Results 31 to 40 of about 186,953 (245)

Shape optimization of viscous flow field considering fluid-structure-interactive

Nihon Kikai Gakkai ronbunshu, 2021
This paper presents numerical solution to a shape optimization of viscous flow field for stationary fluid-structure-interactive (FSI) fields. In the FSI analysis, a weak coupled analysis is used to alternately analyze the governing equations of the flow ...
Eiji KATAMINE, Ryuga KAWAI, Hibiki YAMASHITA   +2 more
doaj   +1 more source

On high-order pressure-robust space discretisations, their advantages for incompressible high Reynolds number generalised Beltrami flows and beyond [PDF]

, 2019
An improved understanding of the divergence-free constraint for the incompressible Navier--Stokes equations leads to the observation that a semi-norm and corresponding equivalence classes of forces are fundamental for their nonlinear dynamics. The recent
Gauger, Nicolas R., Linke, Alexander, Schroeder, Philipp W.   +2 more
core   +3 more sources

A New Expanded Mixed Element Method for Convection-Dominated Sobolev Equation

The Scientific World Journal, 2014
We propose and analyze a new expanded mixed element method, whose gradient belongs to the simple square integrable space instead of the classical H(div; Ω) space of Chen’s expanded mixed element method.
Jinfeng Wang, Yang Liu, Hong Li, Zhichao Fang   +3 more
doaj   +1 more source

Identification of muscle activity in tongue motion during swallowing through medical image data

Journal of Biomechanical Science and Engineering, 2021
This paper presents a formulation to identify muscle activities from the variation in shapes of organs during swallowing. We assume that each organ consists of a three-dimensional hyperelastic body, and the contraction movement of the muscle is caused by
Hideyuki AZEGAMI, Shinjiro ONO, Kenzen TAKEUCHI, Takahiro KIKUCHI, Yukihiro MICHIWAKI, Keigo HANYU, Tetsu KAMIYA   +6 more
doaj   +1 more source

Free Material orientation design for tailoring vibration eigenvalues of CFRP shell structures

Nihon Kikai Gakkai ronbunshu, 2021
In this paper, we present a non-parametric material orientation optimization method for tailoring the vibration eigenvalues of laminated shell structures composed of orthotropic carbon-fiber-reinforced plastic (CFRP) materials.
Ryosuke TSUKIHARA, Masatoshi SHIMODA
doaj   +1 more source

A macroscopic crowd motion model of gradient flow type [PDF]

, 2010
A simple model to handle the flow of people in emergency evacuation situations is considered: at every point x, the velocity U(x) that individuals at x would like to realize is given.
Aude Roudneff-chupin, Aude Roudneff-chupin, Aude Roudneff-chupin, Bertrand Maury, Filippo Santambrogio   +4 more
core   +2 more sources

Simultaneous optimization of shape and topology for solid structure (Proposal of a topology optimization method with variable design domain)

Nihon Kikai Gakkai ronbunshu
Since the optimization results obtained by topology optimization depend on the size of the design domain, it is desirable to optimize the design domain as well during topology optimization.
Daiki YAMANE, Masatoshi SHIMODA
doaj   +1 more source

Preparation and intraocular evaluation of cetirizine hydrochloride ophthalmic liposomes and a liposome in situ gel

MedComm – Biomaterials and Applications, 2023
Cetirizine hydrochloride (CTZ), an antiallergic drug, is a new‐generation H1 receptor antagonist and a second‐generation H1 antihistamine. We aimed to prepare cetirizine hydrochloride liposomes, based on which cetirizine hydrochloride liposomal (CTZL) in
Jing Zhang, Lan Wang, Jianghong Li, Yuhong Guo, Jinxin Chen, Xudong Li, Man Cheng, Bo Feng, Ying Zhang   +8 more
doaj   +1 more source

Shape optimization of a fish-like hyperelastic body vibrating with a swimming mode

Mechanical Engineering Journal, 2021
In this study, a formulation of the inverse problem to identify the shape of a hyperelastic body in which the vibration mode is similar to the swimming mode of a fish is presented.
Takuya HAYASHI, Hideyuki AZEGAMI
doaj   +1 more source

Preserving multiple first integrals by discrete gradients

, 2011
We consider systems of ordinary differential equations with known first integrals. The notion of a discrete tangent space is introduced as the orthogonal complement of an arbitrary set of discrete gradients.
Dahlby, Morten, Owren, Brynjulf, Yaguchi, Takaharu   +2 more
core   +1 more source