Reynolds Number Effect on Drag of the Angled Arrow Projectile,

Abstract

This report presents the results of a series of shots fired in the NOL pressurized ballistics firing range to determine the effect of Reynolds number on drag of the Angled Arrow Projectile at Mach numbers of 1.86 and 2.87. Drag values were determined for a Reynolds number variation of nine million. The results obtained at M = 1.86 indicate an increase in drag coefficient of approximately 4.55 per cent for a change in Reynolds number from 2,000,000 to 11,000,000. At M - 2.87 an increase in drag coefficient of approximately 20 percent was obtained for a similar variation in Reynolds number. The drag values are in fair agreement with wind-tunnel tests and with the estimated free-flight values of the full-scale missile at high altitude.

Document Details

Document Type
Technical Report
Publication Date
Mar 02, 1951
Accession Number
AD0895225

Entities

People

  • I. M. Nestingen
  • Jenny E. Greene

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Agreements
  • Altitude
  • Ballistics
  • Coefficients
  • Flight
  • Free Flight
  • High Altitude
  • Mach Number
  • Projectiles
  • Reynolds Number
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Dynamics.