Examples of using Mach number in English and their translations into Hebrew
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The Mach Number.
The ratio of one's speed to that of sound is named the Mach number in his honor.
Mach Number in NASA's web site.
The ratio of the speed of an object to the speed of sound in the fluid is called the object's Mach number.
So the Mach number is named after him.
Within the θ-β-M equation, a maximum corner angle, θMAX,exists for any upstream Mach number.
The Mach Number is named after the Austrian physicist Ernst Mach. .
Most supersonic aircraft are limited as to the maximum Mach number they can fly, which is known as the"Mach limit".
The unitless Mach number was named after the Austrian physicist Ernst Mach. .
The speed at which this occurs variesfrom aircraft to aircraft, and is known as the critical Mach number.
The assumption is that the flow remains within a Mach number limit(normally less than 0.3) for any solution using such a constraint to be valid.
A θ-β-M diagram, common in most compressible flow textbooks,shows a series of curves that will indicate θMAX for each Mach number.
The Fanno flow modelbegins with a differential equation that relates the change in Mach number with respect to the length of the duct, dM/dx.
Jet aircraft do not have VNO and VNE like piston-engined aircraft, but insteadhave a maximum operating speed expressed in knots, VMO and Mach number, MMO.
Because air temperature and composition vary significantly with altitude, Mach numbers for aircraft can change without variation of airspeed.
So if someone tells you that the Mach number is 2, what that tells you is that they are traveling two times the speed of sound, in that medium, for those conditions.
The Rayleigh flow modelbegins with a differential equation that relates the change in Mach number with the change in stagnation temperature, T0.
With these shock-relative velocities, the properties of the regions before and after the shock can be defined below introducing the temperature as T,the density as ρ, and the Mach number as M.
Since air temperature and composition varies significantly with altitude, Mach numbers for aircraft may change despite a constant travel speed.
Early supersonic aircraft jet engine intakes were designed using compression from a single normal shock,but this approach caps the maximum achievable Mach number to roughly 1.6.
Flow can expand around either a sharp or rounded corner equally,as the increase in Mach number is proportional to only the convex angle of the passage(δ).
Given an upstream Mach number, M 1{\displaystyle M_{1}}, and the ratio of specific heats, γ{\displaystyle\gamma}, the post normal shock Mach number, M 2{\displaystyle M_{2}}, can be calculated using the equation below.
If initial values of si and Mi are defined,a new equation for dimensionless entropy versus Mach number can be defined for each model.
Compressibility effects in fluid mechanics are typically considered significant if the Mach number of the flow exceeds 0.3 or if the fluid undergoes very large pressure changes.
A pitot-static system is a system of pressure-sensitive instruments that is most oftenused in aviation to determine an aircraft's airspeed, Mach number, altitude, and altitude trend.
For given upstream conditions at point 1 as shown in Figures 3 and 4,calculations can be made to determine the nozzle exit Mach number and the location of a normal shock in the constant area duct.