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Institutionernas kurser för doktorander

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Kursplan för

Läsår
MMA160 - Computational hydrodynamics and optimisation
 
Kursplanen fastställd 2010-02-24 av programansvarig (eller motsvarande)
Ägare: MPNAV
7,5 Poäng
Betygskala: TH - Fem, Fyra, Tre, Underkänt
Utbildningsnivå: Avancerad nivå
Huvudområde: Maskinteknik, Sjöfartsteknik
Institution: 48 - SJÖFART OCH MARIN TEKNIK


Undervisningsspråk: Engelska
Minsta antal deltagare: 8
Max antal deltagare: 50

Modul   Poängfördelning   Tentamensdatum
Lp1 Lp2 Lp3 Lp4 Sommarkurs
0102 Tentamen 7,5hp Betygskala: TH   7,5hp   Kontakta examinator,  Kontakta examinator

I program

MPNAV NAVAL ARCHITECTURE, MSC PROGR, Årskurs 1 

Examinator:

Professor  Rickard Bensow



Behörighet:

För kurser inom Chalmers utbildningsprogram gäller samma behörighetskrav som till de(t) program kursen ingår i.

Kursspecifika förkunskaper

Mathematics(including mathematical statistics, numerical analysis and
multi-variable calculus), Mechanics and strength of material and, Fluid
mechanics. Additional course requirements: MMA136 - Ship geometry and
hydrostatics and MMA155 - Ship resistance and propulsion.

Syfte

The aim of this course is to make the course participants familiar with the usage of and theory behind modern software used in ship design. The use of CFD is increasing in engineering design due to a need for shorter development times, faster computers and more user friendly software. However, the choice of computational methods and grids are not as easy as the GUI of the software, so in connection with this there is an increasing problem with engineers who can not correctly perform the simulations and interpret the results. This course aims at bridging this gap by letting the participants perform CFD simulations using different techniques and analyze and reflect on the results of the calculations.

Lärandemål (efter fullgjord kurs ska studenten kunna)

use SHIPFLOW and Fluent, two modern commercial software for CFD predictions


identify difficulties in computing good quality CFD solutions


judge and improve the quality and usefulness of the obtained solution


discuss the basic theory behind CFD softwares using the right terminology


read and discuss scientific literature in the subject


use the parametric CAD software FRIENDSHIP to modify an existing ship hull


discuss basic optimization theory using the right terminology

Innehåll

The course deals with three areas: A) potential flow computations, B) viscous flow computations and C) automatic shape optimisation. The first part of the course introduces potential-flow theory and its extension to three-dimensional panel (BEM) methods with and without a free-surface. Computation of lift and induced drag using potential-flow theory is also included. The potential-flow part of the SHIPFLOW software is introduced and the parametric CAD program FRIENDSHIP is used to modify an existing hull and to generate the geometry description used by SHIPFLOW. Methods for viscous flow computations are introduced in the second part of the course. Special emphasis is on discretisation and numerical solution of viscous flows. The focus is also on mathematical modelling including turbulence models. The CFD software Fluent is introduced and is used to compute the viscous flow Mesh dependency is discussed both for potential-flow and viscous flow computations. Automatic shape optimisation is studied in the third part of the course. Basic optimisation theory is studied for gradient based and genetic optimisation methods. An optimisation environment which includes a parametric CAD model of a ship, a CFD software and an optimisation software is used to optimise an existing hull from a resistance point of view.

Organisation

Teaching is in the form of lectures, tutorials and six mandatory computer assignments.

Litteratur

See the course home page.

Examination

Approved reports on the computer assignments. Write a report on theoretical issues from the three parts of the course. Present the theoretical report at a seminar and act as opponent for the other presentations. See the course home page for details


Publicerad: må 13 jul 2020.