In this example, the application of PyWorkbench, a Python client scripting tool for Ansys Workbench, is demonstrated in a use case for Ansys Fluent Workflow. The Ansys Fluent TUI (Text User Interface) journal files are utilized to set up and solve the simulation. For meshing Ansys Fluent Meshing WTM (Water Tight Meshing Workflow)is employed through recorded journaling capabilites of Ansys Fluent. As aware, Workbench offers the ability to record actions performed in the user interface, also known as journaling. These recorded actions are saved as Python scripts, which allow for extending functionality, automating repetitive analyses, and running analyses in batch mode. This example demonstrates how to use such a journal file with PyWorkbench for Ansys Fluent Workflow.
This example sets up and solves a three-dimensional turbulent fluid flow and heat transfer problem in a mixing elbow, which is common in piping systems in power plants and process industries. Predicting the flow field and temperature field in the area of the mixing region is important to designing the junction properly.
A cold fluid at 20 deg C flows into the pipe through a large inlet. It then mixes with a warmer fluid at 40 deg C that enters through a smaller inlet located at the elbow. The pipe dimensions are in inches, and the fluid properties and boundary conditions are given in SI units. Because the Reynolds number for the flow at the larger inlet is 50,800 , a turbulent flow model is required.
This use case that demonstrates following PyWorkbench API capabilities such as: - Initiating the Ansys Workbench server locally and establishing a connection with a local client. - Uploading the required input data from client working directory to server working directory. - Executing the Ansys Workbench journal (.wbjn) script on the server, which will execute the Fluent simulation using setup.jou and solve.jou TUI scripts. refer assets for simulation input data. - Downloading the results from the server to client. - Shutting down the server.
Performing essential imports for Ansys Workbench, pathlib to handle filesystems path.