4 edition of Three-dimensional numerical simulation of gradual opening in a wave rotor passage found in the catalog.
Three-dimensional numerical simulation of gradual opening in a wave rotor passage
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va
Written in English
|Other titles||Three dimensional numerical simulation of gradual opening in a wave rotor passage.|
|Statement||Louis M. Larosiliere.|
|Series||NASA contractor report -- 191157., NASA contractor report -- NASA CR-191157.|
|Contributions||United States. National Aeronautics and Space Administration.|
|The Physical Object|
The three-dimensional transition to turbulence in the transonic ﬂow around a NACA wing of constant spanwise section has been analysed at zero incidence and within the Reynolds number range [, ], by performing the direct numerical simulation. Numerical simulation of waves generated by landslides using a multiple-ﬂuid Navier–Stokes model Stéphane Abadiea,⁎, Denis Morichona, Stéphan Grillib, Stéphane Glocknerc a Université de Pau et des Pays de l'Adour, Laboratoire de Sciences Appliquées au Génie Civil et au Génie Côtier JE, Allée du parc Montaury, Anglet, France b Department of Ocean Cited by:
This paper describes numerical analysis of the impulse turbine with fixed guide vanes, a high performance bi-directional air turbine having simple structure for wave energy conversion. A 3- dimensional incompressible viscous flow numerical anal ysis based on the full Reynolds-averaged Navier-Stokes equations was made to investigate the internal Cited by: 5. Figure 9: evolution of breaking (full 3-D view) for Figs. results Figure a: vorticity in the plane y = m for different non- dimensional times t’ in Figs. results. Figure b: vorticity in the plane y = m for different non- dimensional times t’ in Figs. results. Figure wave collapsing and beginning of the swash zone.
26th Symposium on Naval Hydrodynamics Rome, ITALY, September The numerical simulation of ship waves using cartesian-grid and volume-of-ﬂuid methods Douglas G. Dommermuth1, Thomas T. O’Shea1, Donald C. Wyatt1, Mark Sussman2, Gabriel D. Weymouth3, Dick K.P. Yue3, Paul Adams4, and Randall Hand4 1Naval Hydrodynamics Division, Science File Size: 2MB. This paper presents three-dimensional (3D) direct numerical simulations (DNS) of flow past a circular cylinder over a range of Reynolds number (Re) up to The gradual wake transition process from Mode A* (i.e. Mode A with large-scale vortex dislocations) to Mode B is well captured over a range of Re from to The.
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Get this from a library. Three-dimensional numerical simulation of gradual opening in a wave rotor passage. [Louis M Larosiliere; United States.
National Aeronautics and Space Administration.]. Validation of a Numerical Quasi-One-Dimensional Model for Wave Rotor Turbines With Curved Channels Stefan Tüchler, Stefan Tüchler. Powertrain and Vehicle Research Centre, Department of Mechanical Engineering, University of Bath Three-Dimensional Numerical Simulation of Gradual Opening in a Wave Rotor Passage,” : Stefan Tüchler, Colin D.
Copeland. The influence on the flow pattern of the gradual passage opening in the wave rotor is studied on the basis of numerical simulation. It is found that, in most cases, significant volume of the.
A numerical model has been developed at the NASA Lewis Research Center which can predict both the unsteady flow quantities within a wave rotor passage and.
Abstract  We present the results of three-dimensional, nonhydrostatic simulations of internal tides and waves in the South China Sea (SCS) using the SUNTANS model.
Model results accurately predict the observed wave arrival times at two mooring locations in the SCS. Internal wave amplitudes are underpredicted which causes underprediction of internal wave speeds. Three‐dimensional simulation of the mixing of miscible fluids by Rayleigh–Taylor instability is described for density ratios, ρ1/ρ2, in the range to Significant dissipation of density fluctuations and kinetic energy occurs via the cascade to high wave numbers.
Comparison is made with experimental measurements of the overall growth of the mixing zone and of the Cited by: Louis M. Larosiliere has written: 'Three-dimensional numerical simulation of gradual opening in a wave rotor passage' -- subject(s): Gas dynamics Asked in Science.
