Skip to content

Latest commit

 

History

History

CoSimIO_Kratos_SimulationDataExchange

README.md

Simulation Data Exchange with Kratos using CoSimIO

This example demonstrates how to set up a simulation where Kratos Multiphysics exports velocity data using CoSimIO, and another script receives and processes this data.

Prerequisites

Ensure that CoSimIO and KratosMultiphysics are installed and set up correctly:

Flow Past a Cylinder Flow Simulation

This 2D CFD simulation explores the flow past a cylinder benchmark using Kratos. The case involves a cylinder placed in a channel with an inlet velocity and no-slip conditions on the walls. The simulation captures the development of a Von Karman vortex street downstream.

For more details, refer to the Kratos Example.

Files Included

The case files are included in this repository under KratosCase/FlowPastACylinder.

Flow Past a Cylinder

Note

The geometry was adapted so that the outlet of the OpenFOAM case directly connects to the inlet of the Kratos simulation, enabling seamless coupling between the two solvers.

Instructions

  1. Run the Kratos Export Script Open a command window and run:
python3 export_velocity_from_kratos.py

This script initializes the CoSimIO connection, sets up the simulation, and exports velocity data at each solution step.

  1. Run the Data Import Script In another command window, run:
python3 import_velocity_from_kratos.py

This script connects to the Kratos exporter, waits for the data at each time step, processes it, and prints the imported velocities.

Key Operations in the Scripts

Export Script (export_velocity_from_kratos.py):

  • Connects to the receiver using CoSimIO.
  • After each solution step, it gathers velocity data and exports it using CoSimIO.
  • Waits for acknowledgment from the receiver before proceeding.

Import Script (import_velocity_from_kratos.py):

  • Connects to the Kratos exporter.
  • Imports velocity data for each time step and acknowledges the receipt of data.
  • Processes and prints the received data.

This will allow you to see the data exchange in action, with the import script receiving and processing the velocity data exported by Kratos.