CPACS Documentation

dragContributions Element |

Drag contributions

**Namespace:** Empty

**Schema:** Empty

Type

Parents

aeroCaseCoefficientsType coefficients coefficients coefficients coefficients coefficients coefficients coefficients coefficients

Children

Name | Occurrences | Description |
---|---|---|

All | ||

cdFriction | [0, 1] | Drag contributions due to friction |

cdInduced | [0, 1] | Drag contributions due to energy loss through vortex structures caused by the pressure difference between the upper and lower sides of three-dimensional lifting surfaces. |

cdInterference | [0, 1] | Drag contributions due to mixing of streamlines between airframe components (e.g., interaction between wing and fuselage or pylon and wing). |

cdPressure | [0, 1] | Drag contributions due to the displacement of the flow around a component. Zero for irrotational two-dimensional flows. |

cdTrim | [0, 1] | Drag contributions due to trimmed aircraft configuration |

cdViscous | [0, 1] | Drag contributions due to shear forces on surfaces |

cdWave | [0, 1] | Drag contributions due to energy dissipation in shock waves |

Attributes

Name | Type | Required | Description |
---|---|---|---|

externalDataDirectory | string | ||

externalDataNodePath | string | ||

externalFileName | string |

Remarks

The drag contributions relate to different physical mechanisms. The sum of the contributions does not have to be equal to the total drag.

See Also