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Saturday, August 1, 2020 | History

4 edition of Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing found in the catalog.

Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing

Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing

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Published by National Aeronautics and Space Administration, Lewis Research Center, National Technical Information Service, distributor in [Cleveland, Ohio], [Springfield, Va .
Written in English

    Subjects:
  • Ice formation,
  • Wings,
  • Navier-Stokes equation,
  • Contamination,
  • Aircraft icing,
  • Computational fluid dynamics,
  • Aerodynamic characteristics

  • Edition Notes

    Other titlesNavier Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing.
    StatementJ. Chung ... [et al.].
    SeriesNASA/TM -- 1999-208897., NASA technical memorandum -- 208897.
    ContributionsChung, J., Lewis Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17581874M
    OCLC/WorldCa41519798

    A fixed-wing aircraft's wings, horizontal, and vertical stabilizers are built with airfoil-shaped cross sections, as are helicopter rotor blades. Airfoils are also found in propellers, fans, compressors and are also airfoils, and the underwater surfaces of sailboats, such as the centerboard and keel, are similar in cross-section and operate on the same principles as airfoils. The Navier–Stokes existence and smoothness problem concerns the mathematical properties of solutions to the Navier–Stokes equations, a system of partial differential equations that describe the motion of a fluid in space. Solutions to the Navier–Stokes equations are used in many practical applications. However, theoretical understanding of the solutions to these equations .

    Unstructured Grid Navier-Stokes Code for Predicting Aircraft Performance Rick Hooker, Aerodynamics Lockheed Martin Aeronautics Company - Marietta AIAA CFD Drag Prediction Workshop June , Anaheim, CA. The Steady flow simulation to selected the delta wing model for different angles of attack in the Maher law of flow field changes with the angle of attack is h the FLUENT simulation,The variation tendency of coefficient of lift and drag in the different angle of attack is r reveals the change rule of Maher number, pressure, velocity and other Author: Wei Long, Zai Shuai Ling, Zhen Dang.

    Navier-Stokes Equations: Theory and Numerical Analysis focuses on the processes, methodologies, principles, and approaches involved in Navier-Stokes equations, computational fluid dynamics (CFD), and mathematical analysis to which CFD is grounded. The publication first takes a look at steady-state Stokes equations and steady-state Navier-Stokes Author: Roger Temam. Currently aircraft certification and other tests use various means to simulate ice accretion, many of which are not well documented. This research will identify the critical physics for ice accretion aerodynamics and propose simulation methods based on an understanding of the dominant ice shape/flowfield features.


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Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing Download PDF EPUB FB2

Navier-Stokes Analysis of the Flowfield Characteristics of an Ice Contaminated Aircraft Wing AIAA ICOMP J. Chung Institute for Computational Mechanics in Propulsion Lewis Research Center, Cleveland, Ohio Y.

Choo, A. Reehorst, M. Potapczuk, and J. Slater Lewis Research Center, Cleveland, Ohio Prepared for theCited by: 1. Navier-Stokes Analysis of Flowfield Characteristics of an Ice-Contaminated Aircraft Wing.

Ice Accretion Effect on the Aerodynamic Characteristics of KC by: 8. DOI: / Corpus ID: Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing @inproceedings{ChungNavierStokesAO, title={Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing}, author={Joongkee Chung and Yung.

Navier-Stokes Analysis of the Flowfield Characteristics of an Ice Contaminated Aircraft Wing Article (PDF Available) in Journal of Aircraft 37(6) February with 49. Get this from a library. Navier-Stokes analysis of the flowfield characteristics of an ice contaminated aircraft wing.

[J Chung; Lewis Research Center.;]. Journal of Aircraft; Journal of Guidance, Control, and Dynamics; Navier-Stokes Analysis of Flowfield Characteristics of an Ice-Contaminated Aircraft Wing. James Chung, Andrew Reehorst, Yung Choo, Mark Potapczuk and; John Slater; Journal of Aircraft.

et a i, “Navier-Stokes Analysis of the Flowfield Characteristics o f an Ice Contaminated Aircraft Wing”, (). Fundamentals o f Aerodynamics”,Author: Rafael Araujo da Silveira.

geometry preparation to Navier-Stokes (NS) flow simulation. Another problem relevant to aircraft icing is the use of CFD as a component of the ice accretion prediction process.

