Free molecular flow describes the fluid dynamics of gas where the mean free path of the molecules is larger than the size of the chamber or of the object...

number (Kn) is a dimensionless number defined as the ratio of the molecular mean free path length to a representative physical length scale. This length...

Knudsen equation is used to describe how gas flows through a tube in free molecular flow. When the mean free path of the molecules in the gas is larger...

were the first type of high vacuum pumps operating in the regime of free molecular flow, where the movement of the gas molecules can be better understood...

the condenser around 2 cm. In molecular distillation, fluids are in the free molecular flow regime, i.e. the mean free path of molecules is comparable...

low pressures the mean free path of a gas molecule is greater than approximately 40 km, so the gas is in free molecular flow, and gas molecules will...

magnitude above high vacuum, where fluids are in the free molecular flow regime, i.e. the mean free path of molecules is comparable to the size of the equipment...

moving a fluid with Knudsen number between the continuum regime and free molecular flow. The drag coefficient calculated with standard correlations is divided...

However when K n > 10 {\displaystyle {\rm {{Kn}>10}}} , the flow regime is free molecular flow, so the intermolecular collisions between the particles are...

Fernand-Hippolyte-Lo Holweck, "Pompe moléculaire"  Skovorodko, Petr A. (2001). Free molecular flow in the Holweck pump. AIP conference proceedings. Unsolved Problems...

Couette flow – Model of viscous fluid flow between two surfaces moving relative to each other Effusive limit Free molecular flow – Gas flow with a relatively...

to generalize the ansatz to higher-order distribution functions. Free molecular flow Ergodic hypothesis Ehrenfest, Paul; Ehrenfest, Tatiana (2002). The...

magnitude above high vacuum, where fluids are in the free molecular flow regime, i.e., the mean free path of molecules is comparable to the size of the...

Intakes have been designed in multiple studies, and are based on free molecular flow condition and on gas-surface interaction models: based on specular...

Inst., pp. 200–213 Bravo, M.C. Effect of transition from slip to free molecular flow on gas transport in porous media, J. Appl. Phys. 102, 074905 _2007...

Free-flow electrophoresis (FFE), also known as carrier-free electrophoresis, is a matrix-free, high-voltage electrophoretic separation technique. FFE...

of a flow model that considers the weighted proportion of various flow regimes like Darcy flow, transition flow, slip flow, and free molecular flow. The...

aerodynamic acceleration along the orbiter's principal axes in the free-molecular flow regime at orbital altitudes and in the transition regime during re-entry...

Chemical potential) an energy flow will occur from S1 to S2, because nature always prefers low energy and maximum entropy. Molecular diffusion is typically described...

The central dogma of molecular biology deals with the flow of genetic information within a biological system. It is often stated as "DNA makes RNA, and...

Conversely, when the diameter is larger than the mean free path of the gas, flow obeys the Sampson flow law. In medical terminology, an effusion refers to...

diameters on the order of the mean-free-path of the fluid, flow will occur with contributions from the molecular regime as well as the viscous regime...

hypersonic flows), a hypersonic flow may be characterized by certain physical phenomena that can no longer be analytically discounted as in supersonic flow.[citation...

flow is superimposed on a Maxwell-Boltzmann equilibrium distribution of molecular motions. Let ε 0 {\displaystyle \varepsilon _{0}} be the molecular kinetic...

Mw is the mass-average molar mass (or molecular weight) and Mn is the number-average molar mass (or molecular weight). Pure Appl. Chem., 2009, 81(2)...

Viscosity in gases arises principally from the molecular diffusion that transports momentum between layers of flow. An elementary calculation for a dilute gas...

is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric...

In the field of molecular modeling, docking is a method which predicts the preferred orientation of one molecule to a second when a ligand and a target...

Molecular dynamics (MD) is a computer simulation method for analyzing the physical movements of atoms and molecules. The atoms and molecules are allowed...

lead to inaccurate results in applications like supersonic speed flows, or molecular flows on nano scale. Those problems for which the continuum hypothesis...