SWMM5 Link Upstream Weighting

SWMM5 Link Upstream Weighting

Purpose: The purpose of this note is to explain a significant dynamic wave routing difference between EPA SWMM 5.0.013 and EPA SWMM 5.0.011 and before. A few people have detected a difference. The previous solution(s) would use only the midpoint area (Amid) and hydraulic radius (Rmid) in the dynamic wave solution. The new solution will use a slider or linear combination of the midpoint area (Amid) and hydraulic radius (Rmid) and the upstream cross sectional area (A1) and hydraulic radius (R1). The slider is based on the Froude number in the link.

Purpose: The purpose of this note is to explain a significant dynamic wave routing difference between EPASWMM 5.0.013/5.0.018 and EPA SWMM 5.0.011 and before. A few people have detected a difference. The previous solution(s) would use only the midpoint area (Amid) and hydraulic radius (Rmid) in the dynamic wave solution. The new solution will use a slider or linear combination of the midpoint area (Amid) and hydraulic radius (Rmid) and the upstream cross sectional area (A1) and hydraulic radius (R1). The slider is based on the Froude number in the link. The change involves the A and R link spacing in the two dominant terms of the St. Venant Equation: The new method is a linear combination or slider that weights the value of A and R in the St. Venant Equation based on the value of rho (), or where, Rho () is a function of the Froude number. The effect of this addition is that as the Froude number increases from 0.5 to 1.0 and beyond the area and hydraulic radius used as the pivot point in the St. Venant equation moves from the midpoint of the link to the upstream end of the link. When the Froude number is above 1.0 the St. Venant and Normal Flow equation both use the same cross sectional area and hydraulic radius which makes for a more stable model. Just for reference, the equation for Qnorm or the Manning's Equation flow is The equations for the calculation of Rho () as a function of the Froude Number (Fr) are:

If ALL of the follow conditions are true Rho ()is calculated:

the pipe is not full,
h1 >= h2, and
qLast > 0.

where, h1 is the head at the upstream end of the link, h2 is the head at the downstream end of the link and qLast is the last flow value in the link. If any of these conditions are true then rho = 1.0 and the value of A and R are the values Amid and Rmid, respectively. The next graph shows the relationship between Rho and the Froude Number.

The value of Awtd and Rwtd move from the midpoint of the link to the upstream end of the link as the Froude number increases from 0.5 to 1.0.

Conclusion: This change should make the solution more stable because there is no longer an oscillation between the St. Venant Equation A and R and the Normal Flow Equation A and R. Note: This was originally a Google Knol (which has be deprecated by Google).

SWMM5 on Wikiland and Wikipedia

Innovyze宣布全球支持EPANET和SWMM

Innovyze宣布全球支持EPANET和SWMM

突破性的舉措便於可持續水利基礎設施模型全球社區之間的技術轉讓

布魯姆菲爾德，科羅拉多州，美國，2015年3月31日

Innovyze，商業分析軟件和技術的智能基礎設施濕全球領先的創新者，今天宣布USEPA的旗艦全球支持  EPANET  和  SWMM  公共領域的軟件。通過提供其技術專長，  EPANET和  SWMM  社區，Innovyze是確保持續維護可持續的雨水，污水和供水系統的這些免費軟件模型。

可持續發展水利基礎設施模型應用於世界各地的規劃，分析，設計，和雨水，污水和飲用水配送管理的研究。  SWMM  可以模擬生成和流走，衛生流的傳輸，以及估計生產這種徑流風暴，衛生或聯合下水道相關的污染物負荷。隨著最近納入特定類型的綠色基礎設施低衝擊開發（LID）的水文性能控制模型可以用於同時考慮灰度的基礎設施的方法（例如，管道，隧道，高速率處理），而且可能更符合成本效益的綠色基礎設施的方法（例如，雨水花園，透水鋪裝，雨水桶）來管理雨水。  EPANET  可以幫自來水公司保持和提高水通過他們的飲用水配送系統提供給消費者品質。它也可以用來計劃和提高系統的液壓性能。該模型可以協助管，泵和閥的位置; 上漿; 能量最小化; 火流分析; 脆弱性研究; 和操作人員培訓。總之，這些車型給各市的工具，幫助他們開發出減少未經處理的廢水的釋放，提高了安全飲用水的供應成本效益的綠色和灰色的水務基礎設施的選項。

