Last edited by Arataur
Sunday, August 2, 2020 | History

4 edition of A fan design that meets the NASA aeronautics noise goals found in the catalog.

A fan design that meets the NASA aeronautics noise goals

A fan design that meets the NASA aeronautics noise goals

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  • 26 Currently reading

Published by NASA Glenn Research Center in [Cleveland, Ohio .
Written in English


Edition Notes

StatementJames Dittmar ... [et al.].
SeriesNASA/TM -- 2003-212322., NASA technical memorandum -- 212322.
ContributionsDittmar, James H., NASA Glenn Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL17635036M
OCLC/WorldCa57205792

  In addition to design and building, this Low Boom Flight Demonstration (LBFD) phase of the project also will include validation of community response to the new, quieter supersonic design. NASA’s year New Aviation Horizons initiative has the ambitious goals of reducing fuel use, emissions and noise through innovations in aircraft design.   NASA charges toward greener aviation with novel concepts by NASA NASA research teams have gotten the go-ahead to explore five big ideas .

  The company expects to reach Critical Design Review—after which the design is fixed and construction begins—in September , with first flights anticipated in The first year or two will be devoted to baseline testing: Proving the new airplane can fly, carefully measuring its subsonic noise, and comparing it to a NASA F/A’s Author: Zach Rosenberg.   Both FAA and NASA have set noise reduction goals. This congressionally requested report on aviation noise addresses (1) FAA's and NASA's R&D plans for addressing aviation noise and the extent to which they are aligned and (2) FAA's and NASA's noise reduction goals and the likelihood that these goals will be achieved.

NASA Aeronautics Education Products and Standards Alignment Future Flight Design National Standards Grades 3 – 5 Science. Source: National Standards Science Literacy The fan design considers aerodynamic, acoustic performance, and structural considerations for a balanced, optimized design that can be tailored to the customer's specifications and priorities. An interactive design process is utilized to iterate on a design that will meet performance goals and integrate smoothly with the vehicle and powerplant.


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A fan design that meets the NASA aeronautics noise goals Download PDF EPUB FB2

A fan concept was previously identified that would meet the NASA aeronautics goal of a 20 EPNdB reduction in aircraft noise. This was a 2-stage fan with a pressure ratio of and a ft/sec.

Get this from a library. A fan design that meets the NASA aeronautics noise goals. [James H Dittmar; NASA Glenn Research Center.;]. The NASA Glenn Research Center has a wealth of experience in Levitated Ducted Fan technology through the Fundamental Aeronautics Program.

The goals of the program include improving aircraft efficiency, reliability, and safety. This concept integrates numerous advanced technologies into a revolutionary aeropropulsion system architecture.

at the end of the ERA study and to determine a technology roadmap that could reduce the noise of the HWB toward the NASA Far Term noise goal. This framework of the study has several guidelines. This is an exploratory, pathfinding study focused on noise reduction technology and design features of the aircraft and nacelle.

These proposed changesFile Size: 2MB. Preliminary fan design for a functionally silent aircraft has been performed with noise reduction as the primary goal. For such an aircraft the fan design must, in addition to delivering low cruise fuel burn, enable low jet and fan source noise during by: 8.

National Aeronautics and Space Administration Objective: to determine if aircraft engine design and analysis techniques for performance and low noise are applicable to cooling fans Rolls-Royce Trent fan for the A Aircraft engine fan design goals: • efficiency • durability •.

NASA/TM— 2 Velocimetry was used by Estevadeordal, et al.5 to map the flow field of a forward swept automotive fan to study the aerodynamics. Wang and Huang6 is another example of fan inlet modifications to reduce noise.

This list is by no means complete. Researcher Rick Bozak inspects fan blade tips on a rotor installed in a test facility at NASA : Kelly Heidman. N+3, future aircraft designs, aircraft noise, chevrons, decibels, acousticsAuthor: Lillian Gipson: Nasa Hq. Instead, it is selected in this study because it represents the “low-noise corner” of the design trade space, noting once again that meeting all of the NASA goals simultaneously may not be possible.

Method of Analysis The low-noise propulsion system singled out from Ref. 5 for analysis of the noise goal is comparable in thrust. Fold the fan in half. Glue the inside of the fold together to create a small fan section.

Repeat steps three through seven with the other two printouts. Now you have three small fans. Glue the first section to your popsicle stick with the fold of the fan touching the top of the popsicle stick.

Glue the next fan section on top. Predicated on simplistic models of the flow and fan geometry, V has been proven useful in studying rotor/stator interaction noise. When you need to design a quiet fan stage, tone noise trends from V can help you make smart choices for important parameters like blade/vane count, rotor/stator spacing, and stator orientation.

Aeronautics – NASA-MIT Collaboration Could Transform Aircraft Design as We Know it. Think about this: With just a 1% improvement in the fuel efficiency of commercial aircraft, the airline industry could save millions of dollars and dramatically reduce human-produced greenhouse gas emissions.

NASA participation in the annual Supercomputing conference taking place in Salt Lake City, UT, USA from NovemberReduction of overall aircraft noise levels is a strong component of the design of next-generation subsonic and supersonic aircraft.

In order to reduce noise, the underlying physics of the noise-generation mechanism. Pratt & Whitney has developed a Broadband Fan Noise Prediction System (BFaNS) for turbofan engines. This system computes the noise generated by turbulence impinging on the leading edges of the fan and fan exit guide vane, and noise generated by boundary-layer turbulence passing over the fan trailing : National Aeronautics and Space Administration (NASA).

NASA has developed tools to computationally simulate aircraft noise that can be used during conceptual design to help produce quieter, less annoying configurations. Here are. In response to NASA SBIR topic A Quiet Performance – Propulsion Noise Reduction Technology, the team of Techsburg, AVEC, and Ampaire proposes implementation and design application of a low-order noise modeling tool for installed ducted fan-rotor aerodynamic and acoustic analysis.

Named the “Installed Ducted-Fan Noise Model” (IDFNM. NASA has some pretty lofty goals for the future of commercial aviation, and in working with some of the aircraft industry's biggest players this past year, the space agency is hoping to create.

NASA - National Aeronautics and Space Administration Decem In an effort to quiet the sonic boom they produce, our researchers are using a special camera system, a unique filter & the Sun to observe shockwaves generated by aircraft flying faster than the speed of sound.

The supersonic demonstrator, dubbed Quiet SuperSonic Technology (QueSST), will start with a detailed design by aerospace behemoth Lockheed Martin under a $20 million NASA contract. The design phase will last approximately 17 months, followed by another competition to actually build the aircraft, with a first flight expected in the early : Zach Rosenberg.

Series was designed to cover groups of books generally understood as such (see Wikipedia: Book series). Like many concepts in the book world, "series" is a somewhat fluid and contested notion. A good rule of thumb is that series have a conventional name and are intentional creations, on the part of the author or publisher.

For now, avoid. The X-plane’s configuration will be based on a QueSST design that Lockheed Martin developed in in partnership with NASA, and which completed testing in a.

This topic includes tools and technologies that contribute to meeting metrics derived from a definitive set of Technical Challenges responsive to the goals of the National Aeronautics Research and Development (R&D) Policy and Plan, the National Aeronautics R&D Test and Evaluation (T&E) Infrastructure Plan (), and the NASA Aeronautics.