Fluid Flow
Dynaflow Research Group launches VentiScan
We are proud to announce the launch of our new service to support schools and other buildings in The Netherlands to optimise their room ventilation
25 August 2020
We are proud to announce the launch of our new service to support schools and other buildings in The Netherlands to optimise their room ventilation
Use DRG cloud licenses: Work more effective from home! During these Covid-19 times many people are working remotely. Software programs which rely on physical devices
Static equipment and piping are designed for a certain design life, often 25 years. During this prolonged use, the material may deteriorate even when the
A detailed Surge analysis leads to a more economic system design compared to a Joukowsky estimate Performing a surge analysis is important to study the
Dynaflow Research Group has a long history in solving advanced flow problems using Computational Fluid Dynamics (CFD) techniques. CFD is applied to a wide range
Safety Factors in Fiberglass Engineeringby Mick Bouman (Fiberglass Engineering) For a pipe system or an individual component an engineer must always verify whether the strength
Dynaflow Research Group regularly hosts technical webinars. These webinars, which are FREE to watch, are recorded and made available online through our YouTube channel. A
Starting February 11th 2020, our Software Director Erik Jan Lingen together with Matthias Möller from the Faculty of Mathematics will present a course (WI4265TU) on
Upcoming week February 11-13, Dynaflow hosts its latest Fiberglass Engineering training course. During this course participants receive a good understanding of the GRP specific mechanical
Dynaflow Research Group (DRG) has recently been accredited with the quality management standard NEN-EN-ISO 9001:2015. Today, Niels Bos from Dynaflow Research Group received the official ISO9001 certificate from Vincent
There has been a demand for Online FEPipe and NozzlePRO training courses for many years. We are happy to announce that next month we will
For the last couple of months DRG is expanding its training activities online in association with the e-learning platform EngineeringTrainer.com. Our newest online course regards
Besides classroom courses taught at our offices in The Netherlands, The Middle-East or at client premises, we are expanding our training portfolio with online courses.
DRG hosting the ISO/TC 138/SC 6 and WG’s meetings Zoetermeer, 17, 18 and 19 September DRG is hosting the 3-day ISO/TC 138/SC 6 and WG’s
Tuning a beam type FEA model to vibration measurements from the piping of a reciprocating compressor plant Vibrations had been seen in the piping of
DRG presents at the Dutch OpenFOAM User’s Group 2018 DRG is actively involved in the research and application for Computational Fluid Dynamics (CFD) and Discrete
API 674 Acoustical study, some differences between design approach 1 (DA1) and design approach 2 (DA2) When purchasing or delivering a reciprocating pump an API674
Recently in the fall of 2017 a renewed edition of the ISO14692, the governing standard for fiber reinforced plastic piping, was officially released. The objective
B31J: The answer to Markl’s 1950’s flexibilty factors The new 2017 ASME B31J Up to recent years most pipe flexibility analyses and more specifically Caesar
DFC2017 keynote: Simulation requirements for oil and gas transport in pipeline systems Presentation by Prof. dr. ir. Ruud A.W.M. Henkes (Shell Projects and Technology/Delft University
DFC2017 abstracts: Efficient Industrial Conjugate Heat Transfer in HELYX v3 Presentation by Dr. Eugene de Villiers PhD. MSc. DIC (Engys UK) DRG is proud to
Table of Contents A Good GRP Code Covers a Large Variety of Products and Loading Conditions A robust Glass Reinforced Plastic (GRP) piping code must
Thermal bowing is a structural phenomenon that arises when a temperature gradient exists across the cross-section of a pipe or vessel. In typical pipe design,
Table of Contents As the demand for flexible, energy-efficient, and reliable compressor operation grows—particularly in hydrogen and process gas applications—our clients increasingly turn to stepless
Table of Contents Multiphase flow is a recurring challenge in process engineering, where multiple fluid phases—such as gases, liquids, or solids—interact within a single flow
In the chemical and energy industries, liquid products such as LNG, ammonia, or naphtha are commonly transferred between ships and onshore storage tanks. These transfers
In the engineering domain, accurately simulating transient events in pipeline systems is critical, particularly for essential safety mechanisms such as firewater systems. These systems, typically
Introduction Pressure vessels are critical components in a wide range of industries, including power generation, petrochemical processing, and industrial manufacturing. These vessels are designed to
When Theodor von Kármán first discovered vortex shedding in 1911, he likely had no idea how pivotal his work would become for modern engineering, particularly
In a previous article, we introduced the risks and design considerations of repurposing an existing natural gas compressor system for hydrogen. That discussion focused on
