INVESTIGATION OF INSERTS’ EFFECT ON HEAT TRANSFER AND PRESSURE DROP IN A TUBE

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NAZARI MOHAMMAD REZA; ALEM RAJABI A.A.

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Journal Paper

Paper Information

Journal: Journal of Aerospace Mechanics Year:2008 | Volume:4 | Issue:2 (12) Page(s): 1-13

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Title

INVESTIGATION OF INSERTS’ EFFECT ON HEAT TRANSFER AND PRESSURE DROP IN A TUBE

Author(s)

NAZARI MOHAMMAD REZA | ALEM RAJABI A.A. | Issue Writer Certificate

Keywords

HEAT TRANSFERQ2

PRESSURE DROPQ2

NUMERICAL METHODQ2

TUBE INSERTSQ3

Abstract

In this work, HEAT TRANSFER and PRESSURE DROP for a three-dimensional flow in the enterance region of a pipe, which is equipped with one or more inserts, is numerically investigated. The inserts were inter-connected by a thin rod and were kept in the center of the pipe. The Reynolds number for the flow ranged between 450 to 1800 and the Prandtl number was 0.72. The number of inserts, the distance between them, and their axial length were the variables whose effects on the HEAT TRANSFER and on the PRESSURE DROP were investigated. Finite volume method was employed to transfer the governing equations into algebraic ones. To evaluate simultaneous effects of the inserts on HEAT TRANSFER and on PRESSURE DROP, an overall enhancement ratio (OER) was introduced and applied. The results show that in many cases, thinner inserts lead to a better OER’s. Also, in lamiar flows, the shape of the inserts affects ORE. On the other hand, inserts with a square shape lead to logitudinal vortices, which increase ORE.

Cites

EMPIRICAL INVESTIGATION OF BOILING FLOW PRESSURE DROP INSIDE FLATTENED TUBES

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APA: Copy

NAZARI, MOHAMMAD REZA, & ALEM RAJABI, A.A.. (2008). INVESTIGATION OF INSERTS’ EFFECT ON HEAT TRANSFER AND PRESSURE DROP IN A TUBE. AEROSPACE MECHANICS JOURNAL, 4(2 (12)), 1-13. SID. https://sid.ir/paper/101877/en

Vancouver: Copy

NAZARI MOHAMMAD REZA, ALEM RAJABI A.A.. INVESTIGATION OF INSERTS’ EFFECT ON HEAT TRANSFER AND PRESSURE DROP IN A TUBE. AEROSPACE MECHANICS JOURNAL[Internet]. 2008;4(2 (12)):1-13. Available from: https://sid.ir/paper/101877/en

IEEE: Copy

MOHAMMAD REZA NAZARI, and A.A. ALEM RAJABI, “INVESTIGATION OF INSERTS’ EFFECT ON HEAT TRANSFER AND PRESSURE DROP IN A TUBE,” AEROSPACE MECHANICS JOURNAL, vol. 4, no. 2 (12), pp. 1–13, 2008, [Online]. Available: https://sid.ir/paper/101877/en

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