Thermodynamics and Fluids II Laboratory tests and - Lab Report Example

The potential to kinetic energy conversion takes place in the stagnation point; the point situated at the Pitot’s tube entrance, as see in the schematic diagram below, Figure 2 below. A pressure higher or greater than the free-stream pressure, that is dynamic, results from the conversion kinematic to potential. This "static" pressure is obtained by comparing it to the dynamic pressure of flow with the differential manometer (Çengel and Cimbala, 2014). The conversion of the resulting differential pressure measurements into respective fluid velocity heavily depends on the specified fluid’s flow regime a Pitot tube is measuring (Spurk and Aksel, 2008).

In case of an incompressible flow, below is the Bernoulli equation describing the relationship between the pressure and velocity along the streamline: The simple pitot tube is comprised of an opening at the tip where pressure can be compared with the atmospheric pressure, or the pressure at pipe through that the flow passes (Boyes, 2010). The Pitot tube is when taking the local velocity measurements at the given point of the flow. The speed of airflow is determined when there is change in pressure between the two holes found in the Pitot tube; known via head (Kundu, Cohen and Dowling, 2012).

Therfoe the speed of airflow is calculated using Bernoulli’s equation: The purpose of this laboratory was to analyze jet pumps using knowledge of fluid mechanics learned in the course. Assumptions of steady flow and no friction were applied and these theoretical results will be compared to the experimental results obtained by measuring the flow at the end of the jet pump. The SI units were used during the analysis for easy conversion among different variable. Head was directly proportional to actual pressure, high heads translated into high velocities; the fast jet had a large head drop.

The pitot tubes are greatly affected by the Reynolds number when operating at low fluid velocities. Pitot tube’s accuracy