Deltares is pleased to announce the availability of WANDA 4.6. This release marks the seventh release of the WANDA 4 series, and includes many improvements including:
- New matrix solver and numerical improvements, results in significant performance gains for Wanda models with multiple pipe components or many pipe elements.
- Improvements to T- and Y-junction components, results in more stable behaviour in steady state and significant performance improvement.
- Updated user interface to the latest version of iGrafx Flowcharter. (WANDA-3410, WANDA-3347, WANDA-3340)
For more information, please read our Release notes & Errata page
Wanda 4.6 can be downloaded from the Deltares Download Portal.
This is minor bugfix release that addresses the "Invalid procedure call or argument 5 0" error when starting Wanda after installing August 2019 Windows 10 updates (WANDA-3362). See Release notes & Errata for more details on the release.
This is an important bug fix release that addresses an issue in the Wanda Heat module. Due to an incorrect interpretation of the heat capacity, the resulting temperature change is not calculated correctly by Wanda. Users of the Wanda Heat module are advised to upgrade to this version as soon as possible.
This is minor bugfix release that addresses the "Overflow 6 0" error on Windows 10 Fall Creators Update. See Release notes & Errata for more details on the release.
This is an important bug fix release that addresses the possible undefined behavior found in a few components (see Errata announcement WANDA 4.5.1 for more information). It also addresses a few other small bugs in the user interface, mostly related to the upgrade process of cases made in earlier versions of WANDA (see Release notes & Errata for a complete list).
On February 16th a configuration error was found in Wanda 4.5.1 that could lead to undefined behavior in the following components:
- Air valve (Vent & Vent2Leg)
- Pump when using drive type "Motorfreq"
- Cross (both merging and dividing flow)
- Fast filling pipe
- Orifice
The undefined behavior typically results in a crash, but as the possibility of wrong results cannot be ruled out, we suggest not using Wanda 4.5.1 for calculations involving the above components. On Tuesday the 21st of February the release of Wanda 4.5.2 is scheduled to resolve these issues.
Deltares is pleased to announce the availability of WANDA 4.5. This release marks the sixth release of the WANDA 4 series, and includes many improvements including:
- The presence of short (8dot3) filenames is no longer required.
- Writing output data is faster, which is most noticeable when running simulations on network storage.
- Stability improvements to the Y-junction, the Vent2Leg, and the fast filling pipe.
Wanda 4.5 can be downloaded from the Deltares Download Portal.
UNESCO-IHE Institute for Water Education offers a two-week short course on the design of the hydropower water conduit system. These provides theoretical understanding and practical insights to the geotechnical, hydraulic and structural design of the power waterway in global, but also in its particular parts. The course deals with parameters needed for optimal design, theoretical design background and practical design examples using the WANDA software.
Date and location: 13-24 March 2017, Delft, Netherlands
For more information: http://www.unesco-ihe.org/hydropower-water-conduit-design
Deltares is pleased to announce the availability of WANDA 4.4. This release is the fifth release of the WANDA 4 series and includes several new features and improvements.
New features include:
- Option to show flow direction in pipes.
- Moving average control component. Support for simple, cumulative, weighted or exponential averages.
- Numerical stability improvements to the cavitation model, and the X-, T- and Y-junctions.
- WANDA Locks domain (beta); modelling salt intrusion through shipping locks.
- Liquid-to-Locks and Liquid-to-Heat converters. This allows you to use all available Liquid components in a Heat or Locks models.
- And several other new features and fixes!
Wanda 4.4 can be downloaded from the Deltares Download Portal.
Deltares presented 4 papers, and on top of that 4 other groups presented papers including WANDA modelling results. These papers were authored by Innovyze Australia, Royal Haskoning DHV and research groups from TU Graz and Trondheim. We are proud of such an international presence of WANDA at this conference.
Full Proceedings are available via BHR Group: confx2@bhrgroup.co.uk.
- Zwan, S. van der, Heinsbroek, A., Tukker, M., Karney, B., Bergant, A., Water hammer software performance analysis and validation via a web-database, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 149 – 155).
- Madin, B., Austin, R., Case studies of the design and performance of one-way surge tanks in pumped water and wastewater pipelines, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 463 – 476).
- Glover, P., Air valves/vacuum breakers; a modelling nightmare, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 523 – 535).
- Heinsbroek, A., Karney, B., Pressure surges with “zero flow” in a fire fighting reticulation system, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 549 – 556).
- Zwan, S. van der, Alidai, A., Leruth, P.H., Pothof, I.W.M., Integration of emergency control systems in the anti-surge design of large transmission schemes, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 557 – 565).
- Mecksenaar, L., Balkema, S., Arpadzic, E., Vermaas, E., Efficient assessment of transmission mains and control systems by means of numerical modelling, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 567 – 577).
- Zwan, S. van der, Toussaint, M., Alidai, A., Pothof, I.W.M., Leruth, P.H., Integration of emergency control systems in the anti-surge design of large transmission schemes, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 713 – 727).
