• Non ci sono risultati.

Table of Contents

N/A
N/A
Info
Scarica
Protected

Academic year: 2021

Condividi "Table of Contents"

Copied!
3
0
0

Caricamento.... (Visualizza il testo completo ora)

Scarica adesso ( 3 pagine )

Testo completo

(1)

Table of Contents

1 Introduction and scope of the work 1

2 Literature Review 3

2.1 Theory on stirred vessels 3

2.2 Flow Measurements 5 2.2.1 Single point measurements 5 2.2.2 Whole flow field measurements 8

2.3 Power number 11

2.4 Flow number 13

2.5 Turbulent kinetic energy 14

2.6 Local energy dissipation rates 16 2.6.1 Energy dissipation and PIV 18

2.7 Vorticity 23

3 Material and methods 24

3.1 Vessel and impeller 24

3.2 Measure of the power number 26

3.3 Vessel configuration and PIV 26

3.4 Angle resolved measurements 28

4 Results and discussion

4.1 Comparison of power number and power

consumption for the two flow configurations 29

4.2 Power characteristics and time-averaged flow field for a PBT in up-pumping and down

pumping configurations 31 4.2.1 Time averaged flow field and instantaneous flow profiles 31

(2)

4.2.2 Comparison between time averaged flow field configurations 32 4.2.3 Turbulent kinetic energy 33

4.2.4 Vorticity 36 4.2.5 Flow number evaluation 37

4.3 Angle resolved PIV measurements for a PBT

impeller in up-pumping and down-pumping

configurations 38

4.3.1 Angle resolved flow field 38 4.3.2 Turbulent kinetic energy 41 4.3.3 Energy dissipations rates evaluated through

dimensional analysis 43

4.3.4 Direct calculation from the definition 45 4.3.5 Large eddy PIV method 47 4.3.6 Energy evaluation comparison 49

4.3.7 Vorticity 51 4.3.8 Flow number as a function of the blade angle 53

5 Conclusions 54

Appendix I: Integral length scale 57

Appendix II: MatLAB® M-Files 61

Bibliography 67

(3)

Riferimenti

Scarica adesso ( PDF - 3 pagine - 23.44 KB )

Documenti correlati

TABLE OF CONTENTS

Dual Fuel Combustion Using Detailed Chemistry and Flame Propagation

Table of Contents

Appendix A: Anode Supply Mass Assessment

Table  of  Contents

The Adaptive Control Plans objective is to make better use of network spectral resources and maximize the number of optical paths within the available spectral constraint: the

Table of Contents

Figure 6.21: DIC resulting images on a wet lay-up 2.5mm notched specimen, can be noticed the relationship between the markers on the left of every specimen with the low strain

Table of Contents

I will mention the debate over Literal and Free translation, the different devices in order to translate a text, the goal of maintaining equivalence

TABLE OF CONTENTS

In the very first section of this chapter I investigate modality in native speakers‟ (NS) academic writing, in order to see which choices expert writers make and why; in

Table of contents.

The catalytic behaviour of the monocationic complex with Ar,Ar′-BIAN in the ethylene/methyl acrylate copolymerisation has been compared to that of the complexes with

Table of contents

Debates over the concept of region are not only in fashion but also necessary when defining the place and role of the regional development policy. The definition more spread