Low-Cost Pressure Probe Sensor for Predicting Turbulence-Induced Vibration From Invasive Low-Velocity Turbulent Flow Measurements

Measuring high-intensity turbulence with fast response pressure probe sensors has proved to be an effective and accurate technique; unfortunately, according to the available literature, most pressure probe research focuses primarily on high-velocity (>100 m/s) applications. Commercially available pressure probe sensor systems are available; however, most designs are intended for not only high-velocity flow but also for high bandwidth (~10 kHz) and multidirectional applications, which drastically increase cost and complexity. Extremely limited options exist for those seeking a simple yet sensitive and accurate unidirectional turbulent flow measurement method; therefore, the intended purpose of this paper is to provide a means for future scientists and engineers to develop a pressure probe sensor tailored to their specific needs. Research presented in this paper focuses on the design and analysis of two high-sensitivity, low-cost pressure probes for invasive measurements in low-velocity (<;20 m/s) highly turbulent air flow. The pressure probe design, calibration techniques, and modeling are discussed and experimentally validated.