Error Analysis of Heat Transfer Measurements Made About a Cylinder in Crossflow

Abstract

An uncertainty analysis was applied to the heat transfer coefficient data measured about a right circular cylinder that was mounted in a crossflow configuration. The cylinder was 12 inches in diameter, and the wind tunnel speeds ranged from 10 m/s to 50 m/s yielding Reynolds number range of 2 x 105 to 1 x 106. The data is described in reference 1. The Nusselt Number ranged from low of 200 to a high of 1,920. The results showed the uncertainty in the Nusselt number ranges from a low of 15 to a high of 25 . The minimum uncertainty occurs at the highest wind tunnel speed and the maximum uncertainty occurs at the lowest speed. The low values of the Nusselt number have slightly more uncertainty than the higher values.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 22, 2021
Accession Number
AD1132871

Entities

People

  • Raymond W. Roberts
  • Stephen A. Huyer

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Convection
  • Department Of Defense
  • Equations
  • Fluid Dynamics
  • Heat Transfer
  • Heat Transfer Coefficients
  • Information Operations
  • Measurement
  • Radiation
  • Reynolds Number
  • Technical Information Centers
  • Uncertainty
  • Undersea Warfare
  • Warfare
  • Wind Tunnels

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.