“Innovyze是最先進的可持續發展水利基礎設施的建模研究的先驅和發展，“保羅F. Boulos，博士，BCEEM，NAE，Hon.D.WRE，Dist.D.NE，F.ASCE，總裁，首席運營官和Innovyze首席技術官說。“該公司的業界領先的地理信息系統為中心的  InfoWater  和  InfoSWMM  產品套件極大地擴展的模擬和分析功能EPANET  和  SWMM5 車型。持續維護  EPANET  和  SWMM  既是我們和全球水和廢水社區的重要作用。它確保這些產品為他們的用戶的有用性和壽命。我們很高興推出這一舉措，以進一步幫助維持世界濕的基礎設施和提供解決方案，這樣的具有挑戰性的問題，如氣候變化，水安全，並符合環保要求。

“我們希望不斷激發水建模世界各地，並為他們提供電動工具做到這一點啟發他們，使我們可以一起建立和維持彈性的水利基礎設施，幫助推動經濟，為大家創造一個更美好的世界的東西“。

有關這些產品的更多信息，請訪問Innovyze在  www.innovyze.com  並選擇“ EPANET “或” SWMM。“培訓課上EPANET  和  SWMM  將通過Innovyze大學，可 http://www.innovyze.com/education /。

價格和供貨
都  EPANET  和  SWMM  可直接從Innovyze網站免費下載  www.innovyze.com 。訪問  Innovyze用戶論壇 也可以尋求與全球水和廢水建模社區的答案和交換信息（http://forums.innovyze.com/）。

關於Innovyze Innovyze是專為滿足水/廢水公用事業，政府機構和工程組織在全球的技術需求，濕基建業務分析軟件解決方案的全球領先供應商。其客戶包括大部分的最大的英國，澳大利亞，東亞和北美城市中，最重要的事業上的五大洲，並ENR頂級設計公司。公司在北美，歐洲和亞太地區無與倫比的專業知識和辦事處，Innovyze連接組合最佳的一流的產品線賦權數千名工程師的競爭性規劃，管理，設計，維護，運營和持續高效，可靠的基礎設施系統，並為客戶的成功創造了持久的平台。欲了解更多信息，請致電Innovyze +1 626-568-6868，或訪問  www.innovyze.com。

Innovyze聯繫人：雷拉詹營銷總監和客戶服務經理Rajan.Ray@innovyze.com +1 626-568-6868

Innovyze Announces Worldwide Support for EPANET and SWMM

Groundbreaking Initiative Facilitates Technology Transfer of Sustainable Water Infrastructure Models Between Global Communities

Broomfield, Colorado, USA, March 31, 2015

Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced worldwide support for USEPA’s flagship EPANET and SWMM public domain software. By offering its technical expertise to the EPANETand SWMM communities, Innovyze is ensuring ongoing maintenance of these free software models of sustainable stormwater, wastewater, and water supply systems.

Sustainable water infrastructure models are used throughout the world for the planning, analysis, design, and research of stormwater, wastewater, and drinking water distribution management. SWMM can model the generation and transport of runoff and sanitary flows as well as estimate the production of pollutant loads associated with this runoff in storm, sanitary or combined sewers. With the recent inclusion of hydrologic performance of specific types of green infrastructure low impact development (LID) controls the model can be used to consider both grey infrastructure approaches (e.g., pipes, tunnels, high rate treatment), and potentially more cost-effective green infrastructure approaches (e.g., rain gardens, permeable pavement, rain barrels) for managing stormwater. EPANET can help water utilities maintain and improve the quality of water delivered to consumers through their drinking water distribution systems. It can also be used to plan and improve a system’s hydraulic performance. The model can assist with pipe, pump, and valve placement; sizing; energy minimization; fire flow analysis; vulnerability studies; and operator training. Together, these models give municipalities the tools to help them develop cost effective green and grey water infrastructure options that reduce the release of untreated wastewater and improve the availability of safe drinking water.

