📄 atmosph.htm

📁 matlab的FDC工具箱
💻 HTM
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
  <head>
    <link rel="stylesheet" type="text/css" href="fdchelp.css">
    <title>
      FDC help: Atmosph
    </title>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
  </head>
  <body bgcolor="#DDDDDD"><div>
    <h2>
      Subsystem <i>Atmosph</i>
    </h2>
    <p><i>Atmosph</i> computes some
    atmospheric properties, using the ICAO Standard Atmosphere model (see for
    instance <a href="#Standard Atmosphere">ref.[1]</a>). The block also
    computes the acceleration of gravity and the dynamic coefficient of
    viscosity. The block <i>Atmosph</i> is contained in the subsystem <i><a
    href="adgrp.htm">Airdata Group</a></i> of the <i><a href="beaver.htm">Beaver</a></i> model. Other airdata (-related) variables are
    computed in the blocks <i><a href="airdata1.htm">Airdata1</a></i>, <i><a
    href="airdata2.htm">Airdata2</a></i>, and <i><a href=
    "airdata3.htm">Airdata3</a></i>, which also contained in the subsystem
    <i>Airdata Group</i>. </p>
    <h3>
      Inputvector: <i>x</i>
    </h3>
<pre>
  x = [V alpha beta p q r psi theta phi xe ye H]&#39;        (states)

 {V    : airspeed [m/s]                                         }
 {alpha: angle of attack [rad]                                  }
 {beta : sideslip angle [rad]                                   }
 {p    : roll rate [rad/s]                                      }
 {q    : pitch rate [rad/s]                                     }
 {r    : yaw rate [rad/s]                                       }
 {psi  : yaw angle [rad]                                        }
 {theta: pitch angle [rad]                                      }
 {phi  : roll angle [rad]                                       }
 {xe   : x-coordinate in Earth-fixed reference frame [m]        }
 {ye   : y-coordinate &#39;&#39;     &#39;&#39;          &#39;&#39;      &#39;&#39;  [m]        }
  H    : altitude above sea-level [m]
</pre>
    <p>The variables which are not actually used by <i>Atmosph</i> have been
    displayed between curly braces.</p> 
    <h3>
      Outputvector: <i>yatm</i>
    </h3>
<pre>
  yatm = [rho ps T mu g]&#39;, (atmospheric properties)

  rho  : airdensity [kg/m^3]
  ps   : static pressure [N/m^2]
  T    : temperature [K]
  mu   : dynamic viscosity [kg/(m*s)]
  g    : acceleration of gravity [m/s^2]
</pre>
    <h3>
      <a name="Standard Atmosphere">References</a>
    </h3>
    <ol>
      <li>
        Ruijgrok, G.J.J. <i>Elements of airplane performance</i>. Delft
        University Press, Delft, The Netherlands, 1993.
      </li>
    </ol>
  </div></body>
</html>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -