Centrifugal compressor

A centrifugal compressor comprising:

• a housing including an intake flow path;
• a compressor impeller disposed in the intake flow path;
• an accommodation chamber formed upstream of the compressor impeller in a flow of an intake air in the housing;
• and
• a movable member disposed in the accommodation chamber and configured to be movable in a radial direction of the compressor impeller between a retracted position where the movable member is retracted from the intake flow path and a protruding position where the movable member protrudes from the accommodation chamber into the intake flow path,
• wherein the accommodation chamber includes a wall surface positioned upstream of the movable member and facing the movable member in an axial direction of the compressor impeller, and
• wherein the wall surface includes a contacting portion that is contactable with the movable member in the axial direction, and a non-contacting portion that is non-contactable with the movable member, the non-contacting portion being a depressed portion that is depressed from the wall surface toward an inlet of the housing.