- Richter, W., Zenz, G., Vereide, K., Hydraulic design and modelling of large surge tanks, Proceedings 12th Int. Conference on Pressure Surges, 18 – 20 November 2015, Dublin, Ireland (pp 745 – 759).
The recordings of the latest webinar (Wanda system characteristics and Pump energy module) is available online:
Check out our webinar wiki page for more recordings!
Deltares is pleased to announce the availability of Wanda 4.3. This release is the fourth release of the Wanda 4 series and includes several new features and improvements.
New features include:
- Two new Heat components: Heat pump (including accurate modelling of the cooling liquid in the internal system of the pump) and heat exchanger with limited temperature variations
- Improved heat transport algorithm for the heat pipe.
- the Tap with initial pressure and DeltaP for reopen. This allows for an easier modelling of drinking water distribution networks.
- Restart From... functionality.
- Significant performance improvements when simulation large Wanda models
The new setup is available from the Downloads & Patches wiki page
Deltares has released Wanda version 4.2.2. This version is a bugfix release with minor improvements.
This release includes the following fixes and improvements:
- Fixed crash when importing EPANET model to Wanda Heat
- Fixed issue when using multiple (>100) RDFile and WRFile components
- Solved a crash with the Herschel Bulkley friction calculation unders some circumstances
- Moved Control system evaluation to be calculated directly after steady simulation (only relevant for TAMTAM application
- Solved issue where initial position of valves was not communicated to control system for initial state <> position
Deltares has released Wanda version 4.2.1. This version is a bugfix release with minor improvements.
This release includes the following fixes and improvements:
- Improvements to logging facilities, preventing problems in IT environments with security restrictions
- Resolved an issue where the VENT component (airvalve) would become stuck in an incorrect state under some circumstances.
- Resolved an issue where Wanda could not read input files due to long paths + filenames
- Resolved an issue where the inclined airvessel discharge would round down to 0 for low discharges.
New functionality
Added the 'Liquid node with conditional head'. This node allows you to specify the head (similar to the Hnode with initial head), but only when necessary.
When a part of the system is isolated during the steady state computation, the head in that part of the system is not determined by the system. The user can use the H-node with initial Head to solve this problem. However, when using the parameter script, the user cannot switch between certain types of nodes. This node allows the system to specify the head at it's location, but uses a user-specified head when the system can't do this.
These courses are dutch only.
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In het najaar 2013 organiseert Deltares de volgende cursussen:
- Cursus Hydrodynamica van Leidingsystemen Deel 1 - Dynamisch Gedrag op 16, 17 en 18 september a.s. (herhaling van 8, 9 en 10 april jl)
- Cursus Hydrodynamica van Leidingsystemen Deel 2 - Pompen en Appendages op 30 september en 1 en 2 oktober a.s.
Beide cursussen worden gegeven door de deskundigen van de afdeling Industrial Hydrodynamics van de unit Hydraulic Engineering.
Het doel van de cursus Dynamisch Gedrag is om de deelnemer zoveel inzicht te verschaffen zodat hij/zij in staat is het hydraulisch gedrag van een leidingsysteem te begrijpen, eenvoudige waterslag berekeningen te maken en mogelijke waterslag voorzieningen en/of procedures te beoordelen. Hiertoe worden de hydraulica van een leidingsysteem en het verschijnsel waterslag behandeld, maar ook de invloed van bijvoorbeeld terugslagkleppen en lucht in leidingen. Naast het overdragen van kennis zal er tijdens de cursus ruim gelegenheid zijn om onderling ervaringen uit te wisselen.
Het doel van de voortgezette cursus Pompen en Appendages is om de deelnemer zoveel inzicht te verschaffen dat hij/zij in staat is om een hydraulisch verantwoorde klep- en pompkeuze te maken. Naast het overdragen van kennis zal er tijdens de cursus ruim gelegenheid zijn om onderling ervaringen uit te wisselen. Deze cursus werd voorheen in 2 delen aangeboden onder de namen cursus Pompen en cursus Kleppen. Voorkennis met betrekking tot hydraulisch gedrag in een leidingsysteem en waterslag, zoals o.a. behandeld in de introductie cursus Dynamisch Gedrag, is gewenst.
De cursussen zijn bestemd voor iedereen die in de praktijk te maken heeft met het transporteren en distribueren van vloeistoffen in gesloten leidingsystemen en het ontwerpen van dergelijke systemen.
Denk hierbij aan medewerkers van ingenieursbureaus, bedrijfsbureaus en de beheerders van leidingsystemen en procesinstallaties, maar bijvoorbeeld ook aan fabrikanten en leveranciers van pompen, afsluiters en terugslagkleppen. Het gewenste opleidingsniveau is HBO.
Meer informatie over het complete cursusaanbod van Deltares is te vinden op www.deltaresacademy.nl.
Wij stellen het op prijs als u ook uw collega's op de hoogte wilt brengen van ons cursusaanbod.
U kunt zich voor deze cursus inschrijven via het elektronische inschrijformulier voor de cursus Dynamisch Gedrag en de cursus Pompen en Appendages.