Application of multi-dimensional sodium fire analysis code AQUA-SF to severe accident (Benchmark analysis of upward spray combustion experiment) by Mitsuhiro AOYAGI, Takashi TAKATA, Shuji OHNO, Masayoshi UNO

“…A validation study has been conducted through a benchmark analysis of an upward spray combustion experiment. …”
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Identification of linear 1-dof system based on the maximum likelihood estimation using the analytical solution of Fokker-Planck equation by Soichiro TAKATA

“…The results of the benchmark test are shown in the accuracy of the propose method is higher than its of HPM and ARM, respectively. …”
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Formulation of a computational asymptotic bifurcation theory applicable to hill-top branching and multiple bifurcation analyses by Masato TANAKA, Takashi SASAGAWA, Ryuji OMOTE, Fumio FUJII

“…The first- and second-order derivatives of the stiffness matrix with respect to nodal degrees-of-freedom (DoF) are required to formulate the proposed computational asymptotic bifurcation theory. In two benchmark problems of hill-top branching and multiple bifurcation, the validation and performance of the proposed theory are discussed.…”
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Numerical analysis of dam breaking behavior of Bingham pseudoplastic fluid by using the explicit MPS method by Hideyo NEGISHI, Hiroaki AMAKAWA, Kazuaki MANIWA, Shingo OBARA, Makoto HAYAMA, Daming DONG

“…Grease dam breaking was defined as a benchmark problem and its collapsing phenomena were experimentally observed. …”
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Quantitative analysis of latent space in airfoil shape generation using variational autoencoders by Kazuo YONEKURA

“…Research on shape generation using machine learning has been widely conducted, and two-dimensional laminar flow airfoils are treated as a benchmark problem. When learning airfoil shapes using variational autoencoders (VAEs), it is known that the results obtained by ordinary VAE (N-VAE) and hyperspherical VAE (S-VAE) differ significantly. …”
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Numerical analysis of the coupling phenomena between fluid and elastic solid by the SPH method by Misuzu OCHIAI, Tsukasa NAKAYAMA

“…To validate the performance of the present method, several benchmark problems are solved. Those problems are the well-known dam-breaking problem, the bending oscillation of a cantilever and the deformation of an elastic plate due to time-dependent water flow. …”
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Development of forked divergence particle swarm optimization by So FUKUHARA, Masao ARAKAWA

“…The results of experiments on benchmark problems showed the highly accurate solutions were stably obtained even for problems with a large number of variables using the proposed method.…”
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OpenFOAM analysis of air-entraining and submerged vortices in pump sump by Ryo YAMASAKI, Toshinori KOUCHI, Yasunori NAGATA, Shinichiro YANASE

“…We conducted numerical simulations of the benchmark experiments of the pump sump conducted by Matsui et al. (2006, 2016) and compared the simulation with the experimental data to investigate the effects of turbulence model, grid density and detection method of the vortices. …”
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Topology optimization of transient response problems using step by step integration method (Formulation of analytical sensitivity with displacement as an unknown quantity and synth... by Shun OGAWA, Takayuki YAMADA

“…Furthermore, the accuracy of the sensitivity is verified by using the finite difference method as a benchmark, and it is shown that the proposed design sensitivity has high accuracy. …”
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Accurate calculation of the surface tension force and the droplet simulation using a particle method with moving surface mesh by Takuya MATSUNAGA, Seiichi KOSHIZUKA, Tomoyuki HOSAKA, Eiji ISHII

“…As numerical verification, simulations of three benchmark problems, namely circular patch test, Laplace pressure test and 2D droplet (liquid column) oscillation problems with different oscillation modes, have been carried out. …”
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Best resolution and post-optimal analysis in co-operation of multi-objective optimization and multi-objective evolutionary algorithm (An application to multiple car structures desi... by Jaekyu YOO, Yoshiaki SHIMIZU

“…After preliminarily examining some properties of the idea, a practical benchmark problem on multiple car structure design has been solved to discuss the significance of the proposed idea. …”
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Performance analysis and optimum design of a heat exchanger for waste heat recovery by Hiromasa YANAGISAWA, Yuichiro TANAKA, Shuichi NAKAGAWA

“…And then, the optimum design of the heat exchanger has been considered for the solution of a trade-off problem between the heat transfer rate and the pressure drop of exhaust gas based on a genetic algorithm coupled with the mathematical model. Moreover, the benchmark experiment has been carried out with some prototypes of heat exchanger based on the optimum calculations, and the validation study of the mathematical model has presented by the comparison with the experiments. …”
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Spaciotemporal optimization of mesh moving techniques for fluid-structure interactions by Yuki YAMAMOTO, Giwon HONG, Naoto MITSUME, Tomonori YAMADA, Shinobu YOSHIMURA

“…In this study, we develop optimization approaches for the parameter both in space and time directions adopting three optimization methods: static optimization, global optimization and local optimization. Benchmark problems were analyzed for quantitative evaluation of these three approaches. …”
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Z-factor equations for elastic-plastic fracture mechanics analysis prescribed in the JSME rules on fitness-for-service for nuclear power plants by Masayuki KAMAYA, Hideo MACHIDA, Masao ITATANI, Kiminobu HOJO

“…In this report, the validation of the proposed Z-factor equations was examined through a benchmark analysis for sample cases. The analyzed model was pipes with an axial or circumferential surface crack. …”
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