摘要
本文作者摈弃了国内外通常采用当量直径计算矩形风管比摩阻的方法,而是基于工程流体力学的原理,提出了摩阻修正系数法。这种方法不仅可以用于矩形风管摩阻计算,而且可以用于各种非圆形风管摩阻计算。这种新方法使用简便,计算结果准确。
The author of this article gives an account of a new method for calculating friction losses for noncircular cross section ducts by means of a correction factor without using the circular equivalent of a rectangular duct for equal friction and capacity. This new method is based on the principles of fluid mechanics. The correction factor method can be used to calculate friction losses for all sorts of noncircular cross section ducts besides rectangular ducts. This new method is clear in concept, strict in deductive inference, simple in use, and accurate in calculation results.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1990年第3期343-346,共4页
Journal of Tongji University:Natural Science
关键词
非圆形
截面
风管
摩阻
计算
Noncircular cross section duct
Friction loss correction factor