“Innovyze is a pioneer in cutting edge sustainable water infrastructure modeling research and development,” said Paul F. Boulos, Ph.D., BCEEM, NAE, Hon.D.WRE, Dist.D.NE, F.ASCE, President, COO and Chief Technical Officer of Innovyze. “The company’s industry-leading GIS-centric InfoWater and InfoSWMM product suites greatly expand on the simulation and analysis capabilities ofEPANET and SWMM5 models. Ongoing maintenance of EPANET and SWMM is important both to us and to the global water and wastewater communities. It ensures the usefulness and longevity of these products for their users. We are pleased to launch this initiative to help further sustain the world’s wet infrastructures and provide solutions to such challenging problems as climate change, water security, and environmental compliance.

“We hope to continue to inspire water modelers worldwide and provide them the power tools to do the things that inspire them so that together we can build and sustain resilient water infrastructures that help drive the economy and create a better world for everyone.”

For more information about these products, visit Innovyze at www.innovyze.com and select “EPANET” or “SWMM.” Training classes onEPANET and SWMM will be available through the Innovyze University, http://www.innovyze.com/education/.

Pricing and Availability
Both EPANET and SWMM can be downloaded free directly from the Innovyze web site at www.innovyze.com. Access to the Innovyze User Forums is also available to seek answers and exchange information with the global water and wastewater modeling communities (http://forums.innovyze.com/).

About InnovyzeInnovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water/wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasian, East Asian and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com.

Innovyze Contact:Rajan RayDirector of Marketing and Client Service Manager
Rajan.Ray@innovyze.com
+1 626-568-6868

SWMM 5 St Venant Solution - 3 Depths, 4 Cross Sectional Areas in a Link but one Mid Point Flow

SWMM 5 St Venant Solution - 3 Depths, 4 Cross Sectional Areas in a Link but one Mid Point Flow from Robert Dickinson on Vimeo.

SWMM 5 St Venant Solution - 3 Hydraulic Radius's, 5 Terms in the St Venant Equation from Robert Dickinson on Vimeo.

InfoSWMM 2D Infiltration Surfaces for Horton, Fixed and Constant 2D Mesh

InfoSWMM 2D Infiltration Surfaces for Horton, Fixed and Constand 2D Mesh Infiltration 

from Robert Dickinson on Vimeo.

New Import of Tags from SWMM 5 to InfoSWMM and H2OMap SWMM

New Import of Tags from SWMM 5 to InfoSWMM and H2OMap SWMM

from Robert Dickinson on Vimeo.

20 Interesting Features of Innovyze H2OMap Sewer

Twenty interesting facts about H2OMap Sewer and an inverse color Map of the H2OMap Sewer Interface (Figure 1).  H2OMAP Sewer Sewer is a stand-alone GIS based program for use in the planning, design, analysis, and expansion of sanitary, storm and combined sewer collection systems. It is very good program if you like steady state analysis with peaking factors for manhole loading.

