Flow of Non-Newtonian Fluids in Curved Pipes : Laminar Flow in Entrance Region

TAKAMI Toshihiro, SUDOU Kouzou, TOMITA Yukio

説明

A developing laminar flow of power-law fluids in the entrance region of curved pipes has been investigated by analyzing the three-dimensional elliptic equation numerically and measuring the velocity distribution with an optical fiber LDV. Flow mechanism from the curved pipe inlet to the fully developed region has been made clear under the condition of power index n>0.6, two curvature radius ratios Rc=10 and 30, and Dean number De=100〜500. As the power index decreases, the primary flow becomes more highly distorted and the axial velocity distribution with double peaks appears on the symmetric plane in the initial development. Also, the secondary flow increases dramatically just after entry and declines rapidly to form another vortex pair in a part of the developing region.

収録刊行物

JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 33 (1), 26-32, 1990-02-15

一般社団法人日本機械学会

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詳細情報詳細情報について

CRID: 1570572702201209728

NII論文ID: 110002492433

NII書誌ID: AA10680596

ISSN: 09148817

本文言語コード: en

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