Published October 2000 | Version v1
Journal article Metadata-only

On the measurement of low fluid velocity due to natural convection

Creators

  • 1. Science Univ. of Tokyo, Dept. of Mechanical Engineering, Noda, Chiba (Japan)
  • 2. Yamagata 3M Limited, Yamagata (Japan)
  • 3. Science Univ. of Tokyo (Japan). Faculty of Science

Description

The measurement of low fluid velocity due to natural convection is tried in a vertical annulus by a method using a tracer of heated air (a thermal pulse technique). This technique is firstly used for measuring the velocities from 0.1 m/s to 1.0 m/s in laminar forced convective flows in a vertical circular pipe, and its availability is verified. Secondly, the method is applied to natural convective flows in the vertical annulus at the Grashof numbers from 103 to 104. The measured velocity distributions in the radial direction are in a relatively good agreement with those of numerical computations. (author)

Additional details

Publishing Information

Journal Title
Nippon Kikai Gakkai Ronbunshu, B Hen
Journal Volume
66
Journal Issue
650
Journal Page Range
p. 2748-2751
ISSN
0387-5016

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
32003792
Subject category
S42: ENGINEERING;
Descriptors DEI
BENCH-SCALE EXPERIMENTS; DETECTION; FLUID FLOW; HEATERS; LAMINAR FLOW; LMFBR TYPE REACTORS; NATURAL CONVECTION; PULSE TECHNIQUES; REYNOLDS NUMBER; VELOCIMETERS; WIRES
Descriptors DEC
BREEDER REACTORS; CONVECTION; ENERGY TRANSFER; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FLUID FLOW; HEAT TRANSFER; LIQUID METAL COOLED REACTORS; MASS TRANSFER; MEASURING INSTRUMENTS; REACTORS

Optional Information

Notes
3 refs., 9 figs., 1 tab.