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A Wind Tunnel Study on the Mars Pathfinder (Mpf) Lander Descent Pressure Sensor by Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al - Paperback
60.90 AED

A Wind Tunnel Study on the Mars Pathfinder (Mpf) Lander Descent Pressure Sensor by Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al - Paperback

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Category Type
Politics
ISBN
9781287274155
Author
Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al
Publisher
Bibliogov
Description:

The primary focus of this study was to determine the accuracy of the Mars Pathfinder lander local pressure readings in accordance with the actual ambient atmospheric pressures of Mars during parachute descent. In order to obtain good measurements, the plane of the lander pressure sensor opening should ideally be situated so that it is parallel to the freestream. However, due to two ...

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PRODUCT INFORMATION

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    Specifications

    Category Type
    Politics
    ISBN
    9781287274155
    Item EAN
    2724352869211
    People
    Author
    Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al
    People
    Publisher
    Bibliogov
    Category Type
    Politics
    ISBN
    9781287274155
    Item EAN
    2724352869211
    People
    Author
    Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al
    People
    Publisher
    Bibliogov
    Technical Information
    Binding
    Paperback
    Languages and countries
    Book Language
    English
    Read more
  •  

    Description:

    The primary focus of this study was to determine the accuracy of the Mars Pathfinder lander local pressure readings in accordance with the actual ambient atmospheric pressures of Mars during parachute descent. In order to obtain good measurements, the plane of the lander pressure sensor opening

    The primary focus of this study was to determine the accuracy of the Mars Pathfinder lander local pressure readings in accordance with the actual ambient atmospheric pressures of Mars during parachute descent. In order to obtain good measurements, the plane of the lander pressure sensor opening should ideally be situated so that it is parallel to the freestream. However, due to two unfavorable conditions, the sensor was positioned in locations where correction factors are required. One of these disadvantages is due to the fact that the parachute attachment point rotated the lander's center of gravity forcing the location of the pressure sensor opening to be off tangent to the freestream. The second and most troublesome factor was that the lander descends with slight oscillations that could vary the amplitude of the sensor readings. In order to accurately map the correction factors required at each sensor position, an experiment simulating the lander descent was conducted in the Martian Surface Wind Tunnel at NASA Ames Research Center. Using a 115 scale model at Earth ambient pressures, the test settings provided the necessary Reynolds number conditions in which the actual lander was possibly subjected to during the descent. In the analysis and results of this experiment, the readings from the lander sensor were converted to the form of pressure coefficients. With a contour map of pressure coefficients at each lander oscillatory position, this report will provide a guideline to determine the correction factors required for the Mars Pathfinder lander descent pressure sensor readings.

    Product Features:
    • Category: Politics
    • Binding: Paperback
    • Language of Text: English
    • Author(s): Francisco J. Soriano, Nasa Technical Reports Server (Ntrs), Et Al
    • Publisher: Bibliogov
    • ISBN: 9781287274155
    • Number of Pages: 30
    • Dimensions: 9.69 x 7.44 x 0.06 inches
 

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