MAT8104 Advanced Low-Dimensional Modelling of Multiscale Complex Systems

SubjectCat-nbrClassTermModeDescriptionUnitsCampus
MAT8104751681, 2008ONCAdvanced Low-Dimensional Modelling of Multiscale Complex Systems1.00Toowoomba

Academic group:FOSCI
Academic org:FOS003
Student contribution band:2
ASCED code:010101


Contents



STAFFING





REQUISITES

Pre-requisite: MAT2100 and MAT3103 and MAT8102



OTHER REQUISITES

Recommended prior studies: MAT3104, MAT3105 and MAT3106



RATIONALE

Most physical situations and complex systems of interest in the world around us have an enormous number of fine details which are of little concern in many situations. The practical equations which scientists deal with are simplifications of the "true" but intractable or overly-complicated equations that describe all the fine detail. Just one example is the derivation of a numerical model for simulation. The process of creating simple model approximations for otherwise intractably detailed dynamical descriptions, sometimes called dimensional reduction, is addressed in this Course.




SYNOPSIS

This course flexibly combines aspects of modern dynamical systems theory with numerical techniques, fluid dynamics and other application areas. We develop how to derive relatively simple dynamical models in the application of the techniques to important classes of applications. The principles of the modelling process that are developed apply universally to any evolving system. The triple aim is to explore: algebraic techniques; general modelling principles; and application areas. This course is normally offered only in even years. Contact the Examiner to study this course by distance education.




OBJECTIVES

On completion of this course students will be able to:

  1. discuss how separation of time scales forms a basis of modelling (Assignments 1 - 4);
  2. construct slow and manifold models of dynamics with the aid of computer algebra (Assignments 1 - 4);
  3. explore bifurcation scenarios (Assignments 1 - 4);
  4. use normal forms to understand modelling transformations (Assignments 1 - 4);
  5. understand large spatial scale, slowly varying approximations (Assignments 1 - 4);
  6. use the techniques in applications such as fluid flows, beam and shell theory, population dynamics, queueing theory, stochastic systems, and numerical discretisations (Assignments 1 - 4).



TOPICS


DescriptionWeighting (%)
1. Mathematical modelling topics to be negotiated with examiner but should include some of:
1.1. a rational theory of modelling is exponential collapse; centre manifold theory ensures fidelity; existence, relevance and approximation; computer algebra handles the details; slow space variations---dispersion in a channel; structural stability; lubrication models of thin fluid films; cross-sectional averaging is unsound; inertial dynamics in thin fluid films; bands of critical modes---convection; competing small effects should be independent; the slow manifold is central, beam models, quasi-geostrophic approximation; initial conditions are long-lasting; normal forms show the way; enforcing some surprises; stochastic dynamical systems possess noise induced drift; two layer ocean dynamics; slice domains into finite elements; high order consistent approximations; maintain accuracy with moving meshes; boundary conditions are straightforward; multi-dimensional discretisations; initial conditions are subtle; two-scale modelling and the Ginzburg--Landau equation; the same paradigm serves numerical and analytic models.
100.00


TEXT and MATERIALS required to be PURCHASED or accessed

ALL textbooks and materials are available for purchase from USQ BOOKSHOP (unless otherwise stated). Orders may be placed via secure internet, free fax 1800642453, phone 07 46312742 (within Australia), or mail. Overseas students should fax +61 7 46311743, or phone +61 7 46312742. For costs, further details, and internet ordering, use the 'Textbook Search' facility at http://bookshop.usq.edu.au click 'Semester', then enter your 'Course Code' (no spaces).

(Available: http://www.sci.usq.edu.au/courses/mat8104).

Computer facilities for computer algebra and numerics.

Roberts, A J (Available: http://www.sci.usq.edu.au/staff/aroberts/Modelling).




REFERENCE MATERIALS

Reference materials are materials that, if accessed by students, may improve their knowledge and understanding of the material in the course and enrich their learning experience.

Other research books and articles as advised depending upon chosen topics.

Kuznetsov, Y A 1995, Elements of Applied Bifurcation Theory, Applied Mathematical Sciences, 2nd edn, Springer-Varlag, electronic book available through Ebrary catalogue, vol 112.

Murdock, J 2003, Normal forms and unfoldings for local dynamical systems, Springer.

Robert, A J 2005, (Available: http://www.sci.usq.edu.au/staff/aroberts/LaTeX/latexintro.html).

Roberts, A J 2003, Low-Dimensional Modelling of Dynamical Systems Applied to Some Dissipative Fluid Mechanics, Nonlinear dynamics: from lasers to butterflies, Ball, R and Akhmediev, N, World Scientific Lecture Notes in Complex Systems, vol 1, pp257-313.

Roberts, A J 2001, Holistic discretisation illuminates & enhances the numerical modelling of differential equations, Topics in Applied and Theoretical Mathematics and Computer Science, Kluev, V V and Mastorakis, N E, WSES Press, pp81-89.




STUDENT WORKLOAD REQUIREMENTS

ACTIVITYHOURS
Assessment40.00
Consultation7.00
Directed Study120.00



ASSESSMENT DETAILS

DescriptionMarks out ofWtg(%)Due dateNotes
ASSSIGNMENT 125.0025.0019 Jul 2008(see note 1)
ASSIGNMENT 225.0025.0019 Jul 2008 
ASSIGNMENT 325.0025.0019 Jul 2008 
ASSIGNMENT 425.0025.0019 Jul 2008 
NOTES
1.
Due date for assignments 1 - 4 to be advised.


IMPORTANT ASSESSMENT INFORMATION

  1. Attendance requirements:
    It is the students' responsibility to attend and participate appropriately in all activities (such as lectures, tutorials, laboratories and practical work) scheduled for them, and to study all material provided to them or required to be accessed by them to maximise their chance of meeting the objectives of the course and to be informed of course-related activities and administration.
  2. Requirements for students to complete each assessment item satisfactorily:
    To complete each of the assessment items satisfactorily, students must obtain at least 50% of the marks available for each assessment item.
  3. Penalties for late submission of required work:
    If students submit assignments after the due date without (prior) approval of the examiner then a penalty of 5% of the total marks gained by the student for the assignment may apply for each working day late up to ten working days at which time a mark of zero may be recorded.
  4. Requirements for student to be awarded a passing grade in the course:
    To be assured of receiving a passing grade a student must achieve at least 50% of the total weighted marks available for the course.
  5. Method used to combine assessment results to attain final grade:
    The final grades for students will be assigned on the basis of the aggregate of the weighted marks/grades obtained for each of the summative assessment items in the course.
  6. Examination information:
    There is no examination in this course.
  7. Examination period when Deferred/Supplementary examinations will be held:
    There will be no Deferred or Supplementary examinations in this course.
  8. University Regulations:
    Students should read USQ Regulations 5.1 Definitions, 5.6 Assessment, and 5.10 Academic Misconduct for further information and to avoid actions which might contravene University Regulations. These regulations can be found at http://www.usq.edu.au/corporateservices/calendar/part5.htm or in the current USQ Handbook.

ASSESSMENT NOTES

9.The due date for an assignment is the date by which a student must despatch the assignment to the USQ. The onus is on the student to provide proof of the despatch date, if requested by the Examiner.
10.Students may be required to provide a copy of assignments submitted for assessment purposes. Such copies should be dispatched to the USQ within 24 hours of receipt of a request to do so.

This version produced 24 Nov 2008.