Trip strip and film cooling hole for gas turbine engine component

A turbine vane for a gas turbine engine, comprising:

• an external surface bounding a hot gas path of the gas turbine engine, the external surface defining an airfoil portion of the vane;
• a cooling passage configured to deliver a cooling airflow therethrough, including:
• an internal surface located opposite the external surface, the internal surface and the external surface together defining a component wall;
• and
• a plurality of trip strip features located along the internal surface, each trip strip feature having a trip strip height extending from the internal surface and a trip strip width extending along the internal surface in a flow direction of the cooling airflow through the cooling passage, a ratio of a trip strip pitch between adjacent trip strip features in a width direction and the trip strip height is less than 5;
• and
• one or more cooling film bleed holes extending from the internal surface to the external surface, the one or more cooling film bleed holes disposed between adjacent trip strip features of the plurality of trip strip features.

A gas turbine engine comprising:

• a combustor section;
• and a turbine section in flow communication with the combustor section;
• and
• one or more components including:
• an external surface bounding a hot gas path of the gas turbine engine;
• a cooling passage configured to deliver a cooling airflow therethrough, including:
• an internal surface located opposite the external surface, the internal surface and the external surface together defining a component wall;
• and
• a plurality of trip strip features located along the internal surface, each trip strip feature having a trip strip height extending from the internal surface and a trip strip width extending along the internal surface in a flow direction of the cooling airflow through the cooling passage, a ratio of a trip strip pitch between adjacent trip strip features in a width direction and the trip strip height is less than 5;
• and
• one or more cooling film bleed holes extending from the internal surface to the external surface, the one or more cooling film bleed holes disposed between adjacent trip strip features of the plurality of trip strip features.