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Showing 1 to 20 of 202 for “"Ducts"”.

  1. Aerodynamic design of annular ducts

    … methods for designing axisymmetric annular ducts having geometries capable of supporting fluid flows with prescribed performance characteristics. Three basic numerical methods of solution are given and are used to obtain results to the known exact solutions for a class of axisymmetric, …

    london-metro Repository record for Aerodynamic design of annular ducts (opens in a new tab)

  2. The secondary flow in rectangular ducts

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1957.

    mit Repository record for The secondary flow in rectangular ducts (opens in a new tab)

  3. High intensity sound in lined ducts

    … of sound in two-dimensional and circular ducts of uniform cross sections in the absence of mean flow. The ducts are lined with a point-reacting acoustic material consisting of a porous sheet or of a perforated plate followed by honey-comb cavities and backed by the impervious walls of the …

    vt Repository record for High intensity sound in lined ducts (opens in a new tab)

  4. Acoustic characteristics of fiberglass-lined circular ducts

    Fiberglass lined circular ducts are circular ducts with an outer spiral metal shell. They are either dual-wall or single-wall. They have been acoustically treated and are intended to be used in heating, ventilation and air conditioning (HVAC) duct systems to reduce the amount of sound that is …

    unlv Repository record for Acoustic characteristics of fiberglass-lined circular ducts (opens in a new tab)

  5. Aeroacoustic computation of sound radiation from ducts

    … and efficiently predict noise radiation from ducts. The solver is based upon a hybrid methodology whereby only the acoustic near-field is solved using the developed numerical solver, with the resultant far-field directivity determined from an integral solution of the Ffowcs Williams - Hawking …

    soton Repository record for Aeroacoustic computation of sound radiation from ducts (opens in a new tab)

  6. Study of sound attenuation in elliptic ducts

    … to study the breakout noise from distorted ducts. It has been long established that distortions in ducts significantly alter the sound radiation when subjected to an internal acoustic field. However, most of the reported work had been confined to very small distortions, and plane-wave …

    uiuc Repository record for Study of sound attenuation in elliptic ducts (opens in a new tab)

  7. Sound transmission through lined ducts in parallel.

    Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1979.

    mit Repository record for Sound transmission through lined ducts in parallel. (opens in a new tab)

  8. Predicting fan noise propagation in aeroengine bypass ducts

    … exploited in application to real engine bypass ducts and their performance is evaluated. These methods are an improvement on current industry standards, allowing realistic duct geometry and flow conditions to be modelled with reasonable computation and time demands. The main focus is on the …

    soton Repository record for Predicting fan noise propagation in aeroengine bypass ducts (opens in a new tab)

  9. Turbulence models for non-circular ducts and channels

    … The focus is on fully-developed flows in closed ducts and open channels of various cross-sectional geometries. Two different turbulence models were evaluated: a complete Reynoldsstress- transport model and a two-equation k-f model used in conjunction with a nonlinear stress-strain relationship. …

    city-london Repository record for Turbulence models for non-circular ducts and channels (opens in a new tab)

  10. The aerodynamics of Formula One car cooling ducts.

    … governing the flow through the sidepod ducts. These contain the heat exchang,ers for cooling the engine and gearbox. The aim of this thesis is to investigate features of the flow through the sidepod ducts, to provide a base of understanding from which further optimisation can be …

    cambridge

  11. Fully Developed and Accelerating Particulate Flow in Circular Ducts

    Made available in DSpace on 2014-12-09T17:13:38Z (GMT). No. of bitstreams: 1 6604311.pdf: 4699324 bytes, checksum: 15d5bb53dd3704d11ff314ced7b6942b (MD5) Previous issue date: 1965

    uiuc Repository record for Fully Developed and Accelerating Particulate Flow in Circular Ducts (opens in a new tab)

  12. Characteristics of Turbulent Flow in Ducts With Temperature Gradient

    Made available in DSpace on 2014-12-05T17:15:08Z (GMT). No. of bitstreams: 1 0007007.pdf: 15304619 bytes, checksum: b3f8ddf8f0806181e837f8eb876dd6c0 (MD5) Previous issue date: 1952

    uiuc Repository record for Characteristics of Turbulent Flow in Ducts With Temperature Gradient (opens in a new tab)

  13. Propagation of sound in attenuating ducts containing absorptive strips

    Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Physics, 1953.

    mit Repository record for Propagation of sound in attenuating ducts containing absorptive strips (opens in a new tab)

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