Article Newspaper/Magazine

# Proceedings of the 2022 Summer Program

#### I. Modeling Turbulence and Transition Using Data-Driven Approaches

- Overview

*A. Lozano-Duran* - Wall-modeled large-eddy simulation based on building-block flows.

*Y. Ling, G. Arranz, E. Williams, K. Goc, K. Griffin and A. Lozano-Duran* - POD-mode-augmented wall model and its applications to flows at non- equilibrium conditions.

*C. Hansen, M. P. Whitmore, M. Abkar and X. I. A. Yang* - Multi-agent reinforcement learning for wall modeling in LES of flow over periodic hills.

*D. Zhou, M. P. Whitmore, K. P. Griffin and H. J. Bae* - Investigation and prediction of roughness-induced high-speed boundary-layer transition using machine learning.

*O. Marxen, A. T. Margaritis, P. J. Schmid, T. J. Flint and G. Iaccarino* - Fast Macroscopic Forcing Method.

*S. H. Bryngelson, F. Schafer, J. Liu and A. Mani*

#### II. Data-Driven Methods

- Overview

*C. T. Williams* - Data-driven reduction of lookup libraries for the simulation of non-equilibrium effects in hypersonic flows.

*C. Scherding, T. Sayadi, C. Williams, M. Di Renzo, G. Rigas and P. J. Schmid* - Data-driven closure of the harmonic-balanced Navier-Stokes equations in the frequency domain.

*G. Rigas, P. J. Schmid* - Investigating nonlinearity in wall turbulence: regenerative versus parametric mechanisms.

*B. F. Farrell, E. Kim, H. J. Bae, M. A. Nikolaidis and P. J. Ioannou* - Adaptive resolvent analysis with application to high-enthalpy flows.

*S. Gomez, C. Williams, M. Di Renzo, P. Schmid and B. McKeon* - Convolutional autoencoded echo state network for the prediction of extreme events in turbulence.

*N. A. K. Doan, A. Racca and L. Magri* - On interpretability and proper latent decomposition of autoencoders.

*L. Magri and N. A. K. Doan*

#### III. Multiphase and Particle-Laden Flows

- Overview

*S. Mirjalili and S. Jain* - A zonal advection-diffusion-reaction model for self-disturbance correction in point-particle computations.

*S. V. Apte* - Effect of interpolation kernels and grid refinement on two waycoupled point-particle simulations.

*S. V. Apte, N. Keane, S. S. Jain and M. A. Khanwale* - Multiresolution analysis of inertial particle tessellations for clustering dynamics.

*K. Matsuda, K. Schneider, T. Oujia, J. West, S. S. Jain and K. Maeda* - Neural networks for synthesizing preferential concentration of particles in isotropic turbulence.

*T. Oujia, S. S. Jain, K. Matsuda, K. Schneider, J. West and K. Maeda* - Divergence and curl of the inertial particle velocity in a four-way coupled turbulent channel flow.

*J. R. West, T. Oujia, K. Matsuda, K. Schneider, S. S. Jain and K. Maeda* - Improving volume-averaged particle-laden flow models using resolved simulations of particle diffusers.

*M. Vartdal and S. S. Jain* - Lagrangian subgrid-scale modeling applied to evolving firebrand particle transport.

*I. D. Santos, B. Mahato, B. Bornhoft, S. S. Jain and N. Yaghoobian* - A mass-conserving pressure-based method for two-phase flows with phase change

*N. Scapin, A. Shahmardi, W. H. R. Chan, S. S. Jain, S. Mirjalili, M. Pelanti and L. Brandt* - A dual-scale sub-grid closure for LES of phase interfaces with phase change.

*A. Goodrich, D. Kedelty and M. Herrmann* - Flow physics characterization of microconfined high-pressure transcritical fluids turbulence.

*M. Bernades, F. Capuano, K. Maeda and L. Jofre* - Investigation of a novel numerical scheme for high-pressure supercritical fluids turbulence.

*M. Bernades, L. Jofre and F. Capuano* - Spectral analysis of multidimensional current-driven plasma instabilities and turbulence in hollow cathode plumes.

*W. H. R. Chan, K. Hara, J. M. Wang, S. S. Jain, S. Mirjalili and I. D. Boyd*

#### IV. Combustion

- Overview

*K. Maeda* - Development of large-Eddy simulation combustion models for thermodiffusive instabilities in turbulent hydrogen flames.

*L. Berger , A. Attili J. Wang, K. Maeda and H. Pitsch* - Characteristics and NOx formation mechanism of thermodiffusively un- stable premixed hydrogen flames.

*X. Wen, L. Berger, K. Maeda, J. Wang, A. Parente and H. Pitsch* - Introducing thermodiffusive effects in large-eddy simulation of turbulent combustion for lean hydrogen-air flames.

*A. Aniello, D. Laera, L. Berger, A. Attilik and T. Poinsot* - A Local criterion for distinguishing detonation and deflagration for pressure gain combustion.

*H. A. Elasrag, J. Hoke, B. Rankin and S. A. Schumaker* - Investigation of the effect of conjugate heat transfer on the adiabatic effectiveness of an annular gas turbine engine combustor.

*M. Cui and S. Bose* - Modeling turbulence interaction with reacting iron particles.

*S. Guhathakurta, S. S. Hemamalini, A. Ravi, J. A. van Oijen, Cuenot, J. Wang, K. Maeda, H. Wang and X. C. Mi*

#### V. Analysis of Turbulent Boundary Layers

- Overview

*P. L. Johnson* - Characterizing mean and turbulent structures of hurricane winds via large-eddy simulations.

*F. Sabet, Y. R. Yi, L. Thomas and M. Momen* - Geometrical comparison of the Reynolds shear stress within boundary layer transition and fully developed turbulence.

*A. Elnahhas, A. Lozano-Dura´n and J. Wallace* - A universal velocity transformation for boundary layers with pressure gradients.

*X. I. A. Yang, P. E. S. Chen, W. Wu and K. P. Griffin* - A framework for studying turbulent boundary layer interaction with anisotropic compliant surface.

*A. Shahriar and K. Shoele* - An angular momentum integral equation for high-speed boundary layers.

*A. Kianfar, M. Di Renzo, C. Williams, A. Elnahhas and P. L. Johnson* - Stagnation enthalpy effects on turbulent compression corner flow at Mach 5.

*M. Di Renzo, C. T. Williams, J. Urzay and S. Pirozzoli*

#### VI. High-Fidelity Simulations and Applications

- Overview

*R. Agrawal and D. Bodony* - Influence of Miura-origami shapes on drag in turbulent flows.

*T. Zahtila, L. Chan, A. Ooi, K. Liu, M. Benjamin and G. Iaccarino* - Temporal stability analysis of high Mach number boundary layers over cooled impedance walls.

*L. De Broeck, S. Gortz, T. Flint, C. Gonzalez, M. Oberlack and S. Lele* - Adjoint-based sensitivity of shock-laden flows.

*D. J. Bodony and A. Fikl* - A new approach to large-eddy simulations of wall-bounded turbulence using a fixed-width filter.

*S. Ghosal, R. Agrawal, A. Elnahhas and P. Johnson* - Airfoil trailing-edge noise source identification using large-eddy simulation and wavelet transform.

*S. Lee, D. Kang, D. Brouzet and S. K. Lele* - Rotor performance and turbulent wake simulations of a scaled helicopter rotor in hover using wall-modeled large-eddy simulations.

*Z. T. Stratton, S.T. Bose and J. Svorcan*

Publication Date

2022