Experiment 1: Pressure, Temperature, and Velocity Measurement Objective: The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement. Equipment: Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel. Part 1: Measurement of Atmospheric Pressure and Density 1. Read the barometer and wind-tunnel thermocouple. 2.
2. "F = ma: the net force on an object is equal to the mass of the object multiplied by its acceleration." 3. "To every action there is an equal and opposite reaction." To prove the 1st law, you can see that the air released from the balloon disturbs the state of rest of the car and makes it move.
Be sure to address the concepts of center of pressure and aerodynamic center, as well as any pitching moments occurring on the airfoils Lift is the force that directly opposes the weight of the airplane. The first theorem addressing lift is Bernoulli’s principle. The airfoil travels through the air the shape of the airfoil creates a lower pressure above the wing and a higher pressure below the wing. This pressure differential causes the airfoil to be pushed upward and lift is a result. The second theorem is simply Newton’s third law where air is forced downward so there is a reaction of the airfoil being pushed upward (lift).
Name that gas. CO2 Results Table 3. Effect of Hypercapnia on Pulmonary Ventilation 0.04% carbon dioxide (normal air) MV pCO2 pO2 pH (L/min) (mmHg) (mmHg) 6.2 39.1 102.7 7.41 6.1 39.3 107.8 7.38 6.1 40.1 102.4 7.4 6.1 39.5 104.3 7.4 4% carbon dioxide pCO2 pO2 (mmHg) (mmHg) 43 102.3 44.4 101.6 42.7 98.1 43.4 100.7 MV (L/min) 10.36 8.74 10.12 9.7 2% carbon dioxide pCO2 pO2 (mmHg) (mmHg) 41.6 100.3 41.6 105.5 42.2 104 41.8 103.3 6% carbon dioxide pCO2 pO2 (mmHg) (mmHg) 47.6 101.2 46.5 99.7 47.3 93.7 47.1 98.2 pH 7.38 7.4 7.38 7.39 Subj. 1 Subj. 2 Subj.
Positive (+) 1.00 is the strongest or perfect positive relationship and indicates that variables change together, either increasing or decreasing simultaneously. Negative (–) 1.00 is the strongest or perfect negative relationship and indicates that variables change in opposite directions: as one variable increases another variable decreases. 3. Describe the direction of the relationship between the Hamstring strength index 60/s and the Shuttle run test. The relationship between Hamstring strength index 60 degree/s and the Shuttle run test is a negative relationship due to r moves away from zero in negative direction and r = −0.149, the strength of this negative relationships would be weak with r -0.5 r=-0.528**, is more significant since p =0.002< 0.01, where r = −0.498** is significant at p =0.004< 0.01.
F2:IMPACT OF A JET REPORT AUTHOR: FAITH MURDATE: 30/03/2012 2012 UNIVERSITY OF LEICESTER ENGINEERING DEPARTMENT Table of Contents SUMMARY 3 INTRODUCTION 4 Aims 4 PROCEDURE 6 APPARATUS USED: 6 Steps followed: 6 RESULTS 7 Hemispherical plate 7 Flat plate 8 Calculation of mass flow rate using experiment values 10 DISCUSSION 11 CONCLUSION 11 REFERENCES 12 Appendices 13 SUMMARY In this experiment the force generated by the jet of water striking a flat plate or a hemispherical cup is measured and results are compared to those of the computed flow rate in the jet. Through the use of simple moments an equation was derived so that the force exerted by the jet using the jockey weight , the graduated length of the pivot arm, and the distance from the pivot to the jet acting at zero point of the jockey weight will be measured. The force acting on the surfaces for various flow rates is also measured. Results are represented in a table and in form of graphs. INTRODUCTION Aims * To study the forces resulting from the impact of jet when it hits a flat or hemispherical cup * To compare the force produced to the momentum flow rate in the jet * To compare theoretical results of the force to the experiment calculated result Over the past periods, engineers have found various ways to make use of the force that can be generated by a jet of fluid when it hits a surface.
CIVL 394 Earthworks Report Rhys Horsley - 3670946 William Tapia – 3638960 Daniel Roy – 3882810 Scott Papworth – 3457916 September 21st 2012 List of Tables Table 1: Scrapers Required for Scenario 1 7 Table 2: Dozer Types 7 Table 3: Hire Rates for Scenario 1 8 Table 4: Excavator summary for Scenario 2 10 Table 5: Dump Truck Specifications 11 Table 6: Hire Rates for Scenario 2 12 Table 7: Hire Rates for Scenario 3 14 Table 8: Dozer Production 15 Table 9: Loader Production Rates 16 Table 10: Hire Rates for Scenario 4 17 Table 11: Roller Production and Cost 18 List of Figures Figure 1: Table 4-7 from Construction Methods and Management - S.W. Nunnally 6 Figure 2: Table 4-8 from Construction Methods and Management - S.W. Nunnally 8 Figure 3: Cat dump truck travel speeds 11 Figure 4: Komatsu Dump truck travel speeds 11 Figure 5: Table 4-5 from Construction Methods and Management - S.W. Nunnally 15 Figure 6: Table 4-4 from Construction Methods and Management - S.W. Nunnally 15 Figure 7: Table 4-6 from Construction Methods and Management - S.W.
As mentioned above the swirl number is defined as the ratio of the angular momentum (with respect to the cylinder axis) to the axial momentum of the flow, see Eq. (1). Figure 17 shows a swirl number comparison between experiment and DES. As seen for the velocities, the simulation shows the same trend like the experiment and a general good agreement with slight differences in the second half of the tube. The simulated swirl number is a bit higher due to the higher maximum of the circumferential velocity profile seen in Fig.
28 October 2008 Introduction: Static and kinetic friction are forces that are a result of two surfaces in contact with each other. Static friction is the force that must be overcome to cause an object to begin moving, while kinetic friction occurs between two objects in motion relative to each other. The kinetic friction force, Ff, kinetic, is defined by Ff, kinetic = μkFN, where μk is the coefficient of kinetic friction and FN is the normal force acting on the object. The maximum static frictional force Ff, max static, is defined by Ff, static = μsFN where μs is the coefficient of static friction and FN is the normal force on the object. The maximum frictional force that must be overcome before movement is able to begin is μsFN.
Mathematical Relationships The relationship between acceleration, velocity and distance will help us to model the performance of the car. Relation of force (N) to mass (kg) and acceleration (m/sec2): Relation of velocity (m/sec) to acceleration (m/sec2): Relation of distance (m) to velocity (m/sec): Drag and Wind resistance The effect of wind resistance will be modelled as the additional force which takes effect at velocities greater than v1. According to the equation Fd = Fd0 (1 + b(v �� v1)2) the drag force will increase for velocities v > v1. In this case study there will be a low velocity drag force acting on velocities 20 m/s or less and an