Scientists have designed mathematical expressions that more accurately estimate gas movement through nanosized pores. This could help improve fuel cell development. Many engineered devices depend on ...

Plasma arc cutting (PAC) is a thermal cutting technique widely used in manufacturing applications such as shipbuilding, aerospace, fabrication, nuclear plants decommissioning, construction industry, ...

Oil field operators can use several practical equations for calculating flow rates of natural gas through venturi gas-lift valves. For critical flow, this analysis derived such equations from a ...

In most cases, the velocity of sound in partially saturated rock is significantly greater than in pure gas under the same pressure and temperature. What this means is that the wave-propagation process ...

Both gas and liquid flows can be measured in volumetric or mass flow rates. With noncompressible liquids, these measurements are nearly the same, sans the effects of temperature. With compressible ...

The curvature leads to shockwaves, which lowers gas flow velocity and plasma arc cutting process efficiency. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

points 1 and 2 lie on a streamline, the fluid has constant density, the flow is steady, and there is no friction. Although these restrictions sound severe, the Bernoulli equation is very useful, ...

Chezy and Manning developed equations that are used to determine the average volumetric flowrate in open channels. This article explains a laboratory method that was developed and tested to further ...