scholarly journals Uncertain reduced-order modeling for unsteady aerodynamics with interval parameters and its application on robust flutter boundary prediction

2017 ◽  
Vol 71 ◽  
pp. 214-230 ◽  
Author(s):  
Xianjia Chen ◽  
Zhiping Qiu ◽  
Xiaojun Wang ◽  
Yunlong Li ◽  
Ruixing Wang
Keyword(s):  
Unsteady Aerodynamics ◽  
Reduced Order Modeling ◽  
Reduced Order ◽  
Interval Parameters ◽  
Flutter Boundary

Reduced Order Modeling for the Flutter Stability Analysis of a Highly Loaded Transonic Fan

2012 ◽  
Author(s):  
Markus May
Keyword(s):  
Stability Analysis ◽  
Reduced Order Modeling ◽  
Computational Time ◽  
Influence Coefficient ◽  
Cfd Simulations ◽  
Reduced Order ◽  
Flutter Boundary ◽  
Sampling Procedures ◽  
Transonic Fan ◽  
Highly Loaded

Reduced order modeling strategies are applied to the aeroelastic stability analysis of the highly loaded transonic DLR UHBR fan. Latin hypercube and risk-based sampling procedures are employed to choose samples in a multidimensional parameter space that enable an accurate prediction of the flutter boundary without performing unsteady CFD simulations for several modes in the whole operating range. The combination with an influence coefficient approach facilitates even further savings in terms of computational time without losing physics quality.

Static/Dynamic Correction Approach for Reduced-Order Modeling of Unsteady Aerodynamics

2006 ◽  
Vol 43 (4) ◽  
pp. 865-878 ◽  
Author(s):  
Jeffrey P. Thomas ◽  
Earl H. Dowell ◽  
Kenneth C. Hall
Keyword(s):  
Unsteady Aerodynamics ◽  
Reduced Order Modeling ◽  
Dynamic Correction ◽  
Reduced Order

scholarly journals Reduced-Order Modeling of Unsteady Aerodynamics Across Multiple Mach Regimes

2014 ◽  
Vol 51 (6) ◽  
pp. 1681-1704 ◽  
Author(s):  
Torstens Skujins ◽  
Carlos E. S. Cesnik
Keyword(s):  
Unsteady Aerodynamics ◽  
Reduced Order Modeling ◽  
Reduced Order
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