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Approximating the linear response of physical chaos
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2022
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Adam A. Śliwiak
Qiqi Wang
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A Hierarchical Jacobi Iteration for Structured Matrices on GPUs using Shared Memory
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2022
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Mohammad Shafaet Islam
Qiqi Wang
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Efficient Computation of Linear Response of Chaotic Attractors with One-Dimensional Unstable Manifolds
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2022
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Nisha Chandramoorthy
Qiqi Wang
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A Trajectory-Driven Algorithm for Differentiating SRB Measures on Unstable Manifolds
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2022
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Adam A. Śliwiak
Qiqi Wang
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Approximating linear response of physical chaos
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2022
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Adam A. Śliwiak
Qiqi Wang
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Scheduled Relaxation Jacobi schemes for non-elliptic partial
differential equations
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2021
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Mohammad Shafaet Islam
Qiqi Wang
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Aerodynamic Risk Assessment using Parametric, Three-Dimensional Unstructured, High-Fidelity CFD and Adaptive Sampling
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2021
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Runda Ji
Qiqi Wang
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Assessment of Detached Eddy Simulation and Sliding Mesh Interface in predicting Tiltrotor Performance in Helicopter and Airplane Modes
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2021
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Feilin Jia
J. Moore
Qiqi Wang
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Differentiating densities on smooth manifolds
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2021
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Adam A. Śliwiak
Qiqi Wang
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Computational assessment of smooth and rough parameter dependence of statistics in chaotic dynamical systems
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2021
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Adam A. Śliwiak
Nisha Chandramoorthy
Qiqi Wang
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On the probability of finding nonphysical solutions through shadowing
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2021
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Nisha Chandramoorthy
Qiqi Wang
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An ergodic-averaging method to differentiate covariant Lyapunov vectors
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2021
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Nisha Chandramoorthy
Qiqi Wang
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Space-split algorithm for sensitivity analysis of discrete chaotic systems with unstable manifolds of arbitrary dimension
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2021
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Adam A. Śliwiak
Qiqi Wang
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Scheduled Relaxation Jacobi schemes for non-elliptic partial differential equations
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2021
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Mohammad Shafaet Islam
Qiqi Wang
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Efficient computation of linear response of chaotic attractors with one-dimensional unstable manifolds
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2021
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Nisha Chandramoorthy
Qiqi Wang
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Adjoint-based trailing edge shape optimization of a transonic turbine vane using large eddy simulations
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2020
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Chaitanya Talnikar
Qiqi Wang
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A data driven heuristic for rapid convergence of general Scheduled Relaxation Jacobi (SRJ) schemes.
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2020
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Mohammad Shafaet Islam
Qiqi Wang
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Ergodic sensitivity analysis of one-dimensional chaotic maps
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2020
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Adam A. Śliwiak
Nisha Chandramoorthy
Qiqi Wang
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A BeiDou Signal Acquisition Approach Using Variable Length Data Accumulation Based on Signal Delay and Multiplication
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2020
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Menghuan Yang
Hong Wu
Qiqi Wang
Yingxin Zhao
Zhiyang Liu
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Multi-Group Multicast Beamforming: Optimal Structure and Efficient Algorithms
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2020
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Min Dong
Qiqi Wang
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A computable realization of Ruelle's formula for linear response of statistics in chaotic systems
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2020
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Nisha Chandramoorthy
Qiqi Wang
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Variational optimization and data assimilation in chaotic time-delayed systems with automatic-differentiated shadowing sensitivity
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2020
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Nisha Chandramoorthy
Luca Magri
Qiqi Wang
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A data driven heuristic for rapid convergence of Scheduled Relaxation Jacobi schemes
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2020
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Mohammad Shafaet Islam
Qiqi Wang
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Adjoint-based trailing edge shape optimization of a transonic turbine vane using large eddy simulations
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2020
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Chaitanya Talnikar
Qiqi Wang
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Feasibility Analysis of Ensemble Sensitivity Computation in Turbulent Flows
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2019
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Nisha Chandramoorthy
Pablo Fernández
Chaitanya Talnikar
Qiqi Wang
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Nanophotonic media for artificial neural inference
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2019
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Erfan Khoram
Ang Chen
Dianjing Liu
Lei Ying
Qiqi Wang
Ming Yuan
Zongfu Yu
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Sensitivity computation of statistically stationary quantities in turbulent flows
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2019
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Nisha Chandramoorthy
