不同形状扰流柱矩形通道内流动特性研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (1): 37-41.

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Study of Flow Characteristics inside Rectangular Channel with Different Pin Fins

WANG Feng-ming,ZHANG Jing-zhou,WANG Suo-fang

Nanjing University of Aeronautics and Astronautics

Received:2005-08-31 Revised:2006-04-01 Online:2007-01-10 Published:2007-01-10
Contact: ZHANG Jing-zhou

Abstract

Abstract:

A combined experimental and 3-D numerical study on the flow processes of rectangular channel fitted with staggered arrays of circle, elliptical and water drop shaped pin fins is conducted in the present paper. The velocity fields and static pressure distributions are obtained, and the effects of pin fins shape and array spacing on the pressure loss characteristics are analyzed in detail. It is found that the pressure loss of drop-shaped pin fins is about 50~60% of that of the circle pin fins.

Key words: pressure , loss, , water , drop-shaped , pin , fins

CLC Number:

WANG Feng-ming;ZHANG Jing-zhou;WANG Suo-fang. Study of Flow Characteristics inside Rectangular Channel with Different Pin Fins[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(1): 37-41.

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Study of Flow Characteristics inside Rectangular Channel with Different Pin Fins

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