def m_dot_corrected_over_m_dot(
        temperature_total_2,
        pressure_total_2,
):
    """
    Computes the ratio `m_dot_corrected / m_dot`, where:

        * `m_dot_corrected` is the corrected mass flow rate, where corrected refers to correction to ISO 3977 standard
        temperature and pressure conditions (15C, 101325 Pa).

        * `m_dot` is the raw mass flow rate, at some other conditions.

    Args:

        temperature_total_2: The total temperature at the compressor inlet face, at the conditions to be evaluated. [K]

        pressure_total_2: The total pressure at the compressor inlet face, at the conditions to be evaluated. [Pa]

    Returns:

        The ratio `m_dot_corrected / m_dot`.

    """
    temperature_standard = 273.15 + 15
    pressure_standard = 101325
    return (
                   temperature_total_2 / temperature_standard
           ) ** 0.5 / (pressure_total_2 / pressure_standard)