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Automated solution of the inverse problem in electronics cooling
The majority of engineering simulations involve a known geometry, prescribed conditions and computation of the predicted results. However, the design question is often posed as the inverse: I have a desired result and need to know what conditions or what geometry will produce that result. For an electronics cooling situation, the inverse problem description might be that you have a targeted maximum temperature for the components and you need to determine what geometry will produce this for a given set of conditions, or alternatively, what are the maximum heat dissipations allowed for a given...
STAR-CCM+の導入をご検討のお客様を対象に、モデリングから 計算実行・結果処理までの一連の流れを実際に操作体験いただけます。
STAR-CCM+の導入をご検討のお客様を対象に、モデリングから 計算実行・結果処理までの一連の流れを実際に操作体験いただけます。
最適化ツールの導入をご検討のお客様を対象に、設計探査作業(最適化、 実験計画法、応答曲面等)の一連の流れを例題を通じてご体験いただけます。
High temperature processes are of vital importance in a number of industries, including cement, chemical, glass, metallurgy, refining and steel. With so many factors affecting the operational efficiency to consider, the stakes are pretty high for engineers to deliver a safe, reliable, efficient and environmentally friendly operation. That is why computational fluid dynamics (CFD) and reaction kinetic simulations of combustion processes to design systems are being increasingly utilized. They not only give the necessary insight into the complex physics but also help to significantly lower the cost of iterating between trials and prototypes. This is important when it comes to improving the current designs of processes and equipment such as gas and coal burners, glass and steel treatment furnaces, process and crude heaters, reformers and dryers and kilns.
Únase a Siemens PLM Software asistiendo a un taller gratuito sobre el desarrollo virtual y fabricación de productos de vanguardia para la industria naval, centrado en la simulación de CFD y la exploración multidisciplinar de diseño para aplicaciones navales. En este evento educativo, demostraremos cómo las herramientas automatizadas y robustas de simulación y desarrollo se utilizan cada vez más como una alternativa rentable a las pruebas físicas. Aprenda cómo la simulación ayudará a evaluar y mejorar los diseños con el fin de reducir las necesidades energéticas del buque y sus impactos...
My 6-year old son entered my office when I was working on the video below. He looked at it with amazement and asked me “Oh! Mummy, is that real fire?!” I stopped for a second to think and then answered “Kind of. It is real fire, but in the computer. We calculate how the real fire burns.” After a half-impressed and half-puzzled “wow!?” he cheerily jumped out of my office again and probably forgot all about it within 2 minutes.
High-temperature processes involving combustion and reacting flows are commonly encountered in the glass, steel, cement, metallurgy, refining and petro/chemical industries. Achieving these goals requires innovating current designs of processes and equipment such as: Gas and coal burners Glass and steel treatment furnaces Process and crude heaters Reformers Dryers and kilns, etc. Engineers increasingly rely on computational fluid dynamics (CFD) and reaction kinetic simulations of combustion processes to use methodical approaches in designing such systems. With increasing energy efficiency,...
CFD 해석을 통한 변속기 시스템 성능 향상 방안
변속기 시스템은 엔진에서 바퀴로 동력을 전달하기 위한 기어, 베어링 샤프트 등의 부품들로 구성됩니다. 각 구성품들은 운전에 의한 마찰로 발생된 열로 인해 손상되거나 열화 될 수 있습니다. 또한 운전 시 사용되는 오일량이 줄어들 경우 처닝로스가 발생되며 이는 시스템 과열의 잠재적 원인이 되기도 합니다. CFD 해석은 변속기 시스템의 이러한 열에 의해 발생되는 손실을 최소화 하며 성능을 극대화 하기 위한 조건을 구현하는데 이용할 수 있습니다. 또한 변속기 내부의 유동 현상을 예측하며 이를 개선하는데 있어서 시험을 통해 찾기는 매우 어려우며 CFD 해석은 공기와 오일 간의 혼합 정도를 도출하여 최적의 유동 패턴을 찾아내어 시스템의 윤활 성능을 개선시키는데 사용할 수 있습니다. 최근 개발된 다상체적법(VOF)과 중첩 격자(Overset Grids) 기법을 변속기 시스템 해석에 적용함으로써 기어의 움직임을 보다 쉽게 묘사 할 수 있으며 기어와 유체간의 상호작용을 안정적으로 모델링 할 수 있습니다. 이번 동영상에서는 변속기 시스템의 오일 유동과 기어의 작동을 묘사하기 위해 사용된 CFD 해석 기법을 소개합니다.

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