نتایج جستجو برای: standard k
تعداد نتایج: 872959 فیلتر نتایج به سال:
in the present work a two dimensional numerical investigation of steam flows in a turbine blade passage is performed. a finite volume approach has been used and the pressure–velocity coupling is resolved using the simple algorithm. the purpose of this paper is to find that one of the used turbulent models is better for this kind of studies. a structured mesh arrangement with boundary layer mesh...
Background: Nanoscale poly (amidoamine) dendrimers have been investigated for their biological demands, but their antibacterial activity has not been widely discovered. Thus, the sixth generation of poly (amidoamine) dendrimer (PAMAM-G6) was synthesized and its antibacterial activities were evaluated on Gram-negative bacteria; P. aeruginosa, E. coli, A. baumannii, S. typhimur...
We empirically investigate a number of strategies for solving the clustering problem under the minimum variance error criterion. First, we compare the behavior of four algorithms, 1) randomized minimum spanning tree, 2) hierarchical grouping, 3) randomized maximum cut, and 4) standard k-means. We test these algorithms with a large corpus of both contrived and real-world data sets and nd that st...
A non-premixed coaxial oxy-fuel turbulent flame was studied numerically with standard and realizable k-ε turbulence model and a comparison was made between them. The governing equations were solved by finite volume approach and were discretized using the second order upwind scheme. The presumed β-PDF model was applied to model turbulence-combustion interaction. The discrete ordinate radiation h...
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