Gas turbine engine combustor with openings

A combustor for a gas turbine engine defining an engine rotational axis, the combustor comprising:

• an annular combustor liner at least partially encasing a combustion chamber;
• a dome wall coupled to the annular combustor liner, the dome wall at least partially defining the combustion chamber;
• at least one fuel nozzle located on the dome wall and fluidly coupled to the combustion chamber;
• and
• a set of openings at least partially provided in the dome wall and arranged as a first set of openings and a second set of openings, wherein the first set of openings are radially aligned, wherein the second set of openings are radially aligned, and wherein each opening of the set of openings defines a flow path streamline;
• wherein the first set of openings are circumferentially offset from the second set of openings, and wherein the flow path streamlines from the first set of openings intersect the flow path streamlines from the second set of openings at an intersection to form a sheet of air at the intersection of the flow path streamlines.

A gas turbine engine comprising:

• a compressor section, combustor section, and turbine section defining an engine rotational axis, the combustor section comprising:
• a combustor liner at least partially defining a combustor chamber;
• a dome wall, coupled to the combustor liner, and defining a forward end of the combustion chamber;
• a first fuel nozzle located on the dome wall and fluidly coupled to the combustion chamber;
• a first set of openings, with each opening of the first set of openings emitting air into the combustion chamber along a first flow path streamline;
• and
• a second set of openings, with each opening of the second set of openings emitting air into the combustion chamber along a second flow path streamline;
• wherein the first set of openings and the second set of openings are arranged as multiple pairs of openings, and wherein the first flow path streamline intersects the second flow path streamline for each pair of openings at an intersection point to form a sheet of air for each pair of openings of the multiple pairs of openings;
• and
• wherein the sheets of air among the multiple pairs of openings comprise at least one sheet of air on a first circumferential side of the first fuel nozzle and at least one sheet of air on a second circumferential side, opposite the first circumferential side.

A gas turbine engine comprising:

• a compressor section, combustor section, and turbine section defining an engine rotational axis, the combustor section comprising:
• a combustor liner at least partially defining a combustor chamber;
• a dome wall comprising a set of dome wall segments, coupled to the combustor liner, and defining a forward end of the combustion chamber;
• a first fuel nozzle located on the dome wall and fluidly coupled to the combustion chamber;
• a first opening emitting air into the combustion chamber along a first flow path streamline;
• and
• a second opening emitting air into the combustion chamber along a second flow path streamline;
• wherein the first opening is provided in a first segment of the dome wall, and the second opening is provided in an adjacent second segment of the dome wall;
• and
• wherein the first flow path streamline intersects the second flow path streamline at an intersection point to form a sheet of air.

A gas turbine engine comprising:

• a compressor section, combustor section, and turbine section defining an engine rotational axis, the combustor section comprising:
• a combustor liner at least partially defining a combustor chamber;
• a dome wall comprising a set of dome wall segments, coupled to the combustor liner, and defining a forward end of the combustion chamber;
• a first fuel nozzle located on the dome wall and fluidly coupled to the combustion chamber;
• a first opening emitting air into the combustion chamber along a first flow path streamline;
• and
• a second opening emitting air into the combustion chamber along a second flow path streamline;
• wherein the dome wall includes a set of dome wall segments, wherein at least one of the first opening and the second opening spans adjacent segments of the set of dome wall segments;
• and
• wherein the first flow path streamline intersects the second flow path streamline at an intersection point to form a sheet of air.