Impact Pressure - Isentropic Flow

Isentropic Flow

In isentropic flow the ratio of total pressure to static pressure is given by:

where:

is total pressure

is static pressure

is the ratio of specific heats

is the freestream Mach number


Taking to be 1.4, and since



Expressing the incompressible dynamic pressure as and expanding by the binomial series gives:


where:

is dynamic pressure

Read more about this topic:  Impact Pressure

Famous quotes containing the word flow:

    Clay answered the petition by declaring that while he looked on the institution of slavery as an evil, it was ‘nothing in comparison with the far greater evil which would inevitably flow from a sudden and indiscriminate emancipation.’
    State of Indiana, U.S. public relief program (1935-1943)