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH Acoustically Induced Fatigue in Gas Filled Piping Systems Using BOSfluids Remco Boere Senior Software Engineer Get instant access
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Simulation Strategies and Practical Application for Vapour Cavity Formation Dr. Ir. Erik Jan Lingen Software Director Get
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Fundamentals, Failure Mechanisms, and Engineering Consequences of Vapor Cavity Formation Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Bridging the Gap: From NFPA 15 Steady-State Design to Transient Surge Analysis in Tank Terminals Uri Peker
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Support Stiffness Effects on Mechanical Natural Frequencies in Reciprocating Compressor Piping Systems Thijs Krijger Project Engineer Get
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Beyond hydraulics: a practical guide to fire water analyses with BOSfluids Dr. Ir. Erik Jan Lingen Software
ON-DEMAND 🕖 3 SESSIONS x 45 MIN 🌏︎ ENGLISH Complete Pulsation Analysis Using BOSpulse Tim Gebraad Software Lead Engineer Marienne Faro Software Sales Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Getting the Timing Right: Why Time Step Size Is Critical In Surge Analysis Dr. Ir. Erik Jan
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH Protecting Tank Terminal Assets Through Surge and FFS Analyses Thijs Krijger Project Engineer Katrine van Overhagen Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Choosing the right GRE piping standard: a comparison of ISO 14692 and ASME NM.2 Edwin Schimmel Project Engineer
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH How Stepless Capacity Control Shapes Flow and Pulsations Thijs Krijger Project Engineer Get instant access Free. Recording
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Water Hammer Analysis & Mitigation in Pipeline Systems with BOSfluids Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Water Hammer Analysis & Mitigation in Pipeline Systems with BOSfluids Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Understanding, Modelling, and Managing Thermal Bowing using CAESAR II David Tickner Senior Engineer Get instant access Free.
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Using CFD for optimizing multiphase process engineering Bart van der Zalm Senior Engineer Get instant access Free.
DRG CONFERENCE – 35TH ANNIVERSARY 🌏︎ ENGLISH Innovations that Change the Engineering Industry Get instant access Free. Recording + slide deck available Event Description
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Fatigue Assessment According to ASME B&PV VIII Div.2 Lukas Bajarunas Senior Software Engineer Get instant access Free
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Fiberglass Piping Stress Envelope According to ISO 14692 using CAESAR II Edwin Schimmel Project Engineer Get instant
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH Understanding and Mitigating AIV and FIV in Modern Plant Design David Tickner Senior Engineer Get instant access
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH How To Predict Stresses From Slug Flows Daniëlle de Jong Senior Engineer Get instant access Free recording
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Building models using the import PCF file feature & model verification In BOSfluids Thijs Krijger Project Engineer
Floating Production Storage and Offloading (FPSO) units play a crucial role in offshore oil and gas production. A critical component of these systems is the compressor skid, which compresses natural gas for processing or export. This case study focuses on the pulsation and vibration analysis of a three-stage reciprocating compressor
This case study examines a reciprocating compressor system operated by a leading energy company, used for compressing natural gas. The system consists of three identical compressor units, each with two stages (suction and discharge pulsation suppression devices and connected piping), supplying gas to a common header. This system had been
This case study examines the cooling water and foam systems located in two jetties (Jetty A and Jetty B) of a major industrial facility. These systems, critical for fire protection, have experienced significant issues related to water hammer effects and structural integrity. The primary objectives of this study are to
The client is operating multiple ammonia plants with similar cooling water systems made of GRE. Last year, failures were discovered in buried GRE components—specifically, an elbow and a tee—at one of the older plants. A surge analysis conducted by Dynaflow Research Group revealed that these failures were due to an
A new firewater (FW) system is being designed for a Green Hydrogen Elements facility. The plant spans a large area of approx. 2 x 1.5 km and contains multiple critical areas. The piping material is Fiber Reinforced Plastic (FRP). The main firewater ring is of DN250 and DN300 piping. The
A client designed a foam piping system that covers the three tanks in a tank pit in the harbor. The firewater system is directly connected to the general water supply. The main pipeline passes through the foam house where the water is mixed with foam. A manifold divides the mixture
