@@ -13,21 +13,35 @@ Meeting (Tomislav, Hassan and Shumali (C07N)
* Droplet 2D contour at all time steps during sliding.
2. Status at B01:
* Simulation test case has been setup.
* Post-processing has been set up.
**TODO**
* Comparison with the experiment (Jupyter notebook).
3. Challenges at B01:
* Initialization of the 3D droplet that is already sliding (as this is the starting position provided).
* Initialization of the 3D droplet that is already sliding (as this is the starting position provided) requires 3D surface scan from the experiment which is not available. In addition to the 3D surface shape, initial pressure and velocity fields would be not-trivial and unknown as well.
* Errors in initialization (errors in the volume fraction) lead to volume fractions with small oscillations, we compute curvature (second derivative) from such erroneous volume fraction field and, our simulations may crash.
4. Future steps discussed:
- [ ] The initial position would now be the droplet that is dropped from the needle but has not touched the substrate yet, i.e. the falling droplet. Shumaly will provide the droplet data (velocity, position and contour) before it hits the substrate i.e. before sliding.
- [ ] The initial position would now be the droplet that is dropped from the needle but has not touched the substrate yet, i.e. the falling droplet in a near vicinity of the wall. Shumaly will provide the droplet data (velocity, position and contour) before it hits the substrate i.e. before sliding, Hassan will set up the 2D impacting case. **Priority 1**
- [ ] Shumaly will have two experimental setups:
* Droplet sliding without the obstacle
* Droplet sliding with the obstacle
- [ ] Hassan will setup the 2D sliding droplet
**Optional steps that must be discussed first - even if we get the shape right, we will be missing it's velocity and pressure, and the droplet caterpillars (expands and contracts) as it slides down after impact which means the impact has an effect on the sliding.**
- [ ] Hassan will look into surface evolver software for initialization of the non-symmetrical droplet.
- [ ] As we get the updated case result's data, and the initialization can be done, we can start 3D simulation for sliding droplet.