Qiqi Wang
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Sensitivity analysis on chaotic dynamical systems by Finite Difference Non-Intrusive Least Squares Shadowing (FD-NILSS)
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2019
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Angxiu Ni
Qiqi Wang
Pablo Fernández
Chaitanya Talnikar
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Reynolds-averaged Navier–Stokes equations with explicit data-driven Reynolds stress closure can be ill-conditioned
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2019
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Jinlong Wu
Heng Xiao
Rui Sun
Qiqi Wang
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Toward computing sensitivities of average quantities in turbulent flows
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2019
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Nisha Chandramoorthy
Zhong-Nan Wang
Qiqi Wang
Paul G. Tucker
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Sensitivity computation of statistically stationary quantities in turbulent flows
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2019
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Nisha Chandramoorthy
Qiqi Wang
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RANS Equations with Reynolds Stress Closure Can Be Ill-Conditioned
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2018
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Jinlong Wu
Heng Xiao
Rui Sun
Qiqi Wang
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Nanophotonic Media for Artificial Neural Inference
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2018
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Erfan Khoram
Ang Chen
Dianjing Liu
Lei Ying
Qiqi Wang
Ming Yuan
Zongfu Yu
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Multiple shooting shadowing for sensitivity analysis of chaotic dynamical systems
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2017
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Patrick Blonigan
Qiqi Wang
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Sensitivity Analysis for a Chaotic Flow past a 3-D Cylinder by the Finite Difference Non-Intrusive Least Squares Shadowing (NILSS) Algorithm
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2017
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Angxiu Ni
Chaitanya Talnikar
Pablo Fernández
Qiqi Wang
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Sensitivity analysis on chaotic dynamical systems by Finite Difference Non-Intrusive Least Squares Shadowing (FD-NILSS) and application on a chaotic flow past a 3-D cylinder
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2017
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Angxiu Ni
Qiqi Wang
Pablo Fernández
Chaitanya Talnikar
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Sensitivity analysis on chaotic dynamical systems by Non-Intrusive Least Squares Shadowing (NILSS)
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2017
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Angxiu Ni
Qiqi Wang
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Toward a chaotic adjoint for LES
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2017
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Patrick Blonigan
Pablo Fernández
Scott M. Murman
Qiqi Wang
Georgios Rigas
Luca Magri
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Least Squares Shadowing Method for Sensitivity Analysis of Differential Equations
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2017
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Mario Chater
Angxiu Ni
Patrick Blonigan
Qiqi Wang
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Toward a chaotic adjoint for LES
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2017
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Patrick Blonigan
Pablo Fernández
Scott M. Murman
Qiqi Wang
Georgios Rigas
Luca Magri
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Lyapunov Exponents and Covariant Vectors for Turbulent Flow Simulations
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2016
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Patrick Blonigan
Scott M. Murman
Pablo Fernández
Qiqi Wang
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Simplified Least Squares Shadowing sensitivity analysis for chaotic ODEs and PDEs
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2016
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Mario Chater
Angxiu Ni
Qiqi Wang
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Unsteady Adjoint of Pressure Loss for a Fundamental Transonic Turbine Vane
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2016
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Chaitanya Talnikar
Qiqi Wang
Gregory M. Laskowski
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Unsteady Adjoint of Pressure Loss for a Fundamental Transonic Turbine Vane
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2016
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Chaitanya Talnikar
Qiqi Wang
Gregory M. Laskowski
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Sensitivity analysis on chaotic dynamical system by Non-Intrusive Least Square Shadowing (NI-LSS)
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2016
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Angxiu Ni
Patrick Blonigan
Mario Chater
Qiqi Wang
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Adjoint-based Gradient Estimation Using the Space-time Solutions of Unknown Conservation Law Simulations
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2016
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Han Chen
Qiqi Wang
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Decomposition of stencil update formula into atomic stages
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2016
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Qiqi Wang
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Toward real-time high-fidelity simulation using integral boundary layer modeling
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2016
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Alexandre Noll Marques
Qiqi Wang
Johan Larsson
Gregory M. Laskowski
Sanjeeb Bose
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The swept rule for breaking the latency barrier in time advancing PDEs
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2015
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Maitham Alhubail
Qiqi Wang
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Simultaneous single-step one-shot optimization with unsteady PDEs
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2015
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Stefanie Günther
Nicolas R. Gauger
Qiqi Wang
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Towards high-fidelity aerospace design in the age of extreme scale supercomputing (Invited)
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2015
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Qiqi Wang
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The Implications of Tolerance Optimization on Compressor Blade Design
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2015
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Eric Dow
Qiqi Wang
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Simultaneous One-shot optimization with unsteady PDEs
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2015
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Stefanie Günther
Nicolas R. Gauger
Qiqi Wang
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Least Squares Shadowing method for sensitivity analysis of differential equations
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2015
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Mario Chater
Angxiu Ni
Patrick Blonigan
Qiqi Wang
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Towards high-delity aerospace design in the age of extreme scale supercomputing
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2015
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Qiqi Wang
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Simultaneous Single-Step One-Shot Optimization with Unsteady PDEs
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2015
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Stefanie Günther
Nicolas R. Gauger
Qiqi Wang
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Unsteady adjoint of pressure loss for a fundamental transonic turbine vane
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2015
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Chaitanya Talnikar
Qiqi Wang
Gregory M. Laskowski
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The Implications of Tolerance Optimization on Compressor Blade Design
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2014
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Eric Dow
Qiqi Wang
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The prospect of using large eddy and detached eddy simulations in engineering design, and the research required to get there
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2014
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Johan Larsson
Qiqi Wang
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Multigrid‐in‐time for sensitivity analysis of chaotic dynamical systems
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2014
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Patrick Blonigan
Qiqi Wang
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Least squares shadowing sensitivity analysis of a modified Kuramoto–Sivashinsky equation
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2014
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Patrick Blonigan
Qiqi Wang
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Probability density adjoint for sensitivity analysis of the Mean of Chaos
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2014
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Patrick Blonigan
Qiqi Wang
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Least Squares Shadowing sensitivity analysis of chaotic limit cycle oscillations
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2014
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Qiqi Wang
Rui Hu
Patrick Blonigan
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Least Squares Shadowing for Sensitivity Analysis of Turbulent Fluid Flows
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2014
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Patrick Blonigan
Steven Gomez
Qiqi Wang
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Least Squares Shadowing for Sensitivity Analysis of Turbulent Fluid Flows
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2014
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Patrick Blonigan
Steven Gomez
Qiqi Wang
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Convergence of the Least Squares Shadowing Method for Computing Derivative of Ergodic Averages
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2014
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Qiqi Wang
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Parallel optimization for large eddy simulations
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2014
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Chaitanya Talnikar
Patrick Blonigan
Julien Bodart
Qiqi Wang
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Optimization of Gaussian Random Fields
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2014
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Eric Dow
Qiqi Wang
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Active Subspace Methods in Theory and Practice: Applications to Kriging Surfaces
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2014
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Paul G. Constantine
Eric Dow
Qiqi Wang
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Towards scalable parallel-in-time turbulent flow simulations
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2013
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Qiqi Wang
Steven Gomez
Patrick Blonigan
Alastair Gregory
Elizabeth Qian
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The drag-adjoint field of a circular cylinder wake at Reynolds numbers 20, 100 and 500
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2013
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Qiqi Wang
Junhui Gao
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A Mathematical Analysis of the Least Squares Sensitivity Method
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2013
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Qiqi Wang
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Multigrid-in-time for sensitivity analysis of chaotic dynamical systems
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2013
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Patrick Blonigan
Qiqi Wang
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Forward and adjoint sensitivity computation of chaotic dynamical systems
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2012
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Qiqi Wang
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Adjoint-Based Aerodynamic Optimization of Supersonic Biplane Airfoils
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2012
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Rui Hu
Antony Jameson
Qiqi Wang
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Sensitivity computation of periodic and chaotic limit cycle oscillations
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2012
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Qiqi Wang
Rui Hu
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Sensitivity computation of chaotic limit cycle oscillations
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2012
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Qiqi Wang
Rui Hu
Patrick Blonigan
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Residual Minimizing Model Interpolation for Parameterized Nonlinear Dynamical Systems
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2012
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Paul G. Constantine
Qiqi Wang
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Input Subspace Detection for Dimension Reduction in High Dimensional Approximation
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2012
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Paul G. Constantine
Qiqi Wang
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Adjoint based aerodynamic optimization of supersonic biplane airfoils
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2011
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Rui Hu
Antony Jameson
Qiqi Wang
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A Rational Interpolation Scheme with Superpolynomial Rate of Convergence
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2010
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Qiqi Wang
Parviz Moin
Gianluca Iaccarino
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A Rational Interpolation Scheme with Superpolynomial Rate of Convergence
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2010
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Qiqi Wang
Parviz Moin
Gianluca Iaccarino
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