Notes

Slide Show

Outline

1	Integrating Simulation and Design for Stormwater Management by Alan A. Smith Alan A. Smith Inc. Dundas, Ontario, Canada
2	A SWMM Program Classification Scheme
3	Representing a Drainage Network as a Tree
4	A node numbering convention
5	A time-wise marching solution
6	A downstream marching solution
7	Hydrology options in MIDUSS 98
8	Design options in MIDUSS 98 Pipes - part-full uniform flow - surcharged HGL Channels - simple trapezoidal - complex (50 points) Pond - detention, rooftop, parking lot, super-pipe Exfiltration trench - split inflow between outflow and exfiltration Diversion - split major and minor flows Route - modified Muskingum-Cunge method
9	Benefits of On-Site Detention (for commercial developments)
10	Idealized discretization of a commercial development
11	"Define catchment 100%" Define catchment 100% impervious For 450 sq.m./RD set L = 10 m @ 0.5% Generate runoff hydrograph Add to Inflow hydrograph Design pond - use Rooftop option Confirm/edit parameters 24 litres/min/25mm Route hydrograph
12	Rooftop storage - Q,V = f(H)
13	Rooftop storage - Results
14	Parking lot storage (1)
15	Parking lot storage (2)
16	Parking lot storage (3)
17	Flood routing
18	Muskingum-Cunge method
19	Running in Automatic mode
20	Running in Automatic mode
21	Edit Panel and Control Panel
22	Applications of MIDUSS 98 Program functionality has been developed over many years of professional practice. Has proved valuable in ‘fleshing out’ Master Drainage Plans to separate local and centralized SWM facilities Most recent application in Belleville, Ontario to 400 ha catchment to assign cost sharing among two municipalities, 8 to 10 new developments and many existing developments.
23	Conclusions Drainage design cannot easily separate simulation and design
24	Conclusions Drainage design cannot easily separate simulation and design Design process needs a highly interactive decision support system
25	Conclusions Drainage design cannot easily separate simulation and design Design process needs a highly interactive decision support system Automatic mode allows sensitivity of design to storm magnitude to be tested incrementally.
26	Conclusions Drainage design cannot easily separate simulation and design Design process needs a highly interactive decision support system Automatic mode allows sensitivity of design to storm magnitude to tested be incrementally. Versatile hydrology simulation and flexible, interactive design provides a training tool for professional and student.