Heat transfer in transitional and turbulent boundary layers with system rotation

D. Yamawaki, Shinnosuke Obi, S. Masuda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The present paper reports on the influence of system rotation on the heat transfer characteristics of transitional and turbulent zero-pressure gradient boundary layers. A test plate is installed in a wind tunnel, which is rotatable around the axis parallel to the plate leading edge with constant speed of rotation. Local heat transfer coefficient during rotation is determined by employing a thermochromic liquid crystal. Effects of the Coriolis force and the centrifugal buoyancy force have been examined by comparing the heat transfer coefficient with different free-stream velocities, rotational speeds and wall temperatures. It has been revealed that the Coriolis force has significant effect on transitional heat transfer, while its effect on turbulent heat transfer is moderate. The centrifugal buoyancy exhibits additional effects if the thermal loading is high.

Original languageEnglish
Pages (from-to)186-193
Number of pages8
JournalInternational Journal of Heat and Fluid Flow
Volume23
Issue number2
DOIs
Publication statusPublished - 2002 Apr

Fingerprint

turbulent boundary layer
Coriolis force
Boundary layers
heat transfer
Heat transfer
Buoyancy
Heat transfer coefficients
heat transfer coefficients
buoyancy
Liquid Crystals
turbulent heat transfer
Pressure gradient
Liquid crystals
Wind tunnels
free flow
wall temperature
wind tunnels
leading edges
pressure gradients
boundary layers

Keywords

  • Centrifugal buoyancy
  • Coriolis force
  • Flat plate boundary layer
  • Geortler instability
  • Heat transfer
  • Liquid crystal
  • System rotation

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Heat transfer in transitional and turbulent boundary layers with system rotation. / Yamawaki, D.; Obi, Shinnosuke; Masuda, S.

In: International Journal of Heat and Fluid Flow, Vol. 23, No. 2, 04.2002, p. 186-193.

Research output: Contribution to journalArticle

@article{f54fcd5c25e14c51ba4ffadba225c3eb,
title = "Heat transfer in transitional and turbulent boundary layers with system rotation",
abstract = "The present paper reports on the influence of system rotation on the heat transfer characteristics of transitional and turbulent zero-pressure gradient boundary layers. A test plate is installed in a wind tunnel, which is rotatable around the axis parallel to the plate leading edge with constant speed of rotation. Local heat transfer coefficient during rotation is determined by employing a thermochromic liquid crystal. Effects of the Coriolis force and the centrifugal buoyancy force have been examined by comparing the heat transfer coefficient with different free-stream velocities, rotational speeds and wall temperatures. It has been revealed that the Coriolis force has significant effect on transitional heat transfer, while its effect on turbulent heat transfer is moderate. The centrifugal buoyancy exhibits additional effects if the thermal loading is high.",
keywords = "Centrifugal buoyancy, Coriolis force, Flat plate boundary layer, Geortler instability, Heat transfer, Liquid crystal, System rotation",
author = "D. Yamawaki and Shinnosuke Obi and S. Masuda",
year = "2002",
month = "4",
doi = "10.1016/S0142-727X(01)00148-5",
language = "English",
volume = "23",
pages = "186--193",
journal = "International Journal of Heat and Fluid Flow",
issn = "0142-727X",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Heat transfer in transitional and turbulent boundary layers with system rotation

AU - Yamawaki, D.

AU - Obi, Shinnosuke

AU - Masuda, S.

PY - 2002/4

Y1 - 2002/4

N2 - The present paper reports on the influence of system rotation on the heat transfer characteristics of transitional and turbulent zero-pressure gradient boundary layers. A test plate is installed in a wind tunnel, which is rotatable around the axis parallel to the plate leading edge with constant speed of rotation. Local heat transfer coefficient during rotation is determined by employing a thermochromic liquid crystal. Effects of the Coriolis force and the centrifugal buoyancy force have been examined by comparing the heat transfer coefficient with different free-stream velocities, rotational speeds and wall temperatures. It has been revealed that the Coriolis force has significant effect on transitional heat transfer, while its effect on turbulent heat transfer is moderate. The centrifugal buoyancy exhibits additional effects if the thermal loading is high.

AB - The present paper reports on the influence of system rotation on the heat transfer characteristics of transitional and turbulent zero-pressure gradient boundary layers. A test plate is installed in a wind tunnel, which is rotatable around the axis parallel to the plate leading edge with constant speed of rotation. Local heat transfer coefficient during rotation is determined by employing a thermochromic liquid crystal. Effects of the Coriolis force and the centrifugal buoyancy force have been examined by comparing the heat transfer coefficient with different free-stream velocities, rotational speeds and wall temperatures. It has been revealed that the Coriolis force has significant effect on transitional heat transfer, while its effect on turbulent heat transfer is moderate. The centrifugal buoyancy exhibits additional effects if the thermal loading is high.

KW - Centrifugal buoyancy

KW - Coriolis force

KW - Flat plate boundary layer

KW - Geortler instability

KW - Heat transfer

KW - Liquid crystal

KW - System rotation

UR - http://www.scopus.com/inward/record.url?scp=0036536466&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036536466&partnerID=8YFLogxK

U2 - 10.1016/S0142-727X(01)00148-5

DO - 10.1016/S0142-727X(01)00148-5

M3 - Article

VL - 23

SP - 186

EP - 193

JO - International Journal of Heat and Fluid Flow

JF - International Journal of Heat and Fluid Flow

SN - 0142-727X

IS - 2

ER -