• Engineering simulation impacts a wide range of external aerodynamic applications such as fuel economy, maneuverability and noise. With demanding schedules, shrinking resources and a competitive market, engineers need to obtain accurate results as quickly and efficiently as possible. This presentation will cover best-practice techniques to model a range of aerodynamic conditions for aerospace applications. You will learn which physics models, numerical...
  • The AIAA Propulsion Aerodynamics Workshop (PAW) brings together CFD users from industry, government and academia with the goal of developing best practices for the simulation of propulsion-specific flows. In its two iterations, the workshop has focused on two flows, the serpentine duct (s-duct) and the nozzle. For the s-duct, we examine the role of mesh and turbulence models for cases with and without vortex generators to understand how to best tackle the...
  • Aerodynamic Validation Studies for Space & Defense Applications
    Before a CFD code is applied in a design or diagnostic environment, an adequate level of testing and validation should first be completed to develop confidence in the level of performance and accuracy of the code. In addition, the accuracy, reliability and utility of a code must be determined for the specific type of application of interest in order to establish credibility and confidence in its resultant data. A verification/validation study of the STAR-...
  • TLG Aerospace was tasked by a customer to provide unsteady buffet loads on a rocket with 'hammer-head' configuration at transonic Mach numbers. Accurately capturing the physics of time-unsteady bluff body shedding, recirculation and reattachment required a large scale application of the STAR-CCM+ DES flow solver. As part of the customer analysis, validation work was done against NASA wind tunnel data on a similar geometry. The NASA report published rocket...
  • Airbus on Advanced Modeling and Simulation
    During this one hour event Martin Schmid from Airbus discusses how shorter development cycles are the key for competitive advantage in the aircraft industry. He will investigate how achieving this competitive advantage requires the analysis of system performance and reliability at an early stage to reduce the risk of late equipment changes with impact on the schedule. Specifically Martin addresses how quality computational fluid dynamics (CFD) is required...
  • High angle of attack re-entry simulation of the NASA X-34 with adaptive meshing for off-body shock capture: STAR-CCM+ offers a comprehensive range of efficient solvers for flow regimes from low speed up to hypersonic (whilst the fluid remains a continuum). Image courtesy of TLG Aerospace.
  • Simulation of Space Shuttle re-entry.
  • A wide range of flow regimes can be simulated using STAR-CCM+, including inviscid, laminar, turbulent (RANS, LES, DES), transition modeling. incompressible through to hypersonic. Visualized here are the Mach contours on a Scud missile.
  • STAR-CCM+ Hypersonic Validation of a 70° Sweep Slab
    One of the difficulties in performing hypersonic aerodynamic performance prediction is determining accurate lift and drag profiles. This presentation illustrates the comparison of wind tunnel data for a 70° sweep slab delta wing to STAR-CCM+ predictions at various hypersonic Mach numbers. These comparisons include pressure distribution on the surface, heat transfer coefficients and forces / moments on the model. The Mach numbers investigated are Mach 6.8,...

STAR-CCM+는 연결 흐름과 분리 흐름 두 개의 흐름 체제를 활용할 수 있습니다. CD-adapco는 압축이 가능한 흐름에 대하여는 연결 흐름 모델을 추천하는데 거기에는 옵션인 AUSM+ invisic 플럭스 방식이 포함됩니다.

연결 흐름 모델은 시간 진전 접근 방식을 사용하여 질량과 운동량에 대한 보존 방정식을 풀게 됩니다. 이는 묵시적 또는 명시적 의사 시간 적분 중 하나를 사용할 수 있습니다.

분리 흐름 모델은 어느 정도 압축이 가능한 흐름에 대하여 사용될 수 있는데 이는 솔루션에 대한 더욱 빠른 근사치입니다. 이 모델은 흐름 방정식을 개별적으로 풀게 됩니다.

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