WSP07331

• File Number: 8220.200.05.J
• Description: Hoover Dam/Lake Mead/Boulder Canyon Project
• Basin: Colorado Mainstem
• Date: 1/1/1938
• Author: USDOI/BOR
• Title: Boulder Canyon Project Final Reports: Part VI/ Bulletin 2 - Model Studies of Penstocks and Outlet Works
• Water Supply Pro - Doc Type: Report/Study

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CONTENTS

SECTION PAGE
Introductory Statement ............................_n................:...n_.hhh.___u______....___.. ii
Engineering Organization During Construction..........____.__..____....__........... vi
Foreword ............................__..................._.._._......._...............n_nnn..__................. vii

CHAPTER I-INTRODUCTION AND SUMMARY

INTRODUCTION

1. Scope of Bulletin................................................................................h......h...... 7
2. Laboratory and general equipment............___.__n_..hh...............................u..n 7
.3. Personnel _.........._......__..._.__....h.............h_n_u...n_...__.__unnn._...._...nun_.............. 10
4. Penstock symbols .......................................h................................................... 11
5. Intake tower syznbols....................................._n.__u_n._un_n............................ 12

SUMMARY

6. Results h...................................h.h..........h.......................................................... 13
7. Changes in design..................._n...nnn_...............__n..............nn..nn_..__..''''''n_. 14

CHAPTER II-TESTS FOR PENSTOCK JUNCTION LOSSES

VISUAL TESTS

8. Purpose ...............................h..................................h.......h................................ 15
9. Apparatus and proceduren...................n_n_.....n._....._.n_..n.........__............._.__.. 16
10. Results and conclusions........._n.._...nn_n................__.............................n.._.__.... 18

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QUANTITATIVE TESTS

11. Purpose ...................................h.............................................................h.......... 28
12. Apparatus and procedure..h.........................hh..............................h............... 26
13. 4.33.inch branch friction calihration...............n_n_._....n.........n.............n..... 29
14. Ten,inch friction calibration.......................................................................... 35
15. Evaluation of junction losses....m.................._......._,_m................................... 38
16. Reduction of junction losses___..mm................._mn...._..._.._............n...__........ 44
17. Static pressures at lOS-degree junction.....m....._._..n..m_...............m__n...... 48
18. Tests on a right-angle junction............._...nm..........................n._.m............ 49
19. Static pressures at a right-angle junction....n._...............n....m.._m............ 57
20. Velocity distribution in main pipe...........................h......................h........... 60
21. Summary and cODclusioDs........_...........n....m...._........._........n_nm.m._._......m._. 63

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