Comparison of a closed-loop control by means of high-fidelity and low-fidelity coupled CFD/RBD computations. (August 2020)

• Record Type: Journal Article
• Authors: Franze, Marius
• Other Names: Choukroun Daniel guest-editor.; Choukroun Daniel guest-editor.
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 234:Number 10(2020)
• Page Start: 1611
• Page End: 1623
• Publication Date: 2020-08
• Subjects: Computational fluid dynamics -- trajectory simulation -- flight mechanic -- rigid body dynamic -- coupling; Aeronautics -- Periodicals; Astronautics -- Periodicals; Airplanes -- Design and construction -- Periodicals; Aerospace industries -- Periodicals; 629.1
• DOI: 10.1177/0954410019882275
• Languages: English
• ISSNs: 0954-4100

Abstract

This work compares the principle of a basic fin-controlled sounding rocket with coupled computational fluid dynamic and rigid body dynamic simulations of two coupling environments: (1) a low-fidelity approach using Missile DATCOM as semi-empirical aerodynamic solver, and (2) a high-fidelity approach using DLR TAU as URANS CFD code. The flight mechanics solver REENT is used in both cases. A closed-loop flight path control is developed and adjusted via low-fi simulations and then verified via high-fi simulations. For simple roll and pitching maneuvers the environments match well, whereas differences can be seen in complex maneuvers, e.g. body–body interactions of separation procedures.