# Boundary conditions of an experimental test bench to numerically investigate flame wall interactions using CFD

## Description

The data provides boundary conditions to numerically investigate the flame wall interactions of an experimental test bench at the Bundeswehr University of Munich. To fully describe the boundary conditions three data sets are available. The first data set contains the mainflow boundary conditions of the test section upstream of the fuel injectors. The velocity and RMS-velocity fields are provided. The Large-Eddy-Simulations (LES) capability of ANSYS Fluent was used to create this dataset. The second data set describes the exit boundary conditions of the fuel injector into the test section at a momentum ratio of I = 10. Methane was used as fuel. LES by using the open source package OpenFOAM were applied for the data creation. The third data set describes the temperature distribution at the test section's wall. The data was derived from signals of wall-embedded thermocouples by using MATLAB and COMSOL and by running the inverse heat conduction method.

## Files

## Steps to reproduce

The first dataset was created by using ANSYS Fluent. Large-Eddy-Simulations (LES) were performed of the whole burner to create this data. After 4 through flow times to remove the initial RANS solution statistics are taken for 12 flow through times. Afterwards the data is extracted from a 2D plane upstream of the fuel injectors in the test section. For the second dataset an LES was performed by using OpenFOAM. The domain consisted of one fuel injector into the test section. After 15 through flows the flow field was laminar at the hole outlet and therefore no time average was performed. Afterwards the data is extracted from a 2D plane upstream of the fuel injectors outlet. The performed LES for the first and second dataset were discretized with second order schemes in space and time. The third data set was derived by applying the inverse heat conduction method using MATLAB and COMSOL. Here, the data for the algorithms was provided from wall-embedded thermocouples.