A tube assembly for use in a fuel injection assembly of a turbine engine is provided. The tube assembly includes a housing, and a plurality of tube assembly units positioned adjacent to one another within the housing such that each tube assembly extends along a longitudinal axis of the housing. Each tube assembly unit includes a tube, and a plurality of flanges extending radially outward from each tube, wherein flanges of adjacent tube assembly units form at least a portion of at least one wall within the housing.
FEDERAL RESEARCH STATEMENT
 This invention was made with Government support under Contract No. DE-FC26-05NT42643, awarded by the Department of Energy (DOE), and the Government has certain rights in this invention.