Apparatus and method for mitigating particulate accumulation on a component of a gas turbine

A combustor for use in a gas turbine engine, the combustor enclosing a combustion chamber having a combustion area, wherein the combustor comprises:

• a combustion liner having an inner surface and an outer surface opposite the inner surface wherein the combustion liner includes a primary aperture extending from the outer surface to the inner surface through the combustion liner and a receiving aperture extending from the outer surface to the inner surface through the combustion liner;
• a heat shield panel interposed between the inner surface of the liner and the combustion area, the heat shield panel having a first surface and a second surface opposite the first surface, wherein the second surface is oriented towards the inner surface, and wherein the heat shield panel is separated from the liner by an impingement cavity;
• a threaded stud including a first end and a second end opposite the first end, the threaded stud extending from the second surface of the heat shield panel through the impingement cavity and through the receiving aperture of the combustion liner, wherein the first end is located proximate the second surface of the heat shield panel;
• an injection aperture fluidly connecting airflow in an airflow path proximate the outer surface of the combustion liner to the impingement cavity and configured to convey the airflow into the impingement cavity;
• and
• a faired body operably secured to the threaded stud within the impingement cavity, wherein the injection aperture is configured to direct the airflow towards the faired body and the faired body is shaped to redirect the airflow in a lateral direction parallel to the second surface of the heat shield panel such that a cross flow is generated in the impingement cavity.