Heat Transfer Analysis for Unsteady High Velocity Pipe Flow.

Abstract

This report consists of three parts. The first is the analysis for minimization of the temperature distortion due to the thermocouple cavity. The error is minimized or reduced to zero by optimizing the combination of cavity diameter and depth and the thermocouple transport properties and size. The second is the refinement of the presently available computer program for prediction of the surface temperature and heat flux at the inner surface of the pipe by inverting the temperature response measured by an interior probe close to the heated surface. The refinement is achieved by using the double precision format in the program and adapting the dimensionless formulation. The third is to study the inversion solution for a large time duration of a time dependent surface heat flux. The solution is obtained by the method of Laplace transformation with the convolution integral. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1977
Accession Number
ADA041547

Entities

People

  • Ching Jen Chen
  • Hsai Yin Lee
  • Jenq Shing Chiou
  • Peter Li

Organizations

  • University of Iowa

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Computer Programs
  • Computers
  • Convolution Integrals
  • Finite Element Analysis
  • Gun Barrels
  • Heat Transfer
  • Insulation
  • Integrals
  • Inverse Problems
  • Laplace Transformation
  • Materials
  • Military Research
  • Pipe Flow
  • Temperature Gradients
  • Thermal Conductivity
  • Thermal Diffusivity

Readers

  • Combustion and Flow Dynamics.
  • Systems Analysis and Design