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High-Fidelity CFD-CSM Interaction in the Industrial Context

Stickan, Bernd and Rempke, Arne and Helm, Sebastian and Bleecke, Hans (2017) High-Fidelity CFD-CSM Interaction in the Industrial Context. In: IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics. International Forum on Aeroelasticity and Structural Dynamics IFASD 2017, 25.-28. Jun. 2017, Como, Italien.

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The inclusion of structural deformations into aerodynamic computations is mandatory for nowadays highly accurate computational fluids dynamics (CFD) solvers. These CFDCSM simulations are often performed with beam-stick structural models. This paper gives an overview about the usage of CFD-CSM interaction with very detailed structural models in an R+T context. Application examples are a detailed, but linear, AWIATOR test case FEM as well as multibody and nonlinear structural models for large civil aircrafts. For this kind of examples, the coupling method of aerodynamic and structural model has increased requirements. Additionally for complex aircraft configurations, the stability of CFD-CSM chains is reduced through the possibility of negative cell occurrances in the CFD mesh after deformation. A method using a finite-element method approach is introduced to repair these negative cells at runtime.

Item URL in elib:https://elib.dlr.de/116996/
Document Type:Conference or Workshop Item (Speech)
Title:High-Fidelity CFD-CSM Interaction in the Industrial Context
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Helm, SebastianUNSPECIFIEDhttps://orcid.org/0000-0001-5483-0884UNSPECIFIED
Journal or Publication Title:IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:CFD-CSM, CFD mesh deformation, CFD mesh repair, nonlinear FEM, multi-body simulation, fluid-structure interaction
Event Title:International Forum on Aeroelasticity and Structural Dynamics IFASD 2017
Event Location:Como, Italien
Event Type:international Conference
Event Dates:25.-28. Jun. 2017
Organizer:Fondazione Alessandro Volta
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, BS
Institute of Aeroelasticity > Aeroelastic Simulation
Deposited By: Rempke, Arne
Deposited On:12 Dec 2017 10:53
Last Modified:29 Mar 2023 00:35

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