MUNA - Minimisation and management of uncertainties of CFD calculations
Overview
Background & policy context:
The numerical simulation of flows is an indispensable method for all aerodynamic development work on the aircraft. It is a key technology for improving the efficiency, environmental compatibility and safety of newly developed aircrafts and thus contributes significantly to the competitiveness of the German aviation industry.
The design process of future airplanes is supposed to base mainly on simulation data. The numerical air flow simulation is a key technology for that. Therefore, it is necessary to handle upcoming errors and uncertainties in a reliable way and try to minimize them.
Objectives:
Based on the simulation programmes developed in the previous projects MEGAFLOW and MEGADESIGN, the MUNA project will develop and deploy methods by which the uncertainties occurring in forecasting air flows can be analysed, quantified and minimised.
Priorities of the project are:
- the identification of sources of uncertainty and quantifying characteristic errors,
- analysis of sensitivities and the calculation of error ranges,
- the development of methods and procedures to minimize dominant fault,
- verification the methods and proof of reliability.
Building on the MEGAFLOW and MEGADESIGN project teams, MUNA concentrates the national research activities in numerical aerodynamics in an efficient network and thus strengthens the German position in the European context.
Methodology:
The MUNA project was divided into several work packages:
- WP1: Management
- WP2: Identify and quantify uncertainties.
- WP3: Methods for analysis and estimation of uncertainties
- WP4: handling with and minimization of uncertainties
- WP5: Testing of the new methods
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