A three dimensional numerical model of vertical turbulent jet in waves is established by using the nonlinear k - ε turbulence model with VOF method. And a lot of numerical experiments with different wave parameters are carried by: 1. The benefits of wave rotor topping in small ( to kW [ to hp] class) and intermediate ( to kw [ to hp] class) turboshaft engines, and large ( to kN [80, to ,lb f] class) high-bypass-ratio turbofan engines are rotor performance levels are calculated using a one-dimensional design/analysis by: ,24(4) DOI: /S(11) THREE-DIMENSIONAL NUMERICAL SIMULATION OF WAVE SLAM- MING ON AN OPEN STRUCTURE * DING Zhao-qiang, WANG Guo-yu, REN Bing State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, DalianChina, E-mail: [email protected] (Received Cited by: 3.
Three-Dimensional Numerical Analysis of Internal Flow Phenomena 29 2. Fan geometry and design speciﬁcations The diagonal rotor analyzed in this study is widely used in engineering. It was designed by the modiﬁed quasi three-dimensional method.
The design format utilized a streamline curvature to determine the average stream surface by. of the numerical simulation of the flow about pro- peller blades operating with tip speeds in the transonic regime. These results were obtained using an AD1 finite difference procedure to solve the low frequency form of the three-dimensional small disturbance equation.
Expressing the small disturbance equation in terms of novel helical. T1 - Numerical simulation of 3-d wave breaking on breakwater. AU - Nguyen, Danh Thao. AU - Shibayama, Tomoya. PY - /12/1. Y1 - /12/1. N2 - This paper presents a three-dimensional breaking wave model to investigate the spatial and temporal variation of fluid motions under breaking : Danh Thao Nguyen, Tomoya Shibayama.
Introduction. Wave–structure interaction has been the focus of studies in coastal and offshore engineering for decades. Although some of the wave–structure interaction problems can be treated by two-dimensional models (e.g., Liu et al., ), a majority of practical problems require the use of three-dimensional example, to study the stability of piles of an offshore Cited by: Numerical simulation of two dimensional breaking waves past a submerged hydrofoil R.
Muscari, A. Di Mascio (INSEAN, Italian Ship Model Basin:~taly) ABSTRACT A numerical model for the simulation of two- dimensional spilling breaking waves is described. Movies: Lubin and Glockner supplementary movie The generation and evolution of aerated vortex filaments is visualized using the phase function isosurface C =to characterize the free-surface, and isocontours of the axial vorticity calculated in an axis x' tilted 50° from the horizontal axis x (ωx'= s-1 in red and ωx'= s-1 in orange).Cited by: We develop a coupled hydro-morphodynamic numerical model for carrying out large-eddy simulation of stratified, turbulent flow over a mobile sand bed.
The method is based on the curvilinear immersed boundary approach of Khosronejad et al. (Adv. Water Resour., vol.
34,pp. –).Cited by: Abstract. Three-dimensional (3D) wave breaking around bodies of complex geometry has been numerically investigated by use of two types of Navier-Stokes solvers, namely the finite-difference and the finite-volume methods employing rectangular and Cited by: 9.
Three‐dimensional, nonhydrostatic numerical simulation of nonlinear internal wave generation and propagation in the South China Sea Z.
Zhang,1 O. Fringer,1 and S. Ramp2 Received 24 May ; revised 24 January ; accepted 23 February ; published 27 May  We present the results of three‐dimensional, nonhydrostatic. The numerical configuration consisted of an initial rectangular steady flow motion (from the right side of the numerical domain to the left side) with an initial steady velocity, impacting a wall boundary located on the left side of the numerical domain.
The three-dimensional numerical domain (Figure 1) was 5 m long, 1 m high and m wide. Three dimensional analysis of a rotor in forward flight Sanjay R. Mathur Iowa State University Follow this and additional works at: Part of theAeronautical Vehicles Commons,Navigation, Guidance, Control and Dynamics Commons,Space Vehicles Commons, and theSystems Engineering and Multidisciplinary Design Optimization.The Wave equation in 3 dimensions.
We now turn to the 3-dimensional version of the wave equation, which can be used to describe a variety of wavelike phenomena, e.g., sound waves, atmospheric waves, elec-Author: Charles G Torre.The effect of sweep on a transitional separation bubble behind a backward-facing step is investigated using direct numerical simulation (DNS).
The Reynolds number based on step height and free stream component normal to the step, Re α =(HC ∞ cos α)/ν, is kept constant at for sweep angles α between 0° and 60°. Results agree well with two experimental by: