1、流体力学与传热课件流体力学与传热课件Flow Rate-Flow Rate-Pressure Drop RelationshipsPressure Drop Relationships As the pores in the medium are normally small and rate of flow of filtrate is low, laminar flow conditions are almost invariably obtained. So, the relationship between the superficial ...
As the pores in the medium are normally small and rate of flow of filtrate is low, laminar flow conditions are almost invariably obtained. So, the relationship between the superficial velocity u and the pressure drop can be described by Kozeny-Carman equation 150uL 1 2 p Dp2 2 3 3.4-2 ...
In subject area: Medicine and Dentistry A shallow or “flat” head curve represents greater sensitivity between the pressure-flow relationship such that small changes in pressure elicit greater changes in flow with any given change in pressure. ...
Under these conditions, the fracture flow is described in terms of the fracture pressure pf(x,t) by the following equation:(3)∂∂x[kf(pf)μ∂pf∂x]+2kμw(∂p∂y)y=0=ϕfcft∂pf∂t Here, due to the nonlinearity of the problems and the permeability hysteresis phenomenon...
The pressure inside the reattached jet is equal to the minimum pressure of the separation bubble, and the relationship between the pressure difference ΔP on both sides of the jet and the centrifugal force acting on the jet can be described by the following equation: $$\Delta P=\frac{J}{...
Plastic crystals as barocaloric materials exhibit the large entropy change rivalling freon, however, the limited pressure-sensitivity and large hysteresis of phase transition hinder the colossal barocaloric effect accomplished reversibly at low pressure.
with the experimental date.The relationship between the bulk elastic modulus and the pressure of these materials is studied.The applications of the four equations are discussed.It is found that calculated results with Birch equation and Shanker equation in agreement with the available experimental data...
A theoretical relationship between mean ventricular pressure (.hivin.P) and mean ventricular outflow (.hivin.Q) was developed based on a model of the left ventricle with elastic-resistive properties. Using a polynomial interpolation method, a fifth-order polynomial equation for the .hivin.P-.ov...
An equation for the pressure-sinkage relationship incorporating deformation rate was developed, using visco-plastic theory, and was found to describe the measured data well.doi:10.1016/0022-4898(85)90146-6M.A. SarganaD. Gee-CloughC.P. Gupta...
The following equation gives the relationship between the axial and lateral strains of confined concrete [2]: (5.60)εcεc0=0.85(1+8σlfc0)[{1+0.75(−εlεc0)}0.7−exp{−7(εlεc0)}] in which εl is taken as negative for tension and positive for compression. The partial deri...