Annual Research Briefs 2020

Thirty years of Dynamic Modeling.
U. Piomelli and P. Moin 
Engineering aspects of hypersonic turbulent flows at suborbital enthalpies.
J. Urzay and M. Di Renzo 
Performance of wallmodeled LES for external aerodynamics in the NASA juncture flow.
A. LozanoDurán, S. T. Bose and P. Moin 
Subgridscale modeling sensitivities in wallmodeled largeeddy simulations of a highlift aircraft configuration.
K. Goc, S. T. Bose and P. Moin 
Toward a flowstructurebased wallmodeled largeeddy simulation paradigm.
A. Elnahhas, A. LozanoDurán and P. Moin 
Incorporating nonequilibrium effects in an ODEbased wall model.
K. P. Griffin, L. Fu and P. Moin 
Wallstress modeling for laminar boundary layers in coarse grids.
C. A. Gonzalez, M. Karp and P. Moin 
Requirements and sensitivity analysis of RANSfree wallmodeled LES.
M. Whitmore, A. LozanoDura´n and P. Moin 
Wallmodeled LES of threedimensional intersecting shock wave/turbulent boundarylayer interactions.
L. Fu, S. T. Bose and P. Moin 
Aerodynamic and acoustic characteristics of twin supersonic rectangular jets using largeeddy simulations.
J. Jeun, G. J. Wu, S. K. Lele, A. Karnam, F. Baier and E. Gutmark 
Coherence and feedback in supersonic rectangular jet screech.
G. J. Wu, S. K. Lele and J. Jeun 
Global eigenfunctions of supersonic jets: vortical, acoustic, and thermal components.
M. Karp and M. J. P. Hack 
Toward modeling rocket nozzles through artificial boundary conditions.
K. Maeda 
Lagrangian dynamics of the tensor diffusivity model for turbulent subfilter stresses.
P. L. Johnson 
On the assessment of symmetries in largeeddy simulation subgridscale models.
J. Guo and O. Shende 
Estimating performance bounds of machinelearning Reynoldsstress models via optimal tensor basis expansions.
A. J. Banko and J. K. Eaton 
Selfcritical machinelearning wallmodeled LES for external aerodynamics.
A. LozanoDurán and H. J. Bae 
Forecasting extreme dissipation events in wall turbulence using machine learning.
S. R. Harris and M. J. P. Hack 
A nonuniform perturbation to quantify RANS model uncertainties.
Z. Huang, A. Mishra and G. Iaccarino 
Global direct and adjoint modes of a hypersonic flow over a cone.
T. J. Flint and M. J. P. Hack 
Wellposed marching of disturbances using the spatial perturbation equations.
S. R. Harris, P. Moin and M. J. P. Hack 
An NPhard problem solver for the Paretoefficient combustion framework.
Q. Douasbin and M. Ihme 
Effect of operating conditions on core noise for a realistic gasturbine combustor.
C. X. Shao and M. Ihme 
A characteristic length scale for density gradients in supercritical monocomponent flows near pseudoboiling.
L. Jofre and J. Urzay 
Cascadebased EuleriantoLagrangian subgridscale modeling of bubble breakup in breaking waves.
W. H. R. Chan, A. LozanoDura´n and P. Moin 
A kinetic energyand entropypreserving scheme for the simulation of compressible twophase turbulent flows.
S. S. Jain and P. Moin 
Linear stability of a thin fluid film interacting with its surrounding bulk fluid.
S. Mirjalili and W. H. R. Chan 
Modeling heat and mass transfer across interfaces in twophase flows using phasefield methods.
S. Mirjalili, S. S. Jain and A. Mani 
Diffuseinterface capturing methods for compressible multiphase fluid flows and elasticplastic deformation in solids:
Part I. Methods.
M. C. Adler, S. S. Jain, J. R. West, A. Mani and S. K. Lele 
Diffuseinterface capturing methods for compressible multiphase fluid flows and elasticplastic deformation in solids:
Part II. Results and discussion.
S. S. Jain, M. C. Adler, J. R. West, A. Mani and S. K. Lele 
Twodimensional scaledependent RayleighTaylor dynamics with variable acceleration in a finitesize domain.
H. Hwang and S. I. Abarzhi 
Threedimensional scaledependent RayleighTaylor dynamics with variable acceleration in a finitesize domain:
Part I. Solutions of bubbles in linear and nonlinear regimes.
H. Hwang and S. I. Abarzhi 
Threedimensional scaledependent RayleighTaylor dynamics with variable acceleration in a finitesize domain:
Part II. Solutions of spikes in linear and nonlinear regimes.
H. Hwang and S. I. Abarzhi 
Linear twodimensional RayleighTaylor dynamics with variable acceleration: Comparisons between theory and simulations.
H. Hwang, W. H. R. Chan, S. S. Jain and S. I. Abarzhi