Low Mach number Model
Modelling, asymptotic analysis and simulation of the gas dynamics in a chimney
... incompressible model. In combination with the buoyancy as driving force a model with variable density is ...density low Mach number model (see [–] for the non isentropic or ...
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Study of a low Mach nuclear core model for single-phase flows
... a low Mach number flow when the situation is nominal or in some accidental ...a low Mach number model (called Lmnc for Low Mach Nuclear Core model ) ...
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On a low Mach nuclear core model
... a low Mach number model – named Low Mach Nuclear Core (LMNC) model – that is able to model a nuclear core when the flow is at low Mach ...LMNC ...
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Aeroacoustic computation of fluid-structure interaction problems with low Mach numbers
... The simulation of noise creation and propagation is of a quite big importance today due to increasing number and power of noise producing devices. Good examples of ex- ternal and internal problems with ...
6
Study of a Depressurisation Process at Low Mach number in a nuclear reactor core
... Abstract. This paper deals with the numerical treatment of two additional terms in the Lmnc-system modelling the coolant in a nuclear reactor core. The latter model was derived and studied by the authors in ...
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GUMICS 4 analysis of interplanetary coronal mass ejection impact on Earth during low and typical Mach number solar winds
... In the ionosphere, the cross-polar cap potential value is de- pendent on the grid resolution, with higher resolution yield- ing higher polar cap potential values (see Figs. 6e and 7e). In comparison with the PCI (Ridley ...
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Shock Wave Mitigation by Air Plasma Deflector
... tunnel model, and on the Mach number and the def- lection angle of the incoming flow ...tunnel model and the Mach number of the incoming flow are fixed, an on-board plasma ...
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A Conservative Pressure Correction Method on Collocated Grid for Low Mach Number Flows
... (WALE) model suggested by Nicoud and Ducros ...dynamic model. In WALE model subgrid scale viscosity accounts for effect of rotation rate and strain rate of the smallest ...This model has ...
9
Numerical Investigations on Flow Characteristics over Backward Facing Sharp Edge Step through Hybrid RANS LES
... numerical model for examining the fluid flow behaviours (pertaining to density, vorticity and Mach number distributions) over a backward facing sharp edge step deploying the hybrid ...
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Reduced order models for thermally coupled low Mach flows
... zero Mach number limit Navier–Stokes ...of model reduction along with an explanation of the POD compression technique for the construction of the ...
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3D vortex simulation of flow in an opposed-piston engine
... A model, based on the transport of the (vorticity/density) variable, has been developed for the random vortex- boundary element simulation of low Mach number compressible flow in ...
12
Aerodynamic Simulation of Low Mach Turbulent Jets with Lattice Boltzmann Models
... gas model was proposed in 1986 by Frisch, Hasslacher and Pomeau (FHP) ...average number of particles or particle distribution functions instead of Boolean variables evolution, which reached a new ...
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The Impact of Altitude, Mach Number And Relative Humidity Towards Aircraft Engine Emission
... to model the engine at design ...of low pressure turbine efficiency and fan ...engine model performance simulation is accurate at the design ...
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Modelling of natural convection flows with large temperature differences : a benchmark problem for low Mach number solvers Part 1, Reference solutions
... for low Mach number flows, but implements the full compressible form of the Navier-Stokes equations in order to deal with property dependence due to large temperature ...cannot model sound ...
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Direct Numerical Aeroacoustics for low Mach numbers using one Unstructured Grid
... can model the physical properties quite well, but suffer under numerical complexities for Mach numbers 0 < M < ...this Mach number ...
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2D Numerical simulation of a low mach nuclear core model with stiffened gas using freefem++
... The modelling of nuclear reactors is hard to achieve since it requires the coupling of several multi-scale multi- physics problems [6]. Indeed, a reactor is characterized by a large number of systems corresponding ...
10
Low mach number CFD for wind turbine analysis
... turbulence model for closure. A well-known 2D field model is the one by Ainslie [6] , which is used in the WindPro, OpenWind, WindFarmer and FLaP ...3D model WAKEFARM. It was developed by ECN, based ...
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Effect of Mach number on the structure of turbulent spots
... In high-Mach-number boundary layers there can be additional inviscid modes (Mack 1977). The mechanism for instability involves reflection of acoustic waves between the solid surface and the sonic line. At ...
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Preliminary results for the study of the godunov scheme applied to the linear wave equation with porosity at low mach number
... a low Mach number, which means that the flow speed is small with respect to the sound ...a low Mach model – that is incompressible when we neglect the heat sources – and related ...
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Influence of Micro Jets on the Flow Development in the Enlarged Duct at Supersonic Mach number
... From numerical simulation, the laminar flow in a sudden augmented pipe subjected to a uniform suction speed has been analyzed [16]. Different numerical methods have been used to solve and account the viscous effects of ...
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