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In STAR-CCM+® v11.04, the highly regarded (extended) pom-pom adds to our list of viscoelastic constitutive models. Best suited for highly branched polymers like low density polyethylene (LDPE), it is able to most accurately predict viscoelastic responses for elongational flows commonly encountered in industrial processing.
Fluid-Structure Interaction (FSI) is the study of thermo-mechanical interactions of a fluid and a solid structure. FSI modeling for implant device design is taking on even greater importance in the current medical device environment, as producing better designs, faster, is imperative in this industry to reduce operating costs and introduce necessary potentially live-saving devices to market.
Vehicle water wading capabilities refer to vehicle functional part integrity, (engine under-tray, bumper cover, plastic sill cover, etc.) when travelling through water. Wade testing involves vehicles being driven through different depths of water at various speeds. The test is repeated and under-body functional parts are inspected afterwards for damage/leakage. The lack of computer aided engineering (CAE) capability for wading equates to late detection of failure modes, which inevitably leads to expensive design change. Critically, this can potentially affect program timing. As a result, it...
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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。
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+를 이용한 소음 해석 기술
지난 수 십 년간 인류는 여러 산업 분야에서 눈부신 기술 발전을 이룩하였습니다. 이러한 기술 발전은 우리에게 많은 혜택을 안겨 주었지만, 부정적인 측면도 발생 하게 되었습니다. 그 중 환경오염 문제 해결에 대한 요구가 증가하고 있고 특히 소음 문제는 근래에 사회적 이슈로 대두 되고 있습니다. 이러한 소음 문제를 해결하기 위해서 최근에 컴퓨터를 이용한 해석 기술이 많이 이용되고 있습니다. 향상된 알고리즘과 계산 능력으로 인해 유동 소음 해석 분야에서도 시뮬레이션을 통한 소음 저감 노력이 활발하게 진행 되고 있습니다. 특히 소음의 발생 매커니즘과 음의 전파를 해석하기에 더욱 수월해졌습니다. 이번 동영상에서는 STAR-CCM+를 사용한 소음 해석 기법 소개 및 다양한 적용 사례를 통해 실제 제품 개발에 응용하기 위한 소음 해석 기법에 대한 이해를 높이고자 합니다. 주요 발표 내용은 다음과 같습니다. 주요 내용 소음 해석 소개 Direct Noise Calculations Aeroacoustics in STAR-CCM+ Ffowcs-Williams & Hawkings Acoustic Wave Solver Surface FFT
At this year's AIAA SCITECH annual conference, I sat down with the editors of Aerospace America to talk about the future of CFD analysis in the aerospace and defense market. Predicting the future of CFD is the subject of intense debate. The recent publication of the NASA led CFD Vision 2030 study attempted to define the key challenges that face the industry over the next 15 years. In the report, the authors identified several obstacles to wider adoption of CFD in the aerospace industry: Limited Funding : NASA investment in basic research has declined significantly over the last few years...
The Next Big Thing in Hydrodynamic Optimization of Ship Hulls
Still water resistance has been the traditional way of optimizing ship hulls since the time of William Froude. In the last few years, hydrodynamic optimization of hulls has been carried out with consideration to their operating profiles as opposed to design condition alone. However, ships sail in waves most of the time, so how can the resistance of the hull in waves be improved? The answer is positive: the potential, especially in short waves, is far from being negligible. On the other hand, optimization for minimization of added resistance in waves is far from trivial, due to the difficulty...