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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Large eddy simulation of premixed turbulent combustion using a non-adiabatic, strain-sensitive flamelet approach
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Large eddy simulations of the turbulent flows of twin parallel jets
Not Available
Direct Numerical Simulation Study of Turbulence and Flame Structure in Transverse Jets Analysed in Jet-Trajectory Based Coordinates
Abstract not provided
On the transition to large fluxes and access to second stability in gyrokinetic simulations of electromagnetic turbulence in STEP
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Direct Numerical Simulations of isotropic turbulence interacting with a shock-wave [Slides]
Abstract Not Provided
Direct Numerical Simulations of isotropic turbulence interacting with a shock-wave (IC_project: w12_dnsturb) [Slides]
Navier-Stokes equations are numerically solved using the CFDNS code, without any turbulence model or shock-capturing/fitting schemes. Whole range of spatial and temporal scales of the turbulence are resolved. Shock wave structure resolved as a solution to the N-S equations.
Implicit Large Eddy Simulations(ILES) and Turbulence modeling
No abstract provided.
Mitigating chemical stiffness in turbulent reacting flow simulations via an adaptive reduced-order model with time-dependent bases
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Multifidelity Bayesian Optimization for Steady-State Predictions using Gyrokinetic Simulations of Plasma Turbulence
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Gas-kinetic simulations of compressible turbulence over a mean-free-path-scale porous wall.
Abstract not provided.
In-Situ Adaptive Manifolds: Enabling computationally efficient simulations of complex turbulent reacting flows
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Statistical analysis of atmospheric turbulence about a simulated block building
An array of towers instrumented to measure the three components of wind speed was used to study atmospheric flow about a simulated block building. Two-point spacetime correlations of the longitudinal velocity component were computed along with two-point spatial correlations. These correlations are in good agreement with fundamental concepts of fluid mechanics. The two-point spatial correlations computed directly were compared with correlations predicted by Taylor's hypothesis and excellent agreement was obtained at the higher levels which were out of the building influence. The correlations fall off significantly in the building wake but recover beyond the wake to essentially the same values in the undisturbed, higher regions.