SPlisHSPlasH

In this guide, we will walk you through setting up and running SPlisHSPlasH, a Smoothed-Particle Hydrodynamics (SPH) simulator available via the Inductiva API.

We will cover:

  • Configuring SPlisHSPlasH simulations using the Inductiva API.

  • Example code to help you get started with simulations.

  • Available benchmarks to test SPlisHSPlasH’s performance.

SPlisHSPlasH#

SPlisHSPlasH is a Smoothed-Particle Hydrodynamics (SPH) simulator that is widely used for simulating fluid dynamics across a variety of applications. Simulations are typically configured using a single .json file, which defines the geometry, fluid properties, boundary conditions, numerical parameters, and output settings. Additional geometry files may also be required in some cases.

Example Code#

Below is an example of running a simple SPlisHSPlasH simulation via the Inductiva API:

"""SPlisHSPlasH example."""
import inductiva

# Instantiate machine group
machine_group = inductiva.resources.MachineGroup("c2-standard-4")
machine_group.start()

input_dir = inductiva.utils.download_from_url(
    "https://storage.googleapis.com/inductiva-api-demo-files/"
    "splishsplash-input-example.zip",
    unzip=True)

# Set simulation input directory
splishsplash = inductiva.simulators.SplishSplash()

task = splishsplash.run(input_dir=input_dir,
                        sim_config_filename="config.json",
                        on=machine_group)

task.wait()
task.download_outputs()

machine_group.terminate()

Available Benchmarks for SPlisHSPlasH#

The following benchmarks are available to test SPlisHSPlasH’s performance:

  • Fluid Cube S: This benchmark replicates the example in this tutorial, using the deafult values.

  • Fluid Cube L: This benchmark mirrors the benchmark Fluid Cube S in all aspects except for the particle radius, which has been decreased to 0.0045 and the fluid model, that was doubled in all axis.

  • Fluid Cube M: This benchmark mirrors the Fluid Cube S benchmark in all aspects except for the particle radius, which has been decreased to 0.0045.