Nonlinear Aeroelastic Reduced-Order Modeling Approach with Geometric Gradient Computation Capability

2021 ◽  
Author(s):  
Jeffrey Thomas ◽  
Earl H. Dowell
Keyword(s):  
Reduced Order Modeling ◽  
Reduced Order ◽  
Modeling Approach ◽  
Gradient Computation

scholarly journals A nonintrusive adaptive reduced order modeling approach for a molten salt reactor system

2020 ◽  
Vol 141 ◽  
pp. 107321 ◽  
Author(s):  
Fahad Alsayyari ◽  
Marco Tiberga ◽  
Zoltán Perkó ◽  
Danny Lathouwers ◽  
Jan Leen Kloosterman
Keyword(s):  
Molten Salt ◽  
Reduced Order Modeling ◽  
Reactor System ◽  
Molten Salt Reactor ◽  
Reduced Order ◽  
Modeling Approach

scholarly journals A goal-oriented reduced-order modeling approach for nonlinear systems

2016 ◽  
Vol 71 (11) ◽  
pp. 2155-2169 ◽  
Author(s):  
Jeff Borggaard ◽  
Zhu Wang ◽  
Lizette Zietsman
Keyword(s):  
Nonlinear Systems ◽  
Reduced Order Modeling ◽  
Reduced Order ◽  
Modeling Approach

scholarly journals Investigation of the Effects of Length to Depth Ratio on Open Supersonic Cavities Using CFD and Proper Orthogonal Decomposition

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Ibrahim Yilmaz ◽  
Ece Ayli ◽  
Selin Aradag
Keyword(s):  
Proper Orthogonal Decomposition ◽  
Stokes Equations ◽  
Reduced Order Modeling ◽  
Orthogonal Decomposition ◽  
Navier Stokes ◽  
Reduced Order ◽  
Modeling Approach ◽  
Depth Ratio ◽  
Minimum Number ◽  
Proper Orthogonal

Simulations of supersonic turbulent flow over an open rectangular cavity are performed to observe the effects of length to depth ratio (L/D) of the cavity on the flow structure. Two-dimensional compressible time-dependent Reynolds-averaged Navier-Stokes equations with k-ωturbulence model are solved. A reduced order modeling approach, Proper Orthogonal Decomposition (POD) method, is used to further analyze the flow. Results are obtained for cavities with severalL/Dratios at a Mach number of 1.5. Mostly, sound pressure levels (SPL) are used for comparison. After a reduced order modeling approach, the number of modes necessary to represent the systems is observed for each case. The necessary minimum number of modes to define the system increases as the flow becomes more complex with the increase in theL/Dratio. This study provides a basis for the control of flow over supersonic open cavities by providing a reduced order model for flow control, and it also gives an insight to cavity flow physics by comparing several simulation results with different length to depth ratios.

scholarly journals Reduced-Order Modeling Approach for Materials Design with a Sequence of Processes

AIAA Journal ◽  
2018 ◽  
Vol 56 (12) ◽  
pp. 5041-5044 ◽  
Author(s):  
Pinar Acar ◽  
Veera Sundararaghavan
Keyword(s):  
Materials Design ◽  
Reduced Order Modeling ◽  
Reduced Order ◽  
Modeling Approach

Reduced-Order Modeling Approach for Blisks with Large Mass, Stiffness, and Geometric Mistuning

AIAA Journal ◽  
2012 ◽  
Vol 50 (2) ◽  
pp. 366-374 ◽  
Author(s):  
Andrew Madden ◽  
Bogdan I. Epureanu ◽  
Sergio Filippi
Keyword(s):  
Large Mass ◽  
Reduced Order Modeling ◽  
Reduced Order ◽  
Modeling Approach
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