Blade with internal rib having corrugated surface(s)

A blade comprising:

• an airfoil body defined by a concave pressure side outer wall and a convex suction side outer wall that connect along leading and trailing edges and, therebetween, form a radially extending chamber for receiving the flow of a coolant, the airfoil body having an outer surface and an inner surface facing the radially extending chamber;
• a first corrugated surface on at least a portion of the outer surface of the airfoil body;
• a first rib partitioning the radially extending chamber into a first passage on a first side of the first rib facing one of the concave pressure side outer wall and the convex suction side outer wall, and an adjacent second passage on an opposing, second side of the first rib;
• a second corrugated surface on at least a portion of the second side of the first rib;
• and
• at least one of:
• a third corrugated surface on the inner surface of the airfoil body, the third corrugated surface paralleling the first corrugated surface, and
• a fourth corrugated surface on the first side of the first rib, the fourth corrugated surface paralleling the third corrugated surface.

A non-transitory computer readable storage medium storing code representative of a blade, the blade physically generated upon execution of the code by a computerized additive manufacturing system, the code comprising:

• code representing the blade, the blade including:
• an airfoil body defined by a concave pressure side outer wall and a convex suction side outer wall that connect along leading and trailing edges and, therebetween, form a radially extending chamber for receiving the flow of a coolant, the airfoil body having an outer surface and an inner surface facing the radially extending chamber;
• a first corrugated surface on a first portion of the outer surface of the airfoil body;
• a first rib partitioning the radially extending chamber, the first rib including a first side and an opposing second side;
• and
• a second corrugated surface on at least a portion of at least one of the first and second sides of the first rib.