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The Advancing Layer Mesher uses a pseudo-structured mesh approach to generate layered, primarily structured grids from wall boundaries beyond the boundary layer. This meshing approach is suitable for computations involving bow shocks as depicted in this simulation of the re-entry of the Crew Exploration Vehicle.
A Numerical Investigation of Thermal Conditions and Deformations of the Astronomical Roentgen Telescope
STAR CCM+ was used to perform a numerical investigation of thermal conditions and deformations of the Astronomical Roentgen Telescope. This telescope is equiped with X-ray optical system. One of the major requirements for the telescope is to ensure restricted temperatures and minimal thermal deformations from solar radiation and heating effects of the spacecraft during orbital flight. During the development phase, a detailed computer simulation of the temperature conditions and the thermal deformations of the telescope parts in outer space was carried out using STAR-CCM+.
Integrated Modeling for Aerospace Powerplant System Assessments
The purpose of this presentation is to illustrate the methodology used at Airbus Military to develop simplified models of aircraft systems in order to characterise a particular component that is not following the general behaviour, implementing complex CFD simulation results at the same time. In this metholdology there is a clear interaction between 1D and zero-dimensional models with CFD simulation results. The use of the isolated CFD itself is not feasible due to time constraints, in particular: • Oil system heat transfer and pipe flow is modelled using a 1D suite. In order to cool the oil...
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, 9.6 and 18.4 at angles of attack from -2°- 45°. Reference M. H. Bertram, P. E. Everhart ‘An experimental study of the pressure and heat-...
CHT Analysis of Rotor-Stator System including Radiation
Increasingly “life-time prediction” is an important focus of the turbocharger development process. With this in mind, as a consequence of the high thermo-mechanical loads to which the turbocharger system is exposed, the turbine impeller is a critical component. Conjugate Heat Transfer (CHT) simulation is performed for a stationary, high-load operation point of a diesel engine. The CHT model includes both the flow through the turbine volute and the flow through the turbine impeller domain including the gap between backside of impeller and heat shield. Gas leakage is taken into account as it...