A manufacturer of pulsation dampers requested Dynaflow Research Group to verify the performance of one of its discharge silencer designs in combination with a double rotary lobe gas blower by means of a pulsation study. The scope of the study consisted of a connecting straight pipe spool and the silencer
A fatigue analysis has been done for a reactor feed pressurization drum. The vessel operates under cyclic pressure ranging from 25 psig to 200 psig (1.7 – 13.8 bar), with a design life of more than 5 million cycles. Additionally, it is subjected to 200 full-range cycles from atmospheric pressure
Pressure surges ocurr in piping systems whenever there are sudden changes in flow resistance from steady operation. Surges can cause significant damage, also at locations far removed from where they are initiated. For large or complex piping systems, this can make their impact challenging to predict without specialist analysis. Dynaflow
Hydrogen generation equipment has an inherent risk for internal explosions, posing an issue to safety. The hydrogen piping and equipment are required to withstand internal explosions by limiting the damage to deformation. Although this disqualifies the component for future use, safety is not compromised. The objective was to find a
A District Cooling System (DCS) fits the sustainability challenges that our society is challenged with. It provides cooling capacity from a central facility; chilled water is distributed from this central facility to multiple buildings through a network of underground pipelines. The central cooling facility works more power efficient and it
Shell is building a biofuels facility at the Shell Energy and Chemicals Park Rotterdam, the Netherlands (Pernis Refinery) that will have an annual production capacity of 820,000 tonnes of biofuel. The biofuels facility is expected to start production in 2024. The project is ranked at position 7 in the top
Why Pay Attention to a Line Filling Process? During a start-up/line filling process a wave front of fluid progresses it’s way through the empty* parts of the line. However, when this front is required to change direction through bends the change in momentum generates an unbalanced force, this unbalanced force
What is Hogging and Sagging and what are the effects on piping? When waves pass over the length of a ship, the ships profile rises and bows following the peaks and troughs of said wave due to the changes in bouyancy along the length. This effect is known as hogging
For an ammonia plant in Western Australia, cooling water is supplied by a Sea Cooling water (SCW) as well as a Fresh Cooling Water (FCW) system. Both piping systems were constructed out of fiberglass material with pipe diameters of up to 72”. Heat exchangers acts as the interface between the
Dynaflow Research Group has performed a root-cause analysis for a cooling water system that had 3 recent leakages. The failures were in 10” pipe and 18” pipe made of fiberglass material. Dynaflow Research Group reviewed the material data, engineering analyses and failure info and determined the root-causes of the failures.
Dynaflow Research Group provided consultancy services to finalize the construction of cooling water (CW) system of a chemical plant in the Texas, USA. The construction was interrupted for a period of 2 years. The CW system was constructed out of fiberglass material. A full design review was performed for the
Air Liquide and BASF want to capture and store the CO2 of five factories at the BASF site in Antwerp. Dynaflow was requested to perform a feasibility of the CO2 transport line that takes the CO2 from the five factories at the BASF site and transports it outside the BASF
The geothermal installation Trias Westaland, with presently 2 geothermal doublets, produces 40MW of sustainable thermal energy that is supplying heat to 54 greenhouses and several hundreds of households. Geothermal wells typically produce gas along with the hot saline water that is pumped up from large depths. Therefore, most geothermal production
DRG provides a complete set of engineering and consultancy services for Fiberglass piping (FRP) networks. This includes detailed engineering studies, product development, factory audits, site supervision, FEED support, third-party review for EPC projects, and root-cause investigation of failures. DRG recently completed a third-party review project for the construction of a
Introduction The two-phase flow in the finger pipe of a finger-type slug catcher is analyzed using CFD techniques. When the fluid flow in the inlet header manifold is evenly distributed among the different fingers, it is necessary to obtain stratified flow to promote liquid separation. Analysis The two-phase flow in
DYNAFLOW RESEARCH GROUP (“DRG”) Enters into Reseller Agreement with Quality Professional Software (“QPS”) RIJSWIJK, The Netherlands – January 24, 2024 (Dynaflow Research Group BV) –
Dynaflow Research Group and Seawind Ocean Technology announce collaboration focusing on technical readiness of floating offshore wind applications in the Mediterranean Sea. This landmark partnership