# Water geometry size Answered

Hii
I would like to know that, how to fix the size of water geometry for under water applications in 2D axis symmetry in OnScale lab in designer mode.

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Hii
I would like to know that, how to fix the size of water geometry for under water applications in 2D axis symmetry in OnScale lab in designer mode.

## 5 comments

Tapiwa MutasaPlease see this article here.

SnehaThank you for your response. Actually i would like to know that how to evaluate the size of water geometry in OnScale. If i simulate a model with Frequency 100kHz for under water applications, how can i evaluate water domain size based on my simulation Frequency. Normally i am chosen it as 1 lambda. But using this size some times i didn't get proper simulation results.

Tapiwa MutasaI am not sure I understand what you mean. Usually, one would define the load volume in which they intend to observe physical response to loads when they run their simulations. OnScale is a time domain solver and the simulations are essentially a virtual experiment. You set up your simulation and observe the outcome from predefined loads and boundary conditions. Frequency of its own in not a simulation input.

I do not understand what you mean by "domain size based on simulation frequency". Can you please give some context on this?

Snehaexample,under water device applications, if my device is working with simulation Frequency 200 kHz, and the device is all surrounded by water, how can i fix the size of water around it.

Tapiwa MutasaThanks for clarifying. You can do this by defining a geometry with the size you want and assign material properties of water to this volume. To define geometry, you can use primitives as described in the previous article. Here is a video example.

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