GIS Gateway, Import and Export of CSV and Shapefiles	Run Manager
Sewer Map based on MapInfo	Steady State Simulation
Bird’s Eye View	Design Simulation
Contouring and Annotation, Map Display of Input and Output Variables	EPS Simulation
Ten or More Unpeakable or Peakable Loads per Manhole	Input Data in the Attribute Browser
Point and Peaking Factor Loads for Steady State	Output Parameters in the Attribute Browser
Two Pass Solution with Adjusted Depth and Adjusted Velocity on the 2nd  Pass	Advanced Force Main Iterative Solution for complex Hazen Williams Force Main  Modeling, Optional Stormwater and RTK modeling
DB Tables with DB Queries	Modified Muskingum – Cunge  Numerical  Solution
Scenario, Facility Manager, Batch Simulations	Control over the number of link segments and Flow Attenuation
Data Inference, Network Tracing Tools	Output Graphics, Complete Mass Balance Report and Output Gravity Main,   Force Main and  Manhole Reports

Figure 1.  Inverse color Map of the H2OMap Sewer Interface

What are typical Reynolds Numbers in SWMM5 or InfoSWMM

The Reynolds Number is not shown in SWMM 5 of  InfoSWMM but can easily be added to the SWMM 5 code as shown in Figure 3.  The equation for the Reynolds Number isNormally, as shown is Figure 1 the Reynolds number is is very high and is indicative of very turbulent flow based on typical flows, velocities and pipe diameters/hydraulic radius's in SWMM 5 (Figure 2).

Figure 1.  Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss, Typical values of the Reynolds Number.

Figure 2.  Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss. Where is is the DW value entered for a Force Main.

Figure 3.  Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss.

New GIS Gateway Features in InfoSewer and InfoSWMM

New GIS Gateway Features:

1. New comparison function to compare data of InfoSWMM or InfoSewer and GIS.

2. New logging function to allow users to track the data changes.

3. Allows users to save updated data to the selection sets

4. Allows users to save changed data to the selection sets

5. Map of Changed Features 

Image Features:

1. Create a Shapefile with Base GIS information or use GIS files directly
2. Compare Button to compare the current InfoSWMM or InfoSewer data to the GIS Layer
3. A log file is made with changed features
4. A selection set is made of Updated Facilities
5. A selection set is made of New Facilities
6. Clear Map to Clear the Changed Facilities Ma

Options in GIS GateWay

An Implicit-Explicit (IMEX) Picard Scheme and Adaptive Time Stepping Algorithm Applied to the Hydraulic Calculations in SWMM 5

SWMM5 and EPANET Import and Export into Innovyze Products InfoSWMM, H2OMap SWMM., InfoWater, H2OMap Water, InfoMaster, InfoSewer

We are proud that @Innovyze is a winner of @Esri #EsriEPC Award announced here by Jack Dangermond in 2015

Jack Dangermond kicking off #esriepc plenary session pic.twitter.com/gntSlYy1Is
— Rajan Ray (@InnovyzeRaj) March 8, 2015

Congratulations to all of the 2015 EPC Award Winners! We are honored and thankful to @Esri for the award. #EsriEPC pic.twitter.com/wpZuZs13XI
— GISi(@gisincorporated) March 8, 2015

Grateful for @Esri's recognition and honored to represent @Innovyze in accepting the #EsriEPC Partner Award from Jack pic.twitter.com/WTuOBsMxLh
— RajanRay (@InnovyzeRaj) March 8, 2015

A collage of LID Types in InfoSWMM and InfoSWMM Sustain along with the Process Layers

A collage of LID Types in InfoSWMM and InfoSWMM Sustain along with the Process Layers pic.twitter.com/ePtQPrg3sp
— Robert E Dickinson (@RDickinson) March 6, 2015

SWMM5 or SWMM 5 or InfoSWMM LID GIF of all LID GI Controls for @Boonsri @Innnovyze pic.twitter.com/V89gpnZght
— Robert E Dickinson (@RDickinson) March 7, 2015

Comprehensive Sewer Collection Systems Analysis Slide Show

An experimental GIF without any Slide Controls

Innovyze Releases InfoSWMM Sustain for Comprehensive Urban Stormwater Treatment and Analysis

