Entry Flow in a Heated Tube

Abstract

The asymptotic solution of flow near the entrance of a heated straight pipe is obtained by perturbing the solution of flow in an unheated straight pipe. Two vortices result from motions of fluid particles induced by displacement of the boundary layer. The axial velocity has a concave profile and grows toward a uniform profile downstream. The downward stream caused by displacement of secondary boundary layer forces the axial velocity profile counterclockwise if the flow is from left to right. A favorable pressure gradient is generated on the bottom wall; an unfavorable pressure gradient is induced on the top wall.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA042203

Entities

People

  • Lun-shin Yao

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Control
  • Boundary Layer Flow
  • Buoyancy
  • Centrifugal Force
  • Computational Fluid Dynamics
  • Computational Science
  • Convection
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Heat Transfer
  • Poiseuille Flow
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Secondary Flow

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.