tertiary airflow

tertiary airflow

tertiary airflowclick for a larger image
Airflow in a combustion chamber.
The airflow meant for cooling and dilution purposes to achieve a uniform gas temperature across the combustion chamber exit plane. It passes through holes in a gas turbine flame-tube or combustor downstream of secondary holes. See also primary air and secondary air.
References in periodicals archive ?
Combustion is completed by a tertiary airflow, which enters through a separate air sleeve around the venturi and burns out the fuel along the flame periphery.