The pressure drop (ΔP) for the fluid flow inside the test helicoidal pipe is directly measured in the current experiment. The pressure drop (ΔP) will be varied with different fluids, while the dimensionless friction factor of the helicoidal pipe (fc) can be expressed as a function of Reyn...
The critical Ohnesorge number that ensures transition from the inertial to viscous regime was 0.03, and the time- scale factor value that defines the transition from collapse-penetration mode (CPM) to impact-penetration mode (IPM) was found to be 0.04. Full size image Figure 2c shows the ...
The spread factor, the height of the drop and the dynamic contact angle obtained by the numerical simulations were compared with the experimental data. The numerical results agree well with the experimental data. 展开 关键词: Drop impact Dynamic contact angle Vof method Wettability ...
Spreading and penetration however need to be adjusted by a factor to adapt the measurements to the relevant scales. These adjustments were made by comparing simulated results with measurements of 30 pL drops on the untreated industrial base paper using the same setup as for the evaporation rate ...
Fluid velocity, Reynolds number and pipe friction coefficient are computed as a function of pipe size, fluid density and viscosity. App has its own algorithm to compute the coefficient of pipe friction based on roughness factor for the given material and Reynolds number under turbulent conditions. ...
Computational fluid dynamics simulations of fibrous filters with 56 combinations of different fiber sizes, packing densities, face velocities, and thicknesses were conducted for developing models that predict pressure drops across nanofiber filters. The
Infusion bag with drop counter on a IV stand pole or bottle hanger. Intravenous therapy hanging bag of medicine for a patient receiving fluids through an intravenous line in a hospital room.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版
Maxwell [1] derived a “static” thermal conductivity model for conventional fluids containing at that time micrometer/millimeter particles. It was assumed that the effective thermal conductivity of the mixture is a function of the thermal conductivity of the suspensions and the base fluid as well ...
First, a comprehensive range of parameters has been investigated, with drop sizes spanning a factor of 105 in drop volume (30 pl to 4 μl) and substrate liquid absorption rates between 6 ml m−2s−1 and 710 ml m−2s−1. Second, the focus is set on a qualitative ...
The co-electrospinning method can be used for the fabrication of versatile structures and microdroplets with the advantages of high precision packaging, strong controllability, and simple process. During theoretical analysis, the CEA process reports that the flow rate of internal and external fluids has...