Mixed flow turbine and turbocharger

A mixed flow turbine comprising:

• a turbine wheel including
• a hub, and
• blades provided on an outer peripheral surface of the hub at intervals in a circumferential direction of the hub,
• wherein tip ends of leading edges of the blades are positioned on an outer side in a radial direction of the turbine wheel with respect to hub ends of the leading edges, and
• when a distance between a downstream end of the outer peripheral surface of the hub and a rotational axis of the turbine wheel is defined as Dh and an average value of distances between each position from the hub ends to the tip ends at the leading edges and the rotational axis is defined as Eave, a relationship Dh/Eave>0.4 is satisfied,
• wherein the mixed flow turbine further comprises:
• a casing that accommodates the turbine wheel,
• wherein the casing includes
• a tubular shroud wall that accommodates the turbine wheel,
• a scroll outer peripheral wall that is connected to one end side of the shroud wall and that extends along the circumferential direction, and
• a dividing wall that is provided on an inner side of the scroll outer peripheral wall and that partitions an inside of the scroll outer peripheral wall into a front side scroll flow path and a rear side scroll flow path that are arranged in an axial direction of the turbine wheel,
• wherein in a cross section including the rotational axis, an angle formed by an extension line of a tip end of the dividing wall and the rotational axis on a back surface side of the turbine wheel is smaller than 90 degrees, and
• wherein in a cross section including the rotational axis, the extension line intersects the leading edge at a radially inner side with respect to a midpoint point in the radial direction of the leading edge.