Research
List of publications [pdf] [html] | CV | Licentiate Thesis | Ph. D. Thesis
My research area, shock wave focusing, is perfect for generating beautiful and interesting images. Some of them are shown in below. Enjoy!
Pictures from Experiments
8 cylinders, 15 mm in diameter are used to perturb a cylindrical converging shock wave. The shape of the shock wave will alternate between an octagon (8 corners) and a double octagon during the focusing process.
With a barrier of cylinders we tried to perturb the shock from one side only. The results show that the center of the converging shock the shock wave is moved slightly towards the side where the obstacles are. However, the shape of the shock is more influenced and deviates clearly from the original cylindrical shape.
One cylindrical obstacle perturbs an originally cylindrical shock wave.
Simulations made wih Overture
One cylindrical obstacle perturbs an originally cylindrical shock wave.
Watch a movie here!
Tips: Download the movie and play it on your computer if the network is slow.
Eight cylindrical obstacles perturb an originally cylindrical shock wave.
Watch a movie here!
Tips: Download the movie and play it on your computer if the network is slow.
Three cylindrical obstacles perturb an originally cylindrical shock wave.
Watch a movie here!
Tips: Download the movie and play it on your computer if the network is slow.
Information
The gallery uses CSS and is based on a gallery made by Nathan. The css and java script effects are free and called Lightbox JS.
Overture
I am using a code called Overture
to do numerical simulations of converging shock waves of different shapes.
- Overture is a numerical software that solves partial differential
equations on overlapping grids.
- Adaptive mesh refinement.
- Finite-difference operators: conservative and non-conservative,
2nd, 4th, 6th and 8th order accurate approximations.
- OverBlown is a solver for Navier-Stokes (both compressible
and incompressible) and Euler equations.
Licentiate thesis
Download my licentiate thesis:
On focusing of strong shock waves.
Doctoral thesis
Download my doctoral thesis:
On focusing of shock waves.