Additively manufactured intermediate duct for disposition between a low-pressure compressor and a high-pressure compressor, and corresponding manufacturing method

An intermediate duct for disposition between an outlet of a low-pressure compressor and an inlet of a high-pressure compressor of a turbomachine, the intermediate duct comprising:

• an outer wall;
• an inner wall;
• at least strut disposed between the outer wall and the inner wall and extending radially with respect to a central axis of the intermediate duct;
• the intermediate duct at least partially manufactured by additive manufacturing;
• the strut having a surface with a curvature with respect to a plane defined by the radial and axial directions so as to define an out-of-plane curvature in the circumferential direction;
• wherein a radial shape of the at least one strut lies within a first boundary contour and a second boundary contour, at least in the region of a trailing edge, the first boundary contour being defined by the formula (I):
• y=71.14x5−179.74x4+134.76x3−2.6539x2−27.72x+5.5815 (I)
• and the second boundary contour being defined by the formula (II):
• y=71.14x5−179.74x4+134.76x3−2.6539x2−27.72x+1.5815 (II),
• where x denotes the percentage of the radial height of the strut from the inner wall of the intermediate duct in the region of its trailing edge, and y denotes the deviation, in degrees, in the circumferential direction from a hypothetical linear trailing edge contour having a constant radial shape at 0°.