The Mach number (M or Ma), often only Mach, (/mɑːk/; German: [max]) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity...

In aerodynamics, the critical Mach number (Mcr or M*) of an aircraft is the lowest Mach number at which the airflow over some point of the aircraft reaches...

The Alfvén Mach number (also known as the Alfvén number, Alfvénic Mach number, and magnetic Mach number; MA or MM) is a dimensionless quantity representing...

speed of sound, often stated as starting at speeds of Mach 5 and above. The precise Mach number at which a craft can be said to be flying at hypersonic...

quantity called Mach number. This is shown on a Machmeter as a decimal fraction. An aircraft flying at the speed of sound is flying at a Mach number of one, expressed...

In fluid dynamics, a Mach wave, also known as a weak discontinuity, is a pressure wave traveling with the speed of sound caused by a slight change of pressure...

compressible, flows are usually treated as being incompressible when the Mach number (the ratio of the speed of the flow to the speed of sound) is smaller...

ratio of the speed of a flow or object to that of sound is named the Mach number in his honour. As a philosopher of science, he was a major influence...

but subsonic fixed-wing aircraft's stall speed is near the critical Mach number, making it very difficult to keep an airplane in stable flight. Because...

expressed by a Mach number, it is expressed relative to the local speed of sound, e.g. VMO: Maximum operating speed, MMO: Maximum operating Mach number. V1 is...

airspeed), but other measures of airspeed, such as indicated airspeed and Mach number give useful information about the capabilities and limitations of airplane...

shocks.[clarification needed] The Mach number in the upstream is given by M 1 {\displaystyle {M_{1}}} and the mach number in the downstream is given by M...

over the bottom surface. When the aircraft speed reaches its critical Mach number the accelerated airflow locally reaches the speed of sound and creates...

The drag-divergence Mach number (not to be confused with critical Mach number) is the Mach number at which the aerodynamic drag on an airfoil or airframe...

\lambda } ≈ 8×10−8 m (80 nm). The Knudsen number can be related to the Mach number and the Reynolds number. Using the dynamic viscosity μ = 1 2 ρ c ¯...

flow turns around a convex corner. The fan consists of an infinite number of Mach waves, diverging from a sharp corner. When a flow turns around a smooth...

Mach 5 or variation may refer to: Mach 5 (speed), a mach number, 5 times the speed of sound Mach Five, a racing car in the Speed Racer franchise Mach-V...

Look up Mach or mach in Wiktionary, the free dictionary. Mach or Mach number is speed expressed as a multiple of the speed of sound. Mach may also refer...

characteristic length (in m). The Froude number has some analogy with the Mach number. In theoretical fluid dynamics the Froude number is not frequently considered...

Mach 1 can refer to: Mach number The speed of sound M.A.C.H. 1, a comic strip MACH-1 (Marvel Comics), a comic book superhero alter-ego of Abner Jenkins...

properties of the fluid (density, pressure, temperature, flow velocity, Mach number) change almost instantaneously. Measurements of the thickness of shock...

assumption in the Prandtl–Glauert transformation is approximately constant Mach number throughout the flow, and the increasing slope in the transformation indicates...

physics, particularly in discussions of gravitation theories, Mach's principle (or Mach's conjecture) is the name given by Albert Einstein to an imprecise...

other dimensionless numbers as well, such as the Mach number used in compressible flows, or the Froude number that governs open-channel flows. Some flows involve...

Mach 2 or variation, may refer to: Mach number for twice the speed of sound Supersonic speed of 2 times the speed of sound Ford Mach 2, a 1967 car; see...

through which a flow turns isentropically from sonic velocity (M=1) to a Mach (M) number greater than 1. The maximum angle through which a sonic (M = 1) flow...

occurrence of a normal shock wave. With a given upstream Mach number, the post-shock Mach number can be calculated along with the pressure, density, temperature...

Speed Racer, also known as Mach GoGoGo (Japanese: マッハGoGoGo(ゴーゴーゴー), Hepburn: Mahha GōGōGō), is a Japanese manga series written and illustrated by Tatsuo...

relevant subject in today's research on gas dynamics. Compressibility Mach number Diffusion Gas dynamics is the overview of the average value in the distance...

approaches the speed of sound, the air accelerating around the wing reaches Mach 1 and shockwaves begin to form. The formation of these shockwaves causes...