In this paper, the design optimization of a high-lift airfoil consisted with a slat, a main wing and a flap is considered for a take-off condition. The design parameters are the elements' setting. Leading edge device, slat, should be deployed with the continuous motion from the setting for take-off to the setting for landing condition. Therefore, design space is defined with satisfying its requirement Slat is considered zero-gap. Objective function considered here is to minimize the drag co-efficient (C_d) at a target lift co-efficient (C_l) which satisfies the FAR regulation. 16 samples are selected by Latin hypercube sampling method and they are evaluated using Reynolds Averaged Navier-Stokes Simulation (RANS). After this evaluation, Kriging model is constructed and the minimum C_d point is explored by Genetic Algorithm (GA).

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This paper describes how to operate the CAE technology on the stage of design. One of the methods is the knowledge based CAE system including the automated modeling system. Authors have developed the new system. The features are as follows. (1) Showing the standardization on the screen (2) Programming the MACRO of any commercial software.

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The next generation super-computer of 10 Peta flops class is now under development as a national project. Software development for the human body simulator is assigned as a grand challenge program for the effective use of this super-computer. As one of the research teams for this human body simulator, we are developing the simulator for the organs and the whole human body scales. Here, the objectives of our study and the research plans are briefly introduced.

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The purpose of this study is to develop a multi-scale hemodynamic model capable of simulating wave propagation in the human cardiovascular system (CVS) in a closed-loop manner. For this purpose, a 0D model of the CVS and a 1D model of the arterial tree are constructed and merged via 0-1D hemodynamic coupling computation at the aortic inlet and the terminals of the arterial tree (interfaces). The resulting 0-1D multi-scale hemodynamic model is a closed-loop system, which resembles the in vivo closed-loop structure of the CVS. The blood pressure/flow waveforms simulated in various portions of the CVS are in reasonable agreements with the general clinical observations.

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The deformed behavior of multiple red blood cells in a channel flow is analyzed by direct numerical simulations. The flow of red blood cells in plasma is modeled with the immersed boundary method. The in-plane elastic tensions and the transverse shear tensions in the membrane accompanied with the flow-induced deformation are formulated in Cartesian coordinates according to Pozrikidis's work. The Skalak's hyper elastic model and neo-Hooken model are adopted for the calculation of different tensions respectively. The deformation and interaction of multiple red blood cells in a channel flow is reproduced. The numerical results show that in a channel flow with the diameter 4 times of volumetric equivalent diameter of the red blood cell, the apparent viscosity in the channel increases with the presence of red blood cells, and this viscosity decreases with the increase of the shear stress coefficient of the red blood cell's membrane.

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For carotid artery stentint, brain matter must be prevented from ischemic stroke. While dilatation of stenotic segment and delivery of stent, the distal part of the internal carotid artery is occluded for this prevention. However, external carotid artery has possible collateral flow to the brain circulation. In this paper, flow around the carotid bifurcation was simulated to show blood stream through the stenotic segment of the internal carotid artery to the external carotid. Alternative protection should be considered if collateral flow via external carotid artery is visualized

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We proposed a multiscale analysis of epitaxial piezoelectric thin film fabricated on substrate. At first, the energy of piezoelectric crystals, which are under epitaxit ial strain caused by mismatch with substrate, was evaluated by ab initio calculations. Next, preferred orientations were predicted by the energy of piezoelectric crystals. Then, the obtained preferred orientations were introduced into microstructure and macro piezoelectric properties were evaluated by multiscale finite element method based on homogenization method. As a result, preferred orientations and macro relative dielectric constants have a good relation with experimental ones.

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In order to characterize piezoelectric thin films fabricated on silica substrate, the relation between displacement response and piezoelectric strain constants have been analyzed by finite element method. Pseudo-piezoelectric strain constant was investigated when an electric load was applied to piezoelectric thin film by disc-type electrode. And then, a displacement measuring condition to reduce size dependence was searched by using two parameters, which are the thickness of piezoelectric thin film and the radius of top electrode. Computational results indicated that piezoelectric strain constant d_<33> of thin film has good correlation and its value can be identified with displacement response under the appropriate measuring condition.

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It is well known that the stresses become singular at the edge point of the interface of dissimilar materials. In this study, two-dimensional thermoelastic analysis of dissimilar materials is treated. There is the problem that numerical analysis method evaluates infinite value as finite value. By comparing theoretical solution with numerical solution their effects were clear. It was found that the minimum element size was limited. After then, the dissimilar material subjected to asymmetrical heating has been analyzed.

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流体構造連成問題を分離反復型解法で解くことを考える.分離型解法は構造と流体の問題を独立に扱う解法で,並列計算の容易さや既存の計算スキームの有効利用という観点から広く研究されている.特に分離反復型解法では分離型解法に時間ステップ内反復の概念を導入することにより精度や安定性を高めているが,その際用いられる非線形連成アルゴリズムによって性能が異なる.本発表では主な非線形連成アルゴリズムについて精度・安定性・計算時間・並列化などの様々な観点から比較を行い,数値実験結果について報告する.

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The Free-kick Support System is the system that raises the score efficiency at the free kick. However, this system treated the aerodynamic properties as the constant so far. In this study, large scale fluid analysis around soccer ball are performed for evaluating aerodynamic properties of soccer ball. As a result, the Free-kick Support System will become more accurate for evaluating trajectory of soccer ball.

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Recently, the cycle of the product development becomes fast, therefore, the development time spent in one product is required to be short. Furthermore, better quality of the product is also requested in the short development time. The quality evaluation of the product using CAE with 3D-CAD is general, now. That is, the decrement of the evaluation time makes the development time short and/or improves the quality of the product by increasing the evaluation number of times. However, there are many different kinds of CAE and 3D-CAD software. It causes to long training and operation times of operators. In this paper, a software system to offer a common interface and support advices for different CAE and CAD systems is proposed. It is developed by using the XML and Perl languages. The efficiency of product development and evaluation is significantly improved.

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High Intensity Focused Ultrasound (HIFU) therapy has been developed for the treatment of deeply-placed cancer such as the liver and brain cancer. Problems are the displacement of focal point due to the reflection and refraction of ultrasound at the interfaces of bones and the attenuation of ultrasound due to the skins, fat and tissues. To minimize the invasive region of tissues by HIFU, the numerical simulation is available for the. prediction of the treatment of tissues. The development of the numerical simulation of ultrasound propagation through the voxel modeled body based on the MRI and CT data is reported. The results of the three-dimensional computation show the displacement of focal point for the ultrasound of 1MHz through the bone plate in water.

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