Investigation of Cavity Flow Effects on Store Separation Trajectories

AbstractIn this paper, we introduce the discrete Maxwellian equilibrium distribution function for incompressible flow and force term into the two-stage third-order Discrete Unified Gas-Kinetic Scheme (DUGKS) for simulating low-speed turbulent flows. The Wall-Adapting Local Eddy-viscosity (WALE) and Vreman sub-grid models for Large-Eddy Simulations (LES) of turbulent flows are coupled within the present framework. Meanwhile, the implicit LES are also presented to verify the effect of LES models. A parallel implementation strategy for the present framework is developed, and three canonical wall-bounded turbulent flow cases are investigated, including the fully developed turbulent channel flow at a friction Reynolds number (Re) about 180, the turbulent plane Couette flow at a friction Re number about 93 and lid-driven cubical cavity flow at a Re number of 12000. The turbulence statistics, including mean velocity, the r.m.s. fluctuations velocity, Reynolds stress, etc. are computed by the present approach. Their predictions match precisely with each other, and they are both in reasonable agreement with the benchmark data of DNS. Especially, the predicted flow physics of three-dimensional lid-driven cavity flow are consistent with the description from abundant literature. The present numerical results verify that the present two-stage third-order DUGKS-based LES method is capable for simulating inhomogeneous wall-bounded turbulent flows and getting reliable results with relatively coarse grids.

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When administered to rats in a cold environment, 3,4-methylenedioxymethamphetamine reduces brown adipose tissue thermogenesis and increases tail blood flow: Effects of pretreatment with 5-HT1A and dopamine D2 antagonists

Neuroscience ◽

10.1016/j.neuroscience.2008.04.041 ◽

2008 ◽

Vol 154 (4) ◽

pp. 1619-1626 ◽

Cited By ~ 24

Author(s):

D.E. Rusyniak ◽

Y. Ootsuka ◽

W.W. Blessing

Keyword(s):

Blood Flow ◽

Adipose Tissue ◽

Brown Adipose Tissue ◽

Cold Environment ◽

Dopamine D2 ◽

Brown Adipose ◽

Brown Adipose Tissue Thermogenesis ◽

Flow Effects ◽

D2 Antagonists ◽

Tail Blood

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Compressible subsonic cavity flow in a nozzle

Journal of Mathematical Physics ◽

10.1063/5.0022475 ◽

2021 ◽

Vol 62 (1) ◽

pp. 011505

Author(s):

Xiaohui Wang

Keyword(s):

Cavity Flow

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