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Saturday, August 1, 2020 | History

3 edition of Design of the wind tunnel model communication controller board found in the catalog.

Design of the wind tunnel model communication controller board

Design of the wind tunnel model communication controller board

  • 341 Want to read
  • 39 Currently reading

Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va .
Written in English

    Subjects:
  • Wind tunnel models.,
  • Controllers.,
  • Wind tunnel tests.,
  • Design analysis.,
  • Application specific integrated circuits.,
  • Computer aided design.,
  • Control systems design.,
  • Communication equipment.

  • Edition Notes

    StatementWilliam C. Wilson.
    SeriesNASA/TM -- 1999-209108., NASA technical memorandum -- 209108.
    ContributionsLangley Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15548384M

      Air temperatures can be varied from sub-ambient to over o C. Figure 1 shows a schematic of a closed loop wind tunnel. In general, closed loop wind tunnels are made with the following sections: 1-Test section. 2-Settling chamber. 3-Contraction area. 4-Diffuser. 5-ÂBlower assembly. 6-Heater/heat exchanger assembly. Figure 1. Schematic of an. Measurement of aerodynamic forces. Air velocity and pressures are measured in several ways in wind tunnels. Air velocity through the test section is determined by Bernoulli's ement of the dynamic pressure, the static pressure, and (for compressible flow only) the temperature rise in the airflow. The direction of airflow around a model can be .

    And the acoustic insulation of the tunnel makes it one of the quietest automotive wind tunnels in the world. At a wind speed of km/h, the tunnel only reaches a sound pressure level of 65 decibels, comparable with TV operated at a reasonable volume or normal speech. The thermal wind tunnel, which will be able to simulate snow in addition to. The ft x 4 ft wind tunnel is a low-speed, low-turbulence open-return wind tunnel. The test section features a ft height and a 4-ft width, across an 8-ft length. The tunnel is driven by a hp electric motor connected to a 5-bladed fan, and it can be operated at speeds up to a maximum Mach number of with a test-section turbulence.

    An aeroelastically scaled model of a wind turbine is described, featuring active individual blade pitch and torque control. The model, governed by supervision and control systems similar to those of a real wind turbine, is capable of simulating steady conditions and transient maneuvers in the boundary layer test section of the wind tunnel of the Politecnico di by: appropriate changes to the wind tunnel speed via a GPIB card connected to the two DC power supplies. The power supplies are connected to a set of DC fans located at the top of the wind tunnel, allowing for variable speed control within the wind tunnel test section [ Hennessey et al. ]. Control System Design.


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Design of the wind tunnel model communication controller board Download PDF EPUB FB2

Design of the Wind Tunnel Communication Controller Model Board William C. Wilson Langley Research Center, Hampton, Virginia National Aeronautics and Space Administration Langley Research Center Hampton, Virginia March boards. This thesis will focus on the design of the prototype of the communication Controller board.

A portion of the communication Controller board is to be used as the basis of an ASIC design. The communication Controller board will communicate between the internal model modules and the external data acquisition computer.

Get this from a library. Design of the wind tunnel model communication controller board. [William C Wilson; Langley Research Center.]. A portion of the communication Controller board is to be used as the basis of an ASIC design.

The communication Controller board will communicate between the internal model modules. A portion of the communication Controller board is to be used as the basis of an ASIC design. The communication Controller board will communicate between the Design of the wind tunnel model communication controller board book model modules and the external data acquisition computer.

This board is based around an Field Programmable Gate Array (FPGA), to allow for reconfigurability. In addition to the FPGA, this board contains buffer Random Access Memory Author: William C. Wilson. NASA/TM Design of the Wind Tunnel Model Communication Controller Board () Cached.

Download Links {NASA/TM Design of the Wind Tunnel Model Communication Controller Board}, year = {}} Share. NASA/TM Design of the Wind Tunnel Model Communication Controller Board. By William C. Wilson.

Abstract. Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important : William C.

Wilson. This book presents current research in the study of wind tunnels, including the design, execution and numerical rebuilding of a plasma wind tunnel with the aim to analyse shock wave boundary layer interaction phenomena; the Mainz vertical wind tunnel facility experimenting on cloud physics and chemistry; an air-conditioned wind tunnel environment for the study of mass and heat flux; using wind Cited by: 8.

