• Breake Horsepower

    Good morning I need some help about the best way to calculate pumps inertia. I have de power of the pump (65kw) and the power of the motor (90kW), I also have the speed of the pump 1480rpm. But for calculate the inertia with Bentley Hammer V8i I need…

  • Check Valve

    Hi everone again Now i'm trying to understand the pump attributes, the unique that i haven't understood reserve spin, so if i check this box, according to help file, mean a check valve next to the pump, so if i uncheck this box there isn't a check…

  • Configuring TCV relative closure patterns for EPS

    Applies To Product(s): WaterGEMS, WaterCAD Version(s): V8i, CONNECT Edition Area: Modeling Original Author: Scott Kampa, Bentley Technical Support Group Problem Is it possible to set up a control…

  • Creating Formula-Based User Data Extensions

    Product(s): WaterGEMS, WaterCAD, StormCAD, SewerCAD, SewerGEMS, CivilStorm, HAMMER, PondPack Version(s): CONNECT Edition, V8i SELECTseries 2 + Area: Calculations Overview The purpose of this technote is to briefly review the…

  • I-MODEL

    How to create i -model published and If any add-in is required then please provide the link.

  • Importing Demands From A Spreadsheet

    Applies To Product(s): WaterCAD, WaterGEMS Version(s): V8 XM, V8i, CONNECT Edition Area: Layout and Data Input Original Author: Jesse Dringoli, Bentley Technical Support Group Overview This…

  • Learning Resource Guide for users of OpenFlows FLOOD

    Product(s): OpenFlows TM FLOOD TM Version(s): Various Area: Help and Documentation The purpose of this article is to provide a list of resources for new and existing users of OpenFlows FLOOD. Please use these links to gain a…

  • Modeling a Connection to an Existing System

    Product(s): WaterGEMS, WaterCAD, SewerGEMS, SewerCAD Version(s): V8i, CONNECT Edition Area: Modeling Original Authors : Scott Kampa, Jesse Dringoli, Tom Walski Background If you are modeling only a portion of a larger…

  • Modeling a Pump Start-Up Transient Event in HAMMER

    Applies To Product(s): HAMMER Version(s): CONNECT Edition, V8i Area: Modeling Original Author: Jesse Dringoli, Bentley Technical Support Group Overview This TechNote describes the process to model a pump start…

  • Modeling a vertical pipe in HAMMER, WaterGEMS and WaterCAD

    Applies To Product(s): WaterGEMS, WaterCAD, HAMMER Version(s): CONNECT Edition, V8i Area: Modeling Original Author: Scott Kampa, Bentley Technical Support Group Problem Is it possible to…

  • Modeling Reference - Valve Closure

    Applies To Product(s): HAMMER, WaterGEMS, WaterCAD Version(s): V8i, CONNECT Edition Area: Modeling Original Author: Jesse Dringoli, Bentley Technical Support Group Overview This technote explains…

  • Troubleshooting ArcMap Integration

    Product(s): WaterGEMS, SewerGEMS, HAMMER Version(s): CONNECT Edition, V8i Environment: ArcMap Area: Installation Background This article provides common troubleshooting steps when encountering issues integrating WaterGEMS…

  • Troubleshooting the Network Unbalanced or Cannot solve network hydraulic equations user notification

    Product(s): WaterGEMS, WaterCAD Version(s): CONNECT Edition, V8i Area: Modeling Problem How can a user fix the WaterGEMS or WaterCAD error message " Network Unbalanced " or " Cannot solve network hydraulic equations ". "…

  • Using the Post Calculation Processor for statistical analysis of results

    Product(s): Bentley WaterGEMS, WaterCAD Version(s): CONNECT Edition, V8i Area: Output and Reporting Overview The purpose of this TechNote is to review the features and use of the Post Calculation Processor available in WaterGEMS…

  • Validity of Assumption of operating rule for different pumps

    Consider two cases: Case 1: Pump 1: GD2= 100 kg-m2; speed =1500 rpm Case 2: Pump 2: GD2= 500 kg-m2; speed =1500 rpm Question: If we consider the same operating rule for the two cases. How Hammer will compute the transient condition for the total…

  • WaterGEMS and WaterCAD General FAQs

    This is a list of articles containing general FAQs for Bentley WaterGEMS and WaterCAD products. To search within this page, press [Ctrl]+F. Import and Export How to export a selection set to shapefiles How to export model elements to shapefiles…

  • WaterObjects.NET - Extending the capabilities of your OpenFlows product

    Product(s): WaterCAD, WaterGEMS, HAMMER, StormCAD, SewerCAD, SewerGEMS, CivilStorm, PondPack Version(s): CONNECT Edition, V8i, V8 XM Area: Modeling What is Waterobjects.NET and what can I do with it? Waterobjects.NET is the…

  • What is the "Discharge Coefficient"?

    Applies To Product(s): WaterGEMS, WaterCAD, HAMMER Version(s): CONNECT Edition, V8i Area: Data Input/Model Creation Original Author: Jesse Dringoli, Bentley Technical Support Group Problem…

  • 关于hammer软件中水泵转动惯量的问题。

    1、最高效率点处的制动马力和电机功率的关系？ 2、hammer中输入的惯量（水泵和电机）是定义的转动惯量（mr2）还是飞轮矩（GD2）还是（mD2）? 3、按照以往计算应用经验，水泵厂家提供的电机和水泵的转动惯量能否直接使用，还是需要进行某种转换？

  • 水泵四象限曲线

    Hammer 中的水泵特性曲线（四象限曲线） 水泵的水力计算需要一个流量与水头关系的 “水泵定义”， 在水力计算的基础上进行水锤计算，还需要一个水泵特性曲线，及水泵的四象限曲线 （瞬时），一般水泵的特性是按比速来区分的，因此特性曲线也按比速来选择，选择比速则相当于选择了一组特性曲线见下所示： 水轮机的特性曲线， 反映了流量，水头，转速，效率，功率，出力的关系，四种运行状态一般用四像限曲线代表。 Hammer 提供了常用的比速范围内的标准曲线，用户也可以添加自定义的曲线。 Hammer…
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