User Manual for the SU2 EQUiPS Module: Enabling Quantification of Uncertainty in Physics Simulations

TL;DR

This paper introduces the EQUiPS module for the SU2 software, which uses eigenspace perturbation to quantify epistemic uncertainties in RANS turbulence models, providing interval bounds on key quantities.

Contribution

It presents the implementation and testing of the EQUiPS module in SU2, enabling uncertainty quantification in physics simulations involving turbulence models.

Findings

Successfully implemented in SU2 for various benchmark cases

Provides interval bounds capturing epistemic uncertainties

Demonstrates applicability to aerodynamic flows

Abstract

This document serves as the manual for using the EQUiPS (Enabling Quantification of Uncertainty in Physics Simulations) module in SU2. The EQUiPS module uses the Eigenspace Perturbation methodology to provide interval bounds on Quantities of Interest (QoIs) that capture epistemic uncertainties arising from assumptions made in RANS turbulence models. This has been implemented and tested in SU2 for a variety of benchmark turbulence cases as well as flows of aerodynamic interest.