A microfluidic system for fluid transport is provided. The microfluidic system includes a microfluidic device. The microfluidic device includes an inlet body including an inlet. The microfluidic device includes a base supporting the inlet body. The base includes a channel in fluid communication with the inlet. The base includes one or more sensors formed on a surface of the channel, or one or more sensors formed in one or more wells formed in the surface of the channel. The channel is configured to facilitate flow of the fluid. The fluid includes a plurality of beads. The fluid includes a plurality of suspended cells. The inlet is configured to receive the fluid at an inlet port. The inlet is configured to output the fluid through an opening in fluid communication with the channel. The inlet is configured to provide substantially uniform flow of the fluid across a substantial portion of a horizontal dimension of the channel. The device is configured to compensate for edge effects otherwise present therein. Related methods, apparatuses, systems, techniques and articles are also described.

A microfluidic system for fluid transport is provided. The microfluidic system includes a microfluidic device. The microfluidic device includes an inlet body including an inlet. The microfluidic device includes a base supporting the inlet body. The base includes a channel in fluid communication with the inlet. The base includes one or more sensors formed on a surface of the channel, or one or more sensors formed in one or more wells formed in the surface of the channel. The channel is configured to facilitate flow of the fluid. The fluid includes a plurality of beads. The fluid includes a plurality of suspended cells. The inlet is configured to receive the fluid at an inlet port. The inlet is configured to output the fluid through an opening in fluid communication with the channel. The inlet is configured to provide substantially uniform flow of the fluid across a substantial portion of a horizontal dimension of the channel. The device is configured to compensate for edge effects otherwise present therein. Related methods, apparatuses, systems, techniques and articles are also described.

A guide element for hydraulic fluid includes a first end surface, a second end surface, and an exterior surface connecting the first end surface to the second end surface. The first end surface includes a first chamfered opening. The second end surface includes a second opening that fluidly communicates with the first opening to define a longitudinal bore that includes a tapered section. The first chamfered opening and the tapered section are configured to guide the hydraulic fluid to facilitate transformation of a turbulent flow of the hydraulic fluid into a laminar flow of the hydraulic fluid.

A guide element for hydraulic fluid includes a first end surface, a second end surface, and an exterior surface connecting the first end surface to the second end surface. The first end surface includes a first chamfered opening. The second end surface includes a second opening that fluidly communicates with the first opening to define a longitudinal bore that includes a tapered section. The first chamfered opening and the tapered section are configured to guide the hydraulic fluid to facilitate transformation of a turbulent flow of the hydraulic fluid into a laminar flow of the hydraulic fluid.

The invention relates to a flow conditioner for conditioning a fluid flow comprising a pipe having a constriction with a reduced pipe cross-section, at least one ring-shaped element arranged inside the pipe which has an outer diameter which is smaller than the inner diameter of the pipe in the axial region of the pipe in which the at least one ring-shaped element is arranged, and having an areal web whose surface normal is not in parallel with the pipe axis. The invention further relates to a throughflow measurement system for measuring a fluid throughflow through a pipe having a measurement device and a flow conditioner in accordance with the invention arranged upstream of the measurement device.

The invention relates to a flow conditioner for conditioning a fluid flow comprising a pipe having a constriction with a reduced pipe cross-section, at least one ring-shaped element arranged inside the pipe which has an outer diameter which is smaller than the inner diameter of the pipe in the axial region of the pipe in which the at least one ring-shaped element is arranged, and having an areal web whose surface normal is not in parallel with the pipe axis. The invention further relates to a throughflow measurement system for measuring a fluid throughflow through a pipe having a measurement device and a flow conditioner in accordance with the invention arranged upstream of the measurement device.

Flow paths and boundary layer restart features are provided. For example, a flow path comprises a flow path wall defining an inner flow path surface and an asymmetric notch defined in the flow path wall. The asymmetric notch comprises a first surface and a second surface and is asymmetric about a first line extending through an intersection of the first and second surfaces. Further, a flow boundary layer restart feature comprises a first surface extending inward with respect to a flow path surface of a flow path and a second surface extending inward with respect to the flow path surface. The second surface is asymmetric with respect to the first surface such that the first and second surfaces define an asymmetric notch. Additionally, a flow path wall may comprise an asymmetric notch that includes a flow expansion angle and a flow contraction angle that are unequal.

A system provides warm, humidified gas to a patient via a patient interface. Horizontal connections can be used between the humidification chamber and conduit. To reduce the likelihood of condensate flowing back to the humidification chamber, or dead space or gases recirculation regions occurring within the gases flow path, a raised portion is positioned inside of the flow path to improve flow characteristics and to provide a barrier for condensate back flow. The raised portion also reduces the amount of condensate that is formed in the system and provides better flow characteristics for sensing purposes.

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.

A flow conditioning assembly comprising an integral elbow flow conditioner and a downstream flow conditioner. The elbow flow conditioner includes a pipe elbow with one or more flow conditioning elements. Each flow conditioning element includes one or more turning guides. Each turning guide is generally circular and radially spaced from one another and an inner surface of the elbow. Spaced vanes maintain the radial spacing of the turning guides. The vanes divide the radial space between the turning guides and pipe elbow into a plurality of flow channels that turn in generally the same direction as the inner surface of the pipe elbow. The downstream flow conditioner comprises a flow conditioning structure within a pipe element. The flow conditioning structure includes one or more flow guides of generally circular form radially spaced from one another and the pipe element. Spaced support vanes maintain the radial spacing of the flow guides.