Algebraic Grid Generation for an Afterbody with Finite Span, Tapered Fins.

Abstract

An algebraic technique is presented for the generation of a 3-D grid about a pointed afterbody with four tapered, finite span fins. The grid topology is largely determined by a polar type singularity which passes through the tip parallel to the body centerline. A 3-D grid is generated by stacking a sequence of 2-D grids on predetermined blank surfaces in the fin and tip regions. On each blank surface a grid of the C-type is computed by a combination of conformal mapping and transfinite interpolation. The method is an extension of previous work for the generation of a 3-D grid about an afterbody with four constant chord, infinite span fins. An example grid is presented to illustrate the method and its characteristics are discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1986
Accession Number
ADA174932

Entities

People

  • G. H. Hoffman

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Afterbodies
  • Aircraft Equipment
  • Bodies
  • Cartography
  • Classification
  • Conformal Mapping
  • Coordinate Systems
  • Demographic Cohorts
  • Geometry
  • Interpolation
  • Leading Edges
  • Sequences
  • Symmetry
  • Three Dimensional
  • Topology
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Computational Fluid Dynamics (CFD)
  • Graph Algorithms and Convex Optimization.
  • Microwave Engineering.