000147777 001__ 147777
000147777 005__ 20250103153614.0
000147777 0247_ $$2doi$$a10.1063/5.0039038
000147777 0248_ $$2sideral$$a141228
000147777 037__ $$aART-2021-141228
000147777 041__ $$aeng
000147777 100__ $$aAlmeida, Y.
000147777 245__ $$aJoint-velocity scalar energy probability density function method for large eddy simulations of compressible flow
000147777 260__ $$c2021
000147777 5060_ $$aAccess copy available to the general public$$fUnrestricted
000147777 5203_ $$aThe combination of large eddy simulation (LES) and probability density function (PDF) methods is a general framework to model turbulent reactive flows. The coupled approach provides direct closures for the nonlinear subgrid source terms typical of chemically reacting flows. LES-PDF methods have a wide range of applicability and they are started to be used in high-speed flows with strong compressibility effects. However, PDF formulations are more complex in compressible flows, where mechanical and thermodynamic contributions are more coupled. The paper presents a novel PDF framework that uses a full thermodynamic closure (scalar-energy-density-velocity) with the Eulerian Monte Carlo stochastic field approach. The work uses simple closures for the subgrid terms using the advantages of the Eulerian formulation and recasts the stochastic equations in a pseudoconservative form. The resultant formulation is applied to three canonical compressible flows: turbulent shock-tubes, compressible homogeneous turbulence, and a reactive free-moving premixed flame. All cases show large density and pressure fluctuations. The effects of underlying numerical schemes and PDF closures to represent compressible effects are investigated along with the statistical convergence of the method.
000147777 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000147777 590__ $$a4.98$$b2021
000147777 591__ $$aPHYSICS, FLUIDS & PLASMAS$$b2 / 34 = 0.059$$c2021$$dQ1$$eT1
000147777 591__ $$aMECHANICS$$b18 / 138 = 0.13$$c2021$$dQ1$$eT1
000147777 592__ $$a1.189$$b2021
000147777 593__ $$aComputational Mechanics$$c2021$$dQ1
000147777 593__ $$aMechanics of Materials$$c2021$$dQ1
000147777 593__ $$aMechanical Engineering$$c2021$$dQ1
000147777 593__ $$aCondensed Matter Physics$$c2021$$dQ1
000147777 594__ $$a5.7$$b2021
000147777 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000147777 700__ $$0(orcid)0000-0001-8342-6573$$aNavarro-Martinez, S.
000147777 773__ $$g33, 3 (2021), 035155 [14 pp.]$$pPhys. fluids$$tPhysics of Fluids$$x1070-6631
000147777 8564_ $$s2768900$$uhttps://zaguan.unizar.es/record/147777/files/texto_completo.pdf$$yVersión publicada
000147777 8564_ $$s981658$$uhttps://zaguan.unizar.es/record/147777/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000147777 909CO $$ooai:zaguan.unizar.es:147777$$particulos$$pdriver
000147777 951__ $$a2025-01-03-13:21:20
000147777 980__ $$aARTICLE