Press Room | Products | News | Events | The Company

Innovyze Releases InfoSWMM Sustain for Comprehensive Urban Stormwater Treatment and Analysis

New Software Lets Stormwater Management Professionals Determine Optimal BMP Combinations at Various Watershed Scales Based on Cost and Effectiveness

Broomfield, Colorado, USA, March 3, 2015 — Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the worldwide release of InfoSWMM Sustain. Designed in response to the needs of watershed and stormwater engineering professionals, this power tool lets users develop, evaluate, and select optimal best management practice (BMP) combinations at various watershed scales on the basis of cost and effectiveness. It can be effectively used to evaluate complex decisions about green infrastructure selection and placement, performance, and costs for meeting desired flow and water quality targets. InfoSWMM Sustain is a comprehensive geocentric decision support system created to facilitate optimal selection and placement of BMPs and low impact development (LID) techniques at strategic locations in urban watersheds. It can accurately model any combination of LID controls, such as porous permeable pavement, rain gardens, green roofs, street planters, rain barrels, infiltration trenches, and vegetative swales, to determine their effectiveness in managing stormwater and combined sewer overflows. Such capabilities can greatly assist users in developing cost-effective and reliable implementation plans for flow and pollution control aimed at protecting source waters and meeting water quality goals. It does so by helping users answer the following questions: How effective are BMPs in reducing runoff and pollutant loadings? What are the most cost-effective solutions for meeting water quality and quantity objectives? And where, what type, and how extensive should BMPs be? By seamlessly integrating ArcGIS 10.x with SWMM 5.1, InfoSWMM Sustain greatly expands on the USEPA SUSTAIN software to provide critically needed support to watershed practitioners at all levels in developing stormwater management evaluations and cost optimizations to meet their program needs. The software can automatically import any SWMM 5.1, InfoSWMM or InfoWorks ICM (exported to SWMM 5.1), model, then evaluate numerous potential combinations of BMPs to determine the optimal combination to meet specified objectives such as runoff volume or pollutant loading reductions. Both kinematic wave and full dynamic wave flow routing models are fully supported. Among its many vital applications, InfoSWMM Sustain can be effectively used in developing TMDL implementation plans, identifying management practices to achieve pollutant reductions under a separate municipal storm sewer system (MS4) stormwater permit, determining optimal green infrastructure strategies for reducing volume and peak flows to combined sewer systems, evaluating the benefits of distributed green infrastructure implementation on water quantity and quality in urban streams, and developing a phased BMP installation plan using cost effectiveness curves. “With InfoSWMM Sustain, we are extending our success in the smart network modeling marketplace to address the specific needs of stormwater management professionals and their engineering consultants,” said Paul F. Boulos, Ph.D., BCEEM, NAE, Hon.D.WRE, Dist.D.NE, F.ASCE, President, COO and Chief Technical Officer of Innovyze. “It performs very sophisticated hydrologic and water quality modeling in watersheds and urban streams, and enables users to determine optimal management solutions at multiple-scale watersheds to achieve desired water quality objectives based on cost effectiveness. It also gives users the power tool they need to maximize water quality benefits, minimize stormwater management costs and combined sewer overflows, and protect the environment and public health. We are very proud to offer this groundbreaking new power tool to our clients.” Pricing and Availability InfoSWMM Sustain for InfoSWMM is available by subscription worldwide. A current InfoSWMM license is required. For the latest information on the Innovyze Subscription Program, visit www.innovyze.com or contact your local Innovyze Channel Partner.

Hybrid Learning at Innovyze

Hybrid Learning at Innovyze 1. Help Files with links to Blogs, Forums and Videos 2. Support Emails/Calls with Support linking to Blogs and Videos 3. Blogs, Innovyze and Other Blogs 4. Forums for all of our products including SWMM5 and EPANET 5. Twitter/LinkedIn 6. YouTube and Vimeo in Help Files and as Youtube and Vimeo Online Videos

Hybrid Learning at Innovyze