An Eulerian–Lagrangian mixed discrete least squares meshfree method for incompressible multiphase flow problems

Gargari, S. Faraji; Kolahdoozan, Morteza; Afshar, Mohammad; Dabiri, Sadegh

doi:10.1016/j.apm.2019.06.002

Cited by 7 publications

(1 citation statement)

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“…Munikrishna and Balakrishnan [27] applied a hybrid meshless-Cartesian grid method to calculate turbulent flow using the RANS turbulence model coupled with the zero equation of the meshless solver LSFD-U. Gargari et al [28,29] proposed a mixed discrete least squares meshless (MDLSM) method for the incompressible Navier-Stokes equation and ALE equation, enjoying higher accuracy than the DLSM method.…”

Section: Introductionmentioning

confidence: 99%

Application of Least Squares Meshless Method in Multi-component High-Speed Non-equilibrium Reaction Jet

Wang¹,

Xue²,

Cai³

et al. 2020

IJDNE

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This paper designs a novel least squares (LS) meshless method for the three-dimensional (3D) problem of multi-component high-speed non-equilibrium reaction jet. Specifically, the space derivative was solved by the LS method, and the artificially upstream flux vector splitting (AUFS) scheme was introduced to compute the convection term in the control equation. Considering the possibility of chemical reactions, the flow field parameters were updated by the finite-rate reaction model; the rigidity of chemical reactions was solved by the time splitting method. In addition, the 3D computational domain was discretized into simple weighted points with clear physical meanings. On this basis, the complex problems of the steady flow around the high-speed flying projectile with the angle of attack, and the 3D muzzle flow field with brake were calculated. The results prove that the proposed LS meshless method is a feasible way to capture the shock structure in complex flow fields. The proposed method provides a new solution to multi-component high-speed non-equilibrium reaction jets.

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Section: Introductionmentioning

confidence: 99%