This effect of pressure gradient on flood port resistance is studied,orthogonal and uniform design methods are used to draw up the calculation schemes,two empirical equations for flood port resistance coefficient are presented by way of stepwise regression.

Started from the energy balance equation of silt laden flow,there are two aspects that the silt movement influences on the flow resistance:(1)decrease of resistance caused by reduction of Karman s constant;(2)increase of resistance caused by the bed load movement.

In order to study the mechanism of flow resistance exerted by vegetation in open channel, vegetation rigidity has been researched and a dimensionless number, F, was introduced to describe vegetation ability to resist bending in this paper.

Effects of different root zone irrigation modes on apple seedlings hydraulic resistance

This paper was concerned with analyzing quantitatively the magnitude, the variation, and the relative importance of each water potential and hydraulic resistance in latored soil mango atmosphere continuum in slope land, based on the experimental data obtained in the mango plant field and on the electrical analog principle of water flow.