Calculating Drag Coefficients for Spheres and Other Shapes Using C++

Abstract

This report presents a set of functions, written in C++, that can be used to estimate fluid drag coefficients. The code does not perform estimations based on first-principle calculations. Rather, it relies on user-supplied tables that relate drag coefficients to Mach and Reynolds numbers. Bilinear interpolations are used to estimate drag coefficients between tabulated values. Two sample user-input tables, both relating to spheres, are provided.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2014
Accession Number
ADA606366

Entities

People

  • Robert J. Yager

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Atmospheres
  • Atmospheric Temperature
  • Barometric Pressure
  • Coefficients
  • Diameters
  • Equations
  • Fluid Flow
  • High Temperature
  • Interpolation
  • Low Resolution
  • Mach Number
  • Military Research
  • Reynolds Number
  • Sea Level
  • Standards
  • Viscosity

Readers

  • Computer Science.
  • Fluid Mechanics and Fluid Dynamics.
  • Regression Analysis.