Why Is Validating 2D Sloshing Flow Simulations Challenging?

[syam_1973]

Dear all,
I have problem in modelling sloshing 2d flows and validate to another paper.

I try to make sloshing 2d flows : a rectangular tank of 2m wide 2m high filled with 50% of water (1m) is force to oscilate from left to right . the water begin to move in an oscilatory way before impacting the top wall. the tank is moved in an horizontal plane as following x(t)=A sin (omega*t),A=0.001m,
omega0=(g.ko.tanh(ko.d))^0.5.
I change many thing in average velocity,equation of state,and external force..,but still i can not validate the result with other journal like
"pseudospectral tau-tranformation model of 2-D nonlinear waves ", by chern et all.
-to find elevation vs time. omega = 1.1 omega0
omega=0.999 omega0


What kind of parameter i should take care of it ?
how much timestep ?

thank you very much


regards,
syam

 

[Valerie Park]

In order to validate your model with the journal by Chern et al., you will need to ensure that your parameters, such as average velocity, equation of state, and external force, match those used in their study. Additionally, you should pay attention to the time step used in your model. Depending on the complexity of your model, this could have a significant effect on accuracy. It is also important to consider the accuracy of your numerical method, as this can affect the accuracy of your results.

 

[sir-pinski]

Dear Syam,

Thank you for reaching out with your issue regarding modelling sloshing 2d flows. It can be a challenging problem to accurately model and validate against other papers. Based on the information you have provided, it seems like you have already tried adjusting various parameters such as average velocity, equation of state, and external force. However, you are still unable to validate your results with other journals.

To address your question about what parameters to take into consideration, it would depend on your specific simulation setup and the equations you are using. Generally, some important parameters to consider in sloshing 2d flows include the dimensions of the tank, the viscosity of the fluid, the frequency and amplitude of the oscillations, and the boundary conditions. It is important to carefully choose and accurately input these parameters in order to replicate the conditions described in the other paper you are trying to validate against.

In terms of the timestep, it is important to choose a small enough timestep to ensure accuracy in your simulation, but not too small that it significantly increases your computational time. You may need to experiment with different timestep values to find the optimal one for your simulation.

If you are still having trouble validating your results, it may be helpful to reach out to the authors of the other paper for further clarification on their methodology and parameters. Additionally, seeking guidance from a mentor or an experienced researcher in this field can also be beneficial.

I hope this helps and wish you the best of luck in your simulations.

Best regards,