Currently, the rate of ice accretion is estimated from water droplet trajectory and collection efficiency calculationsFile Size: 2MB. Computed steady and unsteady solutions to the Reynolds-averaged Navier–Stokes equations for use in industrial design problems, ranging from airfoil characteristics, flow around an isolated wing, to full aircraft configurations in cruise, all illustrate in Cited by: Navier-Stokes Equations, Incompressible Flow, Perturbation Theory, Stationary Open Channel Flow 1.

Introduction The classical Navier-Stokes equations, whichwere formulated by Stokes and Navier independently of each oth-er in andare analyzed with the perturbation theory, which is a method for solving partial differential equations [1].File Size: 2MB.

Through solving the Navier–Stokes (N–S) equations of the flowfield around the research object with ice on it, the flowfield information and aerodynamic forces. The two-dimensional, compressible, mass-averaged Navier-Stokes equations are used to investigate flows about a typical circulation control airfoil.

The governing equations are solved using the implicit approximate-factorization algorithm of Beam-Warming with a modified algebraic eddy viscosity model. Results are compared with experimental data, and excellent Cited by: 9. Two types of ice, i.e., mixed ice and glaze ice were considered to study their effects on lift and drag characteristics of the aircraft.

The test results showed that for both types of ice accretions, ice accretions brought performance degradations to the aircraft with degradations in lift and increases in by:   Abstract.

The effect of the simulated ice accretion on the dynamic distortion of a diffusing S-duct inlet is numerically investigated. The LES turbulence model is used to simulate the unsteady flow separation and vortex shedding from the duct curvatures and ice accretion. The numerical methods for unsteady-flow solutions are validated with Cited by: 2.

The effect of a simulated glaze ice accretion on the flowfield of a semispan, reflection-plane, rectangular wing at Re = million and M = was investigated.

A laser Doppler velocimeter was used to map the flowfield on the upper surface of the model in both the clean and iced configurations at $\alpha$ = 0, 4, and 8 degrees angle of by: contamination are replicated in f at altitude and complemented b runs.

A roughness model is intr simulate arbitrary wing contamina unsteady Navier-Stokes analysis modified turbulence models will si combined effects of roughness, and ground proximity. Predicti unsteady flow separation on airpl in ground effect will b. ay to ansport ethodo-study. However, the wing has two other productions, namely drag force or drag (D) and nose-down pitching moment (M).

DELTA WING:. The delta wing is a wing shaped in the form of a triangle. The delta wing suffered from some undesirable characteristics, notably flow separation at high angle and high drag. Fluid Mechanics, SG, HT Septem Exercise 5: Exact Solutions to the Navier-Stokes Equations I Example 1: Plane Couette Flow Consider the flow of a viscous Newtonian fluid between two parallel plates located at y = 0 and y = h.

Navier-Stokes Analysis of a High Wing Transpo~~ High-Lift Configuration With Externally Blown Haps. Jeffrey P. Slotnick, Michael Y. An, Stephen J. Mysko, and David T. Yeh The Boeing Cornpu~zy Stuart E. Rogers and Karlin Roth NASA Ames Research Center.

David Baker and S. Nash MCAT, Inc. @article{osti_, title = {Navier--Stokes solutions of the flowfield in an internal combustion engine}, author = {Griffin, M D and Anderson, Jr, J D and Diwakar, R}, abstractNote = {The flowfield inside the cylinder of a reciprocating internal combustion engine is calculated by solving the complete Navier--Stokes equations by use of a time-dependent finite-difference technique.

The compressible versions of the Navier-Stokes equations plus the continuity equation encompass almost the whole of aerodynamics. To be sure, applications involving combustion or rarified flow would require additional chemical and phys­ical principles, but most of aerodynamics is contained within the Navier-Stokes equations.DFS computes best possible solutions to Euler’s equations as Navier-Stokes equations with vanishing viscosity.

The lift and drag of a wing, or a car, is computable to within the experimental accuracy of a few percent. The story is told in the book Computational Turbulent Incompressible Flow. Scale Invariance.Solving the Equations How the fluid moves is determined by the initial and boundary conditions; the equations remain the same Depending on the problem, some terms may be considered to be negligible or zero, and they drop out In addition to the constraints, the continuity equation (conservation of mass) is frequently required as well.