The formula is based on a 1-dimensional steady conduit flow model with vertical gas escape, and provides the value of the porosity as a function of magma flow rate, magma properties (viscosity and permeability), and pressure. The porosity for a given pressure depends on two non-dimensional ...
At the same time, the calculating formula of heat_pressure of three_dimension has been derived for the first time, undoubtedly, it will offer theoretical basis for numerical simulation of flow field of three_dimension in goaf.关键词: goaf flow field mathematical model heat_pressure ...
Puncture strength and bursting strength Linear correlation, in actual inference, can be roughly obtained according to bursting strength The puncture strength, the calculation formula is as follows: PET = 0.0054BST2.16358 The edge pressure strength is ECT (Edge, Crush, Test, of, Corrugated, Fiber...
At present, Low Voltage Apparatus is often required to reduce the capacity when they are used at high altitudes, but the method of determining the derating factors still needs further research. To address this problem, firstly, a formula for calculating the derating factors is derived, and a me...
Some researchers have concluded that the Penman equation was the best formula for calculating PET and nominated it as the basis of standardising other methods (Moges et al., 2003). Others have verified PET methods by reference to other evapotranspiration variables, such as ET0 calculated by the...
Sound pressure p Pa | Sound level Lp dB (SPL) | Sound level LI dB (SIL) Sound intensity I W/m2 | Sound propagation in air | Fill in the gray top box and click on the calculation button. 1 Pa = 1 pascal = 1 N/m2. The atmospheric pressure is not the same as the sound pres...
NanjingUniversityofInformationScienceandTechnology,Nanjing210044(Received14January2009;revised12May2009)ABSTRACTBasedongradientwindequations,includingfrictionalforce,andconsideringtheefectofthemovementofatropicalcycloneonwindspeed,theFujitaFormulaisimprovedandfurthersimplified,andthenumericalschemeforcalculatingthemaximum...
The three-parameter Lennard-Jones potential function is proposed to calculate thermodynamic property (second virial coefficient) and transport properties (viscosity, thermal conductivity, and diffusion coefficient) of noble gases (He, Ne, Ar, Kr, and Xe)
2.The method of claim 1, wherein calculating the fluid flow rate (Qa) in said flow access takes place by the formula: Cdnorm/Cdrev=1+K/Qain which Cd norm and Cd rev are values proportional to the conductivity of the dialysis fluid in the normal and reversed positions, respectively, an...
As shown in Figure 6c, the ℎh values predicted by the diagnostic formula of 𝜆3λ3 present the best fit with the calculated ℎh (further details will be presented in Section 3.2). Figure 6. Scatter diagrams of the predicted versus the calculated heights of the stable boundary layer:...