MODELING AND CONTROL DESIGN OF A WIND TUNNEL MODEL SUPPORT David A. Howe Control Systems Engineer NASA Ames Research Center Moffett Field, California, USA ABSTRACT The Foot Pressure Wind Tunnel at Ames Research Center is being restored.

The research goals and the specific measurement requirements are discussed, as well as the various space, budget, and power constraints that guide the tunnel design. Design guidelines are provided for the most common wind-tunnel components, including flow conditioners, contraction, test section, diffuser, drive.

This is a great book that can be used as a lab manual for a semester course in Embedded System Design. The LPC microcontroller has an ARM Cortex-M3 core.

The ARM mbed LPC has support including online compiler, a program library, and handbook, which is a complete embedded system development by: A portion of the communication Controller board is to be used as the basis of an ASIC design.

The communication Controller board will communicate between the internal model modules and the external data acquisition computer. This board is based around an FPGA, to allow for reconfigurability.

In addition to the FPGA, this board contains buffer RAM, configuration memory (EEPROM. Through the combination of passive and active load alleviation techniques, this paper presents the design, optimization, manufacturing, and update of a flexible composite wind tunnel model.

In a first step, starting from the specification of an adequate wing and trailing edge flap geometry, passive, static aeroelastic stiffness optimizations for various objective functions have been Author: Johannes K. Dillinger, Yasser M. Meddaikar, Jannis Lübker, Manuel Pusch, Thiemo Kier. Design of wind tunnel temperature and humidity data acquisition system based on CAN/SimpliciTI hybrid network To cite this article: Haiyang Li J.

Phys.: Conf. Ser. View the article online for updates and enhancements. This content was downloaded from IP address on 02/05/ at in many university wind tunnels, and consistent with Marshall’s design criteria. To permit easy access to the screens (for cleaning) and to the inside of the contraction (e.g., for demonstration purposes), the inlet/settling chamber is attached to the contraction via.

The second section of the wind tunnel designed was the contraction cone (figure 2), which proved to be the most difficult section as far as design and materials. The contraction cone's purpose is to take a large volume of low velocity air and reduce it to a small volume of high velocity air without creating turbulence.

Therefore, the design aim of a wind tunnel, in general, is to get a controlled flow in the test chamber, achieving the necessary flow performance and quality parameters.

In case of the aeronautical LSWTs, the requirements of those parameters are extremely strict, often substantially increasing the cost of by: used a wind simulation software program, WASP, to analyze existing wind data measured on the roofs of various WPI buildings.

Scale-model tests were performed in the WPI closed-circuit wind tunnel. An RPM meter and a 12 volt step generator were used to measure turbine rotation speeds and power output at different wind speeds.

The project also. Second, you need to understand just how an open-circuit wind tunnel works and wht it measures. The wind tunnel in this project has a fan, which will draw air into the tunnel and pass it over a model, and then release the air out of the other end.

When the air flows around the model, it simulates flight. This book is intended to be a valuable addition to students, engineers, scientists, industrialists, consultants and others providing greater insight into wind tunnel designs and their enormous research potential.

It is a compilation of works from world experts on subsonic and supersonic wind tunnel designs, applicable to a diverse range of disciplines.

The book is organised in Cited by: 2. Wind Tunnel Design 10 Wind tunnels generate uniform air flows, with low turbulence intensity, for thermal and hydraulic testing.

These devices have been around for more than a century, and are used in many industries, including aerospace, automotive, and defense.

They also play a key role in electronics thermal management.In this context, wind tunnels have emerged as a useful and cost-effective laboratory technique for the improvement of greenhouse structures [10,11,12], the study of climate control systems [13,14,15,16] and the estimation of the aerodynamic parameters of the experimental models.A number of applications of wind tunnels have been described in the literature on greenhouse Cited by: DESIGN, CONSTRUCTION AND TESTING OF [LOW SPEED WIND TUNNEL WITH ITS MEASUREMENT AND INSPECTION DEVICES Prof.

Dr. Ihsan Y. Hussain Asst. Lect. Maki H. Majeed Lect. Anmar H. Ali Lect. Wail S. Sarsam ١٥٥١ INTRODUCTION The development of fluid mechanics involves observation and study of the physical phenomena which form the basis of .