Direct Numerical Simulation (Engineering)
Direct numerical simulation of a turbulent flow over an axisymmetric hill
... and numerical studies have been carried out for a turbulent flow over an obstacle, particularly a curved geometry such as a hill ...and numerical algorithm has made it possible to study this complex flow by ...
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Compressible effects on a temporal direct numerical simulation
... incompressible case, the three dimensional vizualisation of surfaces of constant vorticity show a highly two dimensional structure. This one varies sinusoidally in the spanwise direction. The initial three dimensional ...
9
Direct numerical simulation of an aerofoil at high angle of attack and its control
... and numerical studies have contributed in elu- cidating the main physical mechanism that come into play on the flow behaviour when the angle of attack undergoes a dynamic change, to our knowledge the only high ...
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Direct numerical simulation of the flow around an aerofoil in ramp-up motion
... and numerical studies have contributed in elucidating the main physical mechanism that comes into play on the flow behaviour when the angle of attack undergoes a dynamic change, to our knowledge the only high ...
18
Direct numerical simulation of intermittent turbulence under stably stratified conditions
... Abstract. In this paper, we simulate intermittent turbulence (also known as bursting events) in stably stratified open- channel flows using direct numerical simulation. Clear sig- natures of this ...
25
Direct numerical simulation of supersonic turbulent flows around a tandem expansion compression corner
... combining numerical simulations and experimental ...high-fidelity numerical methods such as direct numerical simulation (DNS) and large-eddy simulation (LES) would be necessary ...
40
Direct numerical simulation of a decelerated wall bounded turbulent shear flow
... A fully developed turbulent channel flow is subjected to a mean strain that approxi- mates that in a spatially developing adverse-pressure-gradient (APG) boundary layer. This is done by applying uniform irrotational ...
18
Direct Numerical Simulation of a Jet Issuing from Rectangular Nozzle by the Vortex in Cell Method
... Direct numerical simulation of a jet issuing from a nozzle having a rectangular cross-section is conducted. The vortex in cell (VIC) method, of which computational accuracy was heightened by the ...
10
Study on Direct Numerical Simulation of Two dimensional Turbulence
... contrast, numerical simulations seem to be easier to ...by direct numerical simulation is uesd with initial and boundary conditions of ...
5
Direct numerical simulation of 'short' laminar separation bubbles with turbulent reattachment
... Direct numerical simulation of the incompressible Navier–Stokes equations is used to study flows where laminar boundary-layer separation is followed by turbulent reattachment forming a closed region ...
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Direct numerical simulation of turbulent trailing edge flow with base flow control
... accurate simulation using the conventional Reynolds-averaged Navier – Stokes approach because of the complexity of the ...computedusing direct numerical simulation ...
9
Direct numerical simulation of the passive heat transfer in a turbulent flow with particle
... Abstract. Turbulent non-isothermal fully developed channel flow with solid particles was investigated through Direct Numerical Simulation combined with the point-particle approach. The focus was on ...
6
Direct numerical simulation of noise suppression by water injection in high speed flows
... [direct numerical simulation] studies have advanced to the extent of predicting radiated noise levels from both high subsonic and supersonic jets, it would be of great interest to see if such ...
11
Experimentation and direct numerical simulation of self-similar convergent detonation wave
... We calibrated a model for the compositions X1 and T2 based on the wide range EOS/rate law model proposed by Wescott et al. [3]. The reactive equation of state is the ideal mixture of an unburnt phase (which reproduces ...
6
Direct numerical simulation of bubble/wall and droplet/droplet collision with a motifation for lubrication
... Luckily more and more accurate and efficient schemes are made to solve these flows. We will use a volume of fluid method to solve a one particle bubble flow, and a two droplet flow. Extra challenges can be present in two ...
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Discussion of Direct Numerical Simulation Method for Supercritical Carbon Dioxide Jet Flow
... Based on the above content, a kind of direct numerical simulation method suitable for supercritical carbon diox- ide jet flow is discussed in this paper. Supercritical car- bon dioxide jet flow ...
8
Evaluation of Interfacial Forces and Bubble-Induced Turbulence Using Direct Numerical Simulation.
... the simulation of single-phase turbulent flows in a channel at relatively low Reynolds numbers [38] (about 180 based on the friction velocity and channel half-width which corresponds to about 11,200 Reynolds ...
222
Direct numerical simulation of turbulent flow over a backward facing step
... The numerical code, called Semtex, used in this study was developed by Hugh Blackburn from Monash University, ...of simulation stabilisation at high Reynolds ...
178
Direct Numerical Simulation of the Airfoil Segment's Flutter and its Effect on the Aerodynamic Force
... The last chapter of the article is devoted to numerical study of stability of an airfoil which takes into account unsteady motion near oscillating segment. Dynamic system of fluid- structure interaction is ...
11
Direct Numerical Simulation of Bubble Wall Interactions
... Figure 3 shows the bubble trajectories for the considered test cases. The trajectories are calcu- lated by following the center of mass during the simulation. The dashed lines represent the bounds given by the ...
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