output
19942026
most citedNew Tolerance Factor to Predict the Stability of Perovskite Oxides and Halides

1.8k citations

Showing physics.flu-dynShow all

12 papers · 1 filter

physics.flu-dyn2024

Improved pressure-gradient sensor for the prediction of separation onset in RANS models

Kevin Patrick Griffin, Ganesh Vijayakumar, Ashesh Sharma +1

We improve upon two key aspects of the Menter shear stress transport (SST) turbulence model: (1) We propose a more robust adverse pressure gradient sensor based on the strength of…

physics.flu-dyn2024★ 4 cited

A Priori Uncertainty Quantification of Reacting Turbulence Closure Models using Bayesian Neural Networks

Graham Pash, Malik Hassanaly, Shashank Yellapantula

While many physics-based closure model forms have been posited for the sub-filter scale (SFS) in large eddy simulation (LES), vast amounts of data available from direct numerical s…

physics.flu-dyn2023★ 24 cited

Direct numerical simulation of a high-pressure hydrogen micromix combustor: flame structure and stabilisation mechanism

Thomas L. Howarth, Mark A. Picciani, Edward S. Richardson +2

A high-pressure hydrogen micromix combustor has been investigated using direct numerical simulation with detailed chemistry to examine the flame structure and stabilisation mechani…

physics.flu-dyn2023★ 44 cited

Near-wall model for compressible turbulent boundary layers based on an inverse velocity transformation

Kevin Patrick Griffin, Lin Fu, Parviz Moin

In this work, a near-wall model, which couples the inverse of a recently developed compressible velocity transformation [Griffin, Fu, & Moin, PNAS, 118:34, 2021] and an algebraic t…

physics.flu-dyn2021★ 24 cited

A Moving Embedded Boundary Approach For The Compressible Navier-Stokes Equations In A Block-Structured Adaptive Refinement Framework

Mahesh Natarajan, Ray Grout, Weiqun Zhang +1

A computational technique has been developed to perform compressible flow simulations involving moving boundaries using an embedded boundary approach within the block-structured ad…

physics.flu-dyn2020★ 86 cited

Analytical solution for the cumulative wake of wind turbines in wind farms

Majid Bastankhah, Bridget L. Welch, Luis A. Martínez-Tossas +2

This paper solves an approximate form of conservation of mass and momentum for a turbine in a wind farm array. The solution is a fairly simple explicit relationship that predicts t…

physics.flu-dyn2020★ 2 cited

The Area Localized Coupled Model for Analytical Mean Flow Prediction in Arbitrary Wind Farm Geometries

Genevieve M. Starke, Charles Meneveau, Jennifer R. King +1

This work introduces the Area Localized Coupled (ALC) model, which extends earlier approaches to coupling classical wake superposition and atmospheric boundary layer models in orde…

physics.flu-dyn2020★ 17 cited

Mechanisms of dynamic near-wake modulation of a utility-scale wind turbine

Aliza Abraham, Luis A. Martinez-Tossas, Jiarong Hong

The current study uses large eddy simulations to investigate the transient response of a utility-scale wind turbine wake to dynamic changes in atmospheric and operational condition…

physics.flu-dyn2020★ 23 cited

Wake steering of multirotor wind turbines

Gustav A. Speakman, Mahdi Abkar, Luis A. Martínez-Tossas +1

In this paper, wake steering is applied to multirotor turbines to determine whether it has the potential to reduce wind plant wake losses. Through application of rotor yaw to multi…

physics.flu-dyn2019★ 43 cited

Assessment of low-altitude atmospheric turbulence models for aircraft aeroelasticity

Georgios Deskos, Alfonso del Carre, Rafael Palacios

We investigate the dynamic response of flexible aircraft in low-altitude atmospheric turbulence. To this end, three turbulence models of increasing fidelity, namely, the one-dimens…

physics.flu-dyn2019★ 4 cited

Data recovery in computational fluid dynamics through deep image priors

Marc T. Henry de Frahan, Ray W. Grout

One of the challenges encountered by computational simulations at exascale is the reliability of simulations in the face of hardware and software faults. These faults, expected to…

physics.flu-dyn2018★ 34 cited

From Deep to Physics-Informed Learning of Turbulence: Diagnostics

Ryan King, Oliver Hennigh, Arvind Mohan +1

We describe tests validating progress made toward acceleration and automation of hydrodynamic codes in the regime of developed turbulence by three Deep Learning (DL) Neural Network…