date: 30h Oct 2015.
Hand-in Date: 13
th Nov 2015 (23:59pm).
? 3000 words (Technical Report)>> check 4 pdf reports examples.
? Use 2 Software for this assignment to get the results (SolidWorks + Star CMM+)
? Check the next pages for the report structure and requirements.
? Add references, quotations and citations from books and journal papers.
You are asked to model, deep research and analyse flow characteristics around a
given simple object with Star CMM+ using variation conditions.
Each object could be created on the SolidWorks and Imported to Star CMM+ or
alternatively it can be created directly in the Star CMM+.
Your model is Rectangle
? Fluid assumes water at 20 oC
? with a dynamic viscosity of 1.0 x 10 -3 Pa·s
? and density 1000 kg/m3
? The velocity is V= 0.01m/s
After conducting two-dimensional flow simulation at two free stream velocities, you
need to examine flow pattern and aerodynamic performance at the same velocity for
different shaped objects and to investigate the velocity effect for each object.
You will be expected to read journal papers and books related to the subject above.
You are also expected to conduct the mesh independent test. This should be shown
clearly on your report.
The BOLD shows where the word counting would be.
1. The (Abstract/Summary) section must be miniature and condensed technical
2. The Introduction section should focus on relevant background information,
relevant literatures and real-life applications to highlight current stage,
challenge and importance of this topic:
– What is problem?
– Why it is important?
– What work has been done by others (relevant/logic organisation)?
– Aim and objectives.
3. The Method section should present how to select the physical models,
computational domain, meshing details and boundary conditions. It should
include the theory/formulae/any hand-calculation if appropriate. It should
cover all necessary information which enables other people to reproduce your
work if they are interested in:
– Direct method applies to your specific problem.
– B.C, Assumption=< justification
– Parameters List.
Example for the report layout: (please note this is ONLY an example)
4. The Results section should detail the numerical simulation results. You need
to conduct mesh independence test and validation before presentation of your
simulation results. You need to use Geometric displayer, scalar displayer,
vector displayer and streamline displayer to show your results. It is essential
to use fluid mechanics concept and principles correctly to explain the results.
– “y” plot value range will be (30-500), refine the wall mesh if the results not
within the required range.
– Explain turbulence results.
– Validate your results.
– Include your results images:
o (HINTS: DON’T INCLUDE IMAGES ONLY, YOU ALSO NEED
TEXT DESCRIPTION/EXPLANATION; DON’T USE STAR CCM+
SECENE TO ORGANISE RESULTS)
o AVOID screen shoot.
5. The Discussion section should demonstrate your critical analysis about the
CFD technique, fluid mechanical principles, cross comparison with published
data, and its implication for applications. You may investigate the effect of some
certain factors in variation analysis.
Also comments on:
– Accuracy of results.
– Mesh Independent Test.
– Choice of RANS model.
– Cross-link discussion (Reynold number).
6. The Conclusion section should briefly summarise what you have obtained
from this simulation exercise.
Marking allocation and criteria
1). Correct format (20%)
The whole report should be logically structured and follows format of a full
engineering report. Correct citation of reference and proper numbering of equations
and figures. Interesting background information and updated literature survey.
2). Method (20 %)
Correct computational fluid dynamics (CFD) terminology should be used to introduce
CFD method correctly. Appropriate boundary condition is selected. Meshing scheme
is explicitly explained.
3). Results (30%)
Mesh independence test is presented. Logic organisation of results. Reasonable
usage of geometric, scalar, vector and streamline scenes in Star CCM+. Quality
images with necessary annotation. Correct application of fluid mechanics to interpret
the simulation results. Comparison with hand-calculation if appropriate.
4). Critical Discussion and Conclusion (30%)
It provides critical evaluation of fluid mechanics concept and critical analysis of fluid
mechanical principle. Conducts cross comparison with published data by citing
correct references. Explore the reason for obtained results and show the logic
behind the reasoning.
Module lecture and support notes.
? Computational fluid dynamics : the basics with applications by Anderson,
? Computational fluid dynamics : an introduction for engineers by Abbott, M. B.
(Michael Barry), 1931-; Basco, D. R
? Hirsch, C. (2007) Numerical Computation of Internal and External Flows,
Volume 1: The Fundamentals of Computational Fluid Dynamics: Vol 1. A
Butterworth-Heinemann Title (
? Jiyuan, T. (2007) Computational Fluid Dynamics: A Practical Approach.
? Versteeq, H & Malalasekra, W. (2007) An Introduction to Computational Fluid
Dynamics: The Finite Volume Method. Prentice Hall
? Andersson, B., (2011) Computational Fluid Dynamics for Engineers,
Cambridge University Press
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