Ceramic honeycomb bodies and method for canning thereof

A method of treating engine exhaust flow with a honeycomb body in an exhaust configuration comprising a can, an inlet pipe connected to the can, and the honeycomb body, the honeycomb body comprising a plurality of cells and a central longitudinal axis, the method comprising:

• delivering the exhaust flow to the exhaust configuration, the exhaust flow having an asymmetric fluid flow velocity profile, wherein the honeycomb body is circumferentially positioned within the can such that a first portion of the cells with a first concentration of protrusions coincides with a first area of the exhaust flow and a second portion of the cells coincides with a second area of fluid flow, wherein the first portion of cells has a geometric center which is offset from the central longitudinal axis as viewed in a transverse plane perpendicular to the longitudinal axis, wherein the first area has a higher fluid flow than the second area, and wherein the second portion comprises a second concentration of protrusions or lacks protrusions, wherein a periphery of the first portion of cells defines a shape as viewed in the transverse plane perpendicular to the longitudinal axis and the shape is asymmetric about at least one axis of the shape.

A method of installing a honeycomb body in an exhaust configuration for use with an exhaust flow having an asymmetric fluid flow velocity profile, the exhaust configuration comprising a can and an inlet pipe connected to the can, the honeycomb body comprising a plurality of cells and a central longitudinal axis, the method comprising:

• circumferentially aligning the honeycomb body within the can such that a first portion of the cells with a first concentration of protrusions to coincide with a first area of the exhaust flow and a second portion of the cells to coincide with a second area of fluid flow, wherein the first portion of cells has a geometric center which is offset from the central longitudinal axis as viewed in a transverse plane perpendicular to the longitudinal axis, wherein the first area has a higher fluid flow than the second area, and wherein the second portion of cells comprises a second concentration of protrusions or lacks protrusions, wherein a periphery of the first portion of cells defines a shape as viewed in the transverse plane perpendicular to the longitudinal axis and the shape is asymmetric about at least one axis of the shape.