Fluid Dynamics
Fatigue screening methods according ASME BPV Code Webinar
When do you need to perform a fatigue analyses according ASME BPVC? This webinar explains the screening methods that are provided in ASME-VIII – Div 2.
23 June 2022
When do you need to perform a fatigue analyses according ASME BPVC? This webinar explains the screening methods that are provided in ASME-VIII – Div 2.
Coming weeks Dynaflow Research Group will host a webinar series around the use of the stress envelope for FRP stress analysis. In this webinar series
Seawind have developed with early partners Offshore Wind Plant layouts and is applying for sea area concessions in the Mediterranean Sea sector. The Mediterranean Sea
Dynaflow performed an pulsation analysis study for a client where a silencer check was required to dampen the pulsations generated by a rotary lobe blower.
Piping models that you produce are not 100% accurate. To make sure that uncertainties in design do not immediately result in failures in your piping
Dynaflow Research Group has released a new online course: FEPipe Essentials. The objective of this course is to give FEPipe users a strong understanding of
On February 9th, Edwin Schimmel, project engineer at Dynaflow Research Group will join a session of EngineeringTrainerTV: “Fiberglass and Steel Piping: Differences in Engineering”. Together
The J-integral Approach in Elastic-Plastic Fatigue Analysis by Tammo Dukker In a fatigue analysis one would like to investigate the susceptibility of a structural component
Last month Dynaflow co-presented a graduate course: “Practical Introduction to Parallel Programming”. The course was organized by the chair on Multiscale Engineering Fluid Dynamics at
Geothermal wells – European sponsored GRE-GEO project: Development of a corrosion-free fiberglass composite well casing as an alternative for a steel casing. As part of
June 9th Dynaflow will join Hexagon PPM’s Industry Insight with Stressman Engineering. Our lead software engineer Mark Groen will join this event to discuss the
In samenwerking met R-Vent hebben wij afgelopen week de webinar: “Hoe visualiseer ik de verspreiding van aerosolen in mijn gebouw?” gepresenteerd. VentiScan heeft een speciaal
Dynaflow Research Group and Hexagon PPM join forces for a series of webinar sessions. In three webinar live sessions we will elaborate how leveraging BOSfluids
The new version of the PRG Finite Element Analysis (FEA) software suite has been released. PRG 2021 contains FEPipe v15.0, NozzlePRO v15.0 and FEATools v15.0
Screw compressors generate pulsations similar to other displacement machines such as reciprocating pumps and compressors. The pulsation suppression devices for screw compressors are also called
” Samen staan we sterker” is