A work vehicle includes a delivery system with a run. The run includes an upstream flow structure having an inlet that is configured to receive metered commodity and a suction generator structure with a flow passage that is in fluid communication with the inlet. The flow passage includes a venturi profile with a restricting section and an expanding section. Furthermore, the run includes a downstream flow structure configured to receive the metered commodity via the flow passage and an airstream that conveys the metered commodity in a downstream direction through the downstream flow structure. A compressed air source is configured to provide pressurized air through the flow passage to create suction to suck the metered commodity away from the metering system and toward the downstream flow structure.