323 citations · 426 across the 15 of their papers we have counts for
15 papers
Direct numerical simulation of two boundary layers with the same pressure distribution but different surface curvatures
Philippe Spalart, Kenneth Jansen, Gary Coleman
A pair of Direct Numerical Simulations is used to investigate curvature and pressure effects. One has a Gaussian test bump and a straight opposite wall, while the other has a strai…
In Situ Framework for Coupling Simulation and Machine Learning with Application to CFD
Riccardo Balin, Filippo Simini, Cooper Simpson +7
Recent years have seen many successful applications of machine learning (ML) to facilitate fluid dynamic computations. As simulations grow, generating new training datasets for tra…
Turbulent boundary layer with strong favorable pressure gradient and curvature effects: Streamline coordinate and scaling analysis
Aviral Prakash, Riccardo Balin, John A. Evans +1
Direct numerical simulation (DNS) of a turbulent boundary layer over the Gaussian (Boeing) bump is performed. This boundary layer exhibits a series of adverse and favorable pressur…
Invariant Data-Driven Subgrid Stress Modeling on Anisotropic Grids for Large Eddy Simulation
Aviral Prakash, Kenneth E. Jansen, John A. Evans
We present a new approach for constructing data-driven subgrid stress models for large eddy simulation of turbulent flows using anisotropic grids. The key to our approach is a Gali…
Optimal Clipping of Structural Subgrid Stress Closures for Large Eddy Simulation
Aviral Prakash, Kenneth E. Jansen, John A. Evans
Structural subgrid stress models for large eddy simulation often allow for backscatter of energy from unresolved to resolved turbulent scales, but excessive model backscatter can e…
Invariant Data-Driven Subgrid Stress Modeling in the Strain-Rate Eigenframe for Large Eddy Simulation
Aviral Prakash, Kenneth E. Jansen, John A. Evans
We present a new approach for constructing data-driven subgrid stress models for large eddy simulation of turbulent flows. The key to our approach is representation of model input…
Bi-fidelity Reduced Polynomial Chaos Expansion for Uncertainty Quantification
Felix Newberry, Jerrad Hampton, Kenneth Jansen +1
A ubiquitous challenge in design space exploration or uncertainty quantification of complex engineering problems is the minimization of computational cost. A useful tool to ease th…
Direct Numerical Simulation of a Turbulent Boundary Layer with Strong Pressure Gradients
Riccardo Balin, Kenneth E. Jansen
The turbulent boundary layer over a Gaussian shaped bump is computed by direct numerical simulation (DNS) of the incompressible Navier-Stokes equations. The two-dimensional bump ca…
Direct Numerical Simulation of a Turbulent Boundary Layer on a Flat Plate Using Synthetic Turbulence Generation
James R. Wright, Riccardo Balin, John W. Patterson +2
The turbulent boundary layer over a flat plate is computed by direct numerical simulation (DNS) of the incompressible Navier-Stokes equations as a test bed for a synthetic turbulen…
Interactive Geometry Modification of High Performance Finite Element Simulations
Corey Wetterer-Nelson, Kenneth E. Jansen, John A. Evans
In the context of high performance finite element analysis, the cost of iteratively modifying a computational domain via re-meshing and restarting the analysis becomes time prohibi…
S-Frame Discrepancy Correction Models for Data-Informed Reynolds Stress Closure
Eric L. Peters, Riccardo Balin, Kenneth E. Jansen +2
Despite their well-known limitations, RANS models remain the most commonly employed tool for modeling turbulent flows in engineering practice. RANS models are predicated on the sol…
Boundary Layer Adaptivity For Incompressible Turbulent Flows
Kedar C. Chitale, Michel Rasquin, Onkar Sahni +2
Boundary layers in turbulent flows require fine grid spacings near the walls which depend on the choice of turbulence model. To satisfy these requirements a semi-structured mesh is…
Finite Element Flow Simulations of the EUROLIFT DLR-F11 High Lift Configuration
Kedar C. Chitale, Michel Rasquin, Jeff Martin +1
This paper presents flow simulation results of the EUROLIFT DLR-F11 multi-element wing configuration, obtained with a highly scalable finite element solver, PHASTA. This work was a…
Anisotropic Boundary Layer Adaptivity of Multi-Element Wings
Kedar C. Chitale, Michel Rasquin, Onkar Sahni +2
Multi-element wings are popular in the aerospace community due to their high lift performance. Turbulent flow simulations of these configurations require very fine mesh spacings es…
Outflow boundary conditions for 3D simulations of non-periodic blood flow and pressure fields in deformable arteries
Irene Vignon-Clementel, C. A. Figueroa, K. E. Jansen +1
The simulation of blood flow and pressure in arteries requires outflow boundary conditions that incorporate models of downstream domains. We previously described a coupled multidom…