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Förslaget inkom 2005-02-07

An experimental water-modeling study of the inlet nozzle jet design in a continous strip caster (gh)

OBS! ANSÖKNINGSTIDEN FÖR DETTA EXJOBB HAR LÖPT UT.
1. General description


Experiments is conducted using a transparent plastic water model with a 1:1 scale of mould and tundish of the system aiming to investigate the effects of the design variable of the inlet nozzle jets and operating parameter in adjusting the tundish/ nozzles at very high temperature on the flow pattern.

In order to simulate the solidification front and gain a better understanding of the fluid flow in the liquid zone during the solidification process, a V-shaped transparent plastic perforated wall with lots of very small suction holes with smooth curved edges will be inserted inside the water model. Also by mixing reflecting copper-coloured fine pigments, IRIODIN 5221, into the flow, we will try to visualise the water flow in the experimental set-up.


2. Target

The model will ultimately be applied to predict and understand the effects of different design variables on the fluid flow in the mould.

4. Objective and part gols

The objective can be divided in the following part goals:
- Investigation of the effect of the adjustment in height of the tundish on the flow pattern;
- Investigation of the effect of the position misplacement of the tundish on the flow pattern;
- Investigation of the effect of the expansion of the tundish at the casting temperature on the flow pattern;
- Investigation of the effect of liquid level in the tundish at the casting temperature on the flow pattern;
- Investigation of the effect of the misalignment of the inlet nozzle jets on the flow pattern;
- Investigation of the effect of the dimension of the inlet nozzle jet on the flow pattern
- Investigation of the effect of the plug in of the inlet nozzle jet(s) on the flow pattern
- Investigation of formation of the air/gas bubbles;
- Trying to measure the fluid/particle velocity in the liquid part of the water-model (*)
- Investigation of the effect of number of the inlet nozzle jets tundish on the flow pattern;
- Investigation of the effect of casting speed/inlet velocity on the flow pattern;


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