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these fields as flows/fluxes of some sort. Given a flux according to the electromagnetism definition, the corresponding flux density, if that term is...

fundamental diagram of traffic flow is a diagram that gives a relation between road traffic flux (vehicles/hour) and the traffic density (vehicles/km). A macroscopic...

Power density, defined as the amount of power (the time rate of energy transfer) per unit volume, is a critical parameter used across a spectrum of scientific...

A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively...

sometimes also referred to as heat flux density, heat-flow density or heat-flow rate intensity, is a flow of energy per unit area per unit time. Its...

shock wave propagation. Key traffic stream variables include speed, flow, and density, which are interconnected. Free-flowing traffic is characterized by...

incompressible flow (isochoric flow) refers to a flow in which the material density of each fluid parcel — an infinitesimal volume that moves with the flow velocity...

the calculation of various properties of the fluid, such as flow velocity, pressure, density, and temperature, as functions of space and time. Before the...

Density (volumetric mass density or specific mass) is a substance's mass per unit of volume. The symbol most often used for density is ρ (the lower case...

for density meters at various points during their respective processes. Coriolis density meters, also known as mass flow meters or inertial flow meters...

flowing through the device. Volumetric flow rate is the mass flow rate divided by the fluid density. If the density is constant, then the relationship is...

of 1. At choked flow, the mass flow rate can be increased only by increasing the upstream density of the substance. The choked flow of gases is useful...

internal to Earth's crust. Global data on heat-flow density are collected and compiled by the International Heat Flow Commission of the International Association...

Many flow batteries use carbon felt electrodes due to its low cost and adequate electrical conductivity, despite their limited power density due to...

traffic flow, empirical data show a positive correlation between the flow rate q {\displaystyle q} (in vehicles per unit time) and vehicle density k {\displaystyle...

described a fundamental relationship between pressure, density, and flow velocity for incompressible flow known today as Bernoulli's principle, which provides...

Flowability, also known as powder flow is a property that defines an ability of a powdered material to flow, related to cohesion. Powder flowability depends...

Compressible flow (or gas dynamics) is the branch of fluid mechanics that deals with flows having significant changes in fluid density. While all flows are compressible...

depends on the viscosity and density of the fluid and dimensions of the channel. Turbulent flow is a less orderly flow regime that is characterized by...

drag force of the air flow against it; it does not measure volume or mass directly. The drag force depends on air density (air density in turn depends on...