Stirring blade, stirring device, and stirring method
AssigneeSumitomo Heavy Industries Process Equipment Co., Ltd.
InventorsShoji MORINAGA, Katsuhide Takenaka, Aya Tanaka
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Abstract
A stirring blade that stirs a fluid by rotating around a rotary shaft, in which a flow of the fluid in which a Reynolds number is 300 or more and a ratio of a deformation rate tensor with respect to a velocity gradient tensor of the fluid that is a sum of the deformation rate tensor and a rotational speed tensor is 0.8 or more in a region of 5% or more in the flow is generated.
Claims18
A stirring blade that stirs a fluid by rotating around a rotary shaft,
- wherein a flow of the fluid in which a Reynolds number is 300 or more and a ratio of a deformation rate tensor with respect to a velocity gradient tensor of the fluid that is a sum of the deformation rate tensor and a rotational speed tensor is 0.8 or more in a region of 5% or more in the flow is generated.
A stirring blade that stirs a fluid by rotating around a rotary shaft, the stirring blade comprising:
- two or more and five or less plate-shaped members that are rotatable at two or more and five or less different positions in a radial direction perpendicular to an axial direction in which the rotary shaft extends,
- wherein a spacing in the radial direction between a set of two plate-shaped members adjacent to each other in the radial direction is 1.5 times to 2.5 times a width of at least one of the plate-shaped members in the radial direction.
A stirring device comprising:
- a stirring blade that stirs a fluid contained in a stirring tank by rotation,
- wherein the stirring blade generates, within the stirring tank, a flow of the fluid in which a Reynolds number is 300 or more and a ratio of a deformation rate tensor with respect to a velocity gradient tensor of the fluid that is a sum of the deformation rate tensor and a rotational speed tensor is 0.8 or more in a region of 5% or more in the flow.
A stirring method of stirring a fluid contained in a stirring tank by rotation of a stirring blade,
- wherein a flow of the fluid in which a Reynolds number is 300 or more and a ratio of a deformation rate tensor with respect to a velocity gradient tensor of the fluid that is a sum of the deformation rate tensor and a rotational speed tensor is 0.8 or more in a region of 5% or more in the flow is generated within the stirring tank by the stirring blade.
Dependencies are inferred from the claim text.