Project

How is turbulence affected by accelerations

Publisher

Supervisor

Location

Greater Copenhagen area

Background:

Turbulence is the most important unsolved problem of classical physics. The Kolmogorov theory of turbulence, which is the basis for our current understanding, is based on an analogy between small and intermediate turbulent scales and molecules in a gas at a thermodynamic equilibrium. But even molecules can be pushed out of equilibrium, and turbulent eddies are significantly larger and more energetic!

Recent research is indicating that the Kolmogorov theory of turbulence is only valid when the flow is at a state of equilibrium, i.e., no significant temporal or spatial accelerations. 

Proposed projects

The project is practical research oriented, but has immediate application for turbulence theory and in particular turbulence modeling, which is widely used in industry.

The project can be conducted by 1-2 BSc or MSc students.

Lased Doppler anemometry or Hot-wire measurements will be conducted in a windtunnel within contractions of various aspect ratios. We will study how the accelerations caused by the contractions affect the turbulence in terms of energy spectra and other standard analysis. By investigating how the energy cascade develops (possibly different from the classical Richardson cascade), we expect to be able to draw conclusions about the range of validity of the Kolmogorov theory of turbulence.

This project is a pre-study to a major research grant, sponsored by the European Research Council. The study will provide important information for the further design of the experiments within the project.

The results will be immediately applicable to improving turbulence models as well as theory. From this project, you will gain a unique in-depth understanding of the physics of turbulence which will be of great value in virtually any industrial or academic discipline of fluid mechanics.

In collaboration with

Intarsia optics

Download Materials

Search in postings
Contact

Company / Organization

DTU Mekanik

Name

Clara Marika Velte

Position

Lektor

Mail

cmve@dtu.dk

Supervisor info

BSc in Physics and Nanotechnology

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

BSc in Earth and Space Physics and Engineering

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

BSc in Mathematics and Technology

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

BSc in Mechanical Engineering

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

MSc Eng in Applied Chemistry

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

MSc in Physics and Nanotechnology

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

Msc in Earth and Space Physics and Engineering

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

MSc in Engineering, Mechanical Engineering

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

MSc in Wind Energy

Supervisor

Clara Marika Velte

ECTS credits

15 - 40

Type

BSc project, MSc thesis, Special course

Must be completed

41312, preferably also 41322 and/or 41129

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

Find us here

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

All vacant positions
 

loading..