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HPC on AWS
HGSTではHDDの研究開発に不可欠な様々な解析ツールをAWS上で稼働させています。このセッションではSTAR-CCM+のスケーラビリティ、リモートでのプリポストプロセッシング、データ管理に関する検証結果をご紹介します。特にスケーラビリティについてはCD-adapco様ご協力の元、物理クラスターとの性能比較もご紹介します。また様々な検証のなかで見えてきたクラウドHPCの成果と課題についてもお話します。
DESとFW-Hによるシロッコファンの送風音予測
シロッコファンは多くの場所で使われ、人に近い場所で使われることが多いファンであるために、その低騒音化のためにこれまで多くの実験的研究が行われて来ました。しかしながらその内部流れはかなり複雑で騒音源の特定も実験では難しいことからCFDによる空力騒音解析が望まれています。今回は比較的計算コストの低いDESと分離解法であるFW-H法を組み合わせて小型シロッコファンの送風音を計算しました。実測結果と比較して定性的、定量的にリーズナブルな予測ができました。
CFD解析による粉末吸入喘息治療薬の気道内沈着挙動シミュレーション
これまで開発されてきた粉末吸入製剤について、理論的に粒子の肺内到達率を予測し、吸入製剤の設計が行われたことがほとんどない。それは、粉末吸入製剤の気道内での通過挙動や肺内到達挙動を予測するのが困難なためである。また、in-vitro実験によるカスケードインパクターにより得られた肺到達率を示す指標値が高くても、粉末吸入剤が肺深部まで到達していない可能性がある。本講演では、粉末吸入剤の肺への到達率を向上させるため、CFD(Computational Fluid Dynamics)を用いた気道内シミュレーション解析を行う。その際、既に実験で得られている喘息治療薬のトラニラスト粉末吸入製剤での肺内到達挙動と比較することで、肺内到達率を向上させる最適粒子について提案する。
A segurança em primeiro lugar: Desenvolvendo projetos mais seguros através da Simulação de CFD na Atkins Oil & Gas
A CD-adapco apresentará o Webinar sobre simulações de CFD aplicadas em projetos de segurança em instalações offshore e onshore (LNG, FLNG, plataformas de perfuração e produção, refinarias, etc.). A segurança é de primordial importância para projetistas e operadores nas instalações offshore e onshore . Neste contexto, as simulações de CFD tem sido amplamente utilizadas para predição e avaliação das consequências de vazamentos de hidrocarbonetos e focos de incêndio, com o objetivo de auxiliar nas decisões do projeto. Dispersão de gases e acúmulo de nuvens de gases; Modelagem de explosão; Focos...
通过使用STAR- CCM+®的宏命令来加速电子散热仿真分析
・ 注册方法: 希望参加本Webinar的客户,请从本页面的注册窗口进行注册。 ※从本页面注册后,数分钟后您的注册邮箱会收到自动发送的邮件回复,请注意查收。如果长时间没有收到邮件回复,请与我司联系。 ※注册时,请务必使用所在单位的邮箱进行注册;公共邮箱注册的情况,有可能会被拒绝,请了解。 【内容介绍】 CFD模拟不够快——任何使用CFD的人都会同意这一点。大部分时候,当你说这句话的时候都考虑的是计算速度,但实际上将从CAD到计算结果作为一个整体来考虑会更好。 从CAD到计算结果所花费的时间包含很多方面,除了计算机的计算时间外,还包括用户的交互操作时间,而用户的交互操作通常是最耗时的。因此,加速用户的交互操作是提高效率的焦点。 这次研讨会将探索在进行电子散热仿真分析时利用STAR-CCM+的宏来自动化和加速用户交互操作。首先会讲述一些关于宏的录制和运行的基本操作,通过几个例子来展示如果帮助进行问题设置与结果查看,另外还会介绍一些高级应用。 【关于 Webinar 】 Webinar是一种通过网络媒体进行的技术研讨活动,我们通过WebEx系统在网络上提供技术交流。用户只需要在计算机上连接网络就可以聆听和观看技术报告以及产品功能的展示。我们会提供网络和对方付费的电话号码实现声音的传输。Webinar登录的详细方法,会在注册后的邮件回复中进行说明
Using Electrochemistry Modeling to Optimize Production and Design
This webcast explores how new advances in electrochemistry technology can be used to provide insight into the design of manufacturing processes or product optimization. Fuel cells, electroplating and corrosion processes all require a combination of fluid flow and electrochemistry to accurately predict behavior and performance. Integrated advanced simulation offers an effective solution for this purpose. Our invited external speaker, Professor John Harb of Brigham Young University, presents how we plan to use these models to explore new research topics. Electrochemistry specialist Chris Lueth...
STAR-CCM+ v10.04 delivers two new features to help streamline your process for extracting the right information from your simulations. We have added an option to store a history of simulation data at the boundaries only, resulting in a significant savings in disk space and a substantial reduction in time to navigate the stored results. We have also added custom summaries, to enable you to choose exactly what content you want to save from your simulation file in a customized HTML report. With custom summaries, you’ll be able to focus on fewer details, resulting in more effective and efficient communication of the key elements of your simulation efforts.
Better Products Faster through Multidisciplinary Design Exploration
With ever more powerful computer hardware available and increased access to easy-to-use analysis environments, engineers now have the tools available to gain insight into product behavior like never before. The question is, how do you take that insight and use it to not only understand the behavior, but to improve it? Furthermore, how can design exploration help? This webcast demonstrates how advancements in simulation are allowing engineers to make better designs through multidisciplinary design exploration. Included in this will be the use of the adjoint solver for sensitivity analysis and...
Practical application of Computational Fluid Dynamics (CFD) for predicting flow pattern around a ship hull and calculation of total resistance has been a topic of great interest for researchers in ship hydrodynamics. Today, several CFD tools have been developed to analyse and capture the free surface around a ship. The flow problem is rich in complexity and poses many challenges during simulation. Many mesh sizes were tried during modelling with Realizable k-epsilon and shear stress Transport (SST) k-omega turbulent models. The free surface wave pattern and the total resistance (shear and...
A direct numerical simulation was used to study the buoyancy driven turbulent flow inside a horizontal annular cavity at Rayleigh number, Ra = 1.18 × 10 9 , and cylinders diameters ratio of 4.85. Mean and rms temperature profiles are in good agreement with experiments. Turbulent kinetic energy budgets have been calculated to verify the accuracy of the unstructured finite volume code on polyhedral cells in Direct Numerical Simulation (DNS) mode. The code is found to return satisfactory results for first and second order statistics, and coherent turbulent kinetic energy budgets, except for the...

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