Dear researchers,

I am modeling the process of the water droplet impacting on the wall with a constant contact angle. The specific calculation parameters are as follows:

The droplet diameter is 1.97mm, the impact velocity is 0.96m/s, the calculation area is 2D axisymmetric area, the calculation area size is 6mm*6mm , the grid size is 10 μ m*10μm, all the residuals are 1e-6, and the time step is 1e-8s.

The calculated results are not the same as the experimental results, which shows that the movement of water drops in the numerical calculation is faster than that in the experiment. In other words, the numerical spreading diameter is twice as large as the experimental results at the same time.

Can someone help me solve this problem?

The reference of this calculation example is 《Droplet breakup and rebound during impact on small cylindrical superhydrophobic targets》

Best,

Yongkui Wang

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