Upload
technological-ecosystems-for-enhancing-multiculturality
View
73
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Teresa Parra, Ruben Perez and Francisco Castro. University of Valladolid (Spain)
Citation preview
Workshops for learning in Computational Fluid Mechanics
By M. T. Parra, J. R. Pérez and F. CastroUniversity of Valladolid - EII. Paseo del Cauce 59
47011 Valladolid (Spain)
Mª Teresa Parra [email protected]
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 1
Track 2. Educational Innovation
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 2
The must-do of teaching Computational Fluid Dynamics (CFD) is the practical component.
Computational fluid dynamics is a key design tool in mechanical engineering. Its growth in recent years has been bolstered by the increased calculating power of computers.
The danger lies in using the commercial codes as a kind of black box where information is introduced and output is produced without understanding the basics and being unable to identify the weaknesses.
ExamplesCFD Computational Fluid Dynamics CFD Color-Ful Drawings
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 3
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality –
Salamanca 1-3 october 20144
Learning CFD must be eminently practical.
Comprehension and assimilation of concepts is more easy while students collaborate in workshops.
Dale [4] evidenced in 1969 that the retention capacity was around the 75% when the student have an active role on a practical task.
Proposing workshops as a way of learning by doing. When benchmarks are conveniently scaled-down and parameterized, students improve their understanding of the strong and weak points of the numerical models and gain an insight into the processes learnt different subjects.
AIM
MotivationCurrent scenario for engineering student: • Good scientific knowledge but an obvious disability
to communicate it. • Unaware of the relationship between theory and
industrial applications.• Credulity to results provided by numerical or
experimental tools. • Competitiveness preventing collaboration.• Frightening to make creative decisions.
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 5
Information and Communications Technology (ICT).
Facilitates: • Development of collaborative/competitive
workshops • Objective assessment• Allows current iteration between the learning agents.– Meeting forums – Feedback
• Students work at their own pace and in different locations.
• Access to information 2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 6
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014
7
Final Objectives of Collaborative Workshops
• Understanding the strengths and weaknesses of numerical techniques Develop a critical spirit to identify strong and weak points of
the model. Creativity and self-sufficiency to propose improvements Collaborative work.
• Identification of the fluid-mechanical phenomena Application of multidisciplinary concepts.
• Description of flow patterns: Ability to verbally transmit graphic information Synthesis capacity.
• Optimization of available resources for the project
Selection criteria of workshops• Prerequisites of the
practical workshops
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 8
Simple geometries
Complex flow patterns
Parametric analysis
Available experimental data
Industrial applications
Methodology:
• Follow a tutorial and fill up the corresponding questionnaire • Perform different tasks of the
project and obtain conclusions • Peer evaluation
Outline of tasks to complete a workshop• Fragmentation of the project into
different tasks with different deadlines, increases the success rate.
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 9
Mesh generation
Steps
Algorithm selection
Turbulence treatment
Validation
Description of flow pattern
• Benefits of active learning through workshops:
Creative Work
Numerical Skills
Comprehension of concepts
Critical thought
Transversal Skills
Writing of technical reports
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality –
Salamanca 1-3 october 201410
Offer of workshops Prácticos
Driven Cavities (Lubrication):
Ahmed car (vehicles’ aerodynamics)
Roback & Johnson (swirling burners)
H-Darrieus (wind turbines)
Evaluation System• Peer evaluation (another student and the teacher) • It rewards: – The consistency of decisions – The ability to synthesize – Efficient consume of resources – A critical analysis of the performance of the model (weak
points a suitable solutions)– The appropriate vocabulary in reports – The objective and justifiable assessment of the reviewed
work.
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 11
Survey results
• Regarding the utility of the workshop …
• regarding the perception of the workshop …
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014
12
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
Very agreed
Agreed Slightly agreed
Slightly disagreed
Disagreed Very Disagreed
No opinion
Useful to understand fluid concepts
Useful for other subjects
Basic understanding of CFD
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
Very agreed
Agreed Slightly agreed
Slightly disagreed
Disagreed Very Disagreed
No opinion
Learning practical aspects
I can be self-sufficient
Intention to use the tool in the future
Conclusions• There is an evident increase of the success rate in
a complex subject. • An actual project must be simplified to a teaching
scale• Students:– demand more contents in virtual environments. – appreciate the collaborative activities– apply concepts from other subjects and to sum up, any
work ends up being multidisciplinary.– realize that they know more than their priori
perception.2nd International Conference on Technological Ecosystems for
Enhancing Multiculturality – Salamanca 1-3 october 201413
Acknowledgments
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 14
Support Actions to Educational Innovation from the University of Valladolid.
Ref. PID/2011/78: Methodology to Teach Computational Fluid Mechanics in Mechanical Engineering courses.
Ref. PID/2013/7 and PID/2014/30: Development of an OWC
about Computational Fluid Mechanics
Thank you for your attention.
2nd International Conference on Technological Ecosystems for Enhancing Multiculturality – Salamanca 1-3 october 2014 15