Why your Goldacres WEEDTECT Section Select should have non Air Induction nozzles.
Our optimum solution for you uses CFLD-C100° 02's 025's with CFDL-C80° at the section ends to eliminate wasted edges - Dave😊
The air induction nozzle, with its Venturi design and internal mixing chamber, requires additional time to fill the chamber with liquid and establish steady air entrainment for proper droplet formation and pattern stability. Based on typical internal geometries from computational fluid dynamics studies (e.g., a conical mixing chamber approximately 10 mm long diverging from a 3.2 mm throat diameter to a 4.2 mm discharge diameter), the chamber volume is roughly 1.08 × 10⁻⁷ m³.At 3 bar pressure, a typical agricultural flat fan nozzle with an 80-degree angle (e.g., comparable to an 8003 size) has a flow rate of about 0.787 L/min (1.31 × 10⁻⁵ m³/s). The time to fill this volume is calculated as:volume / flow_rate = (1.08 × 10⁻⁷) / (1.31 × 10⁻⁵) ≈ 0.008 seconds (8 ms).In contrast, a non-air induction nozzle has minimal internal volume (e.g., equivalent to a thin orifice slot ~1 mm thick with ~1 × 10⁻⁹ m³ volume), resulting in a negligible fill time of ~0.08 ms.Thus, the estimated time difference is approximately 8 milliseconds, with the air induction nozzle taking longer. This is a rough estimate based on physics and representative dimensions; actual values can vary by specific nozzle model, liquid properties, and exact geometry. In practice, this difference becomes more noticeable in pulsed spraying systems like PWM, where air induction nozzles can exhibit inconsistent patterns at short on-times (e.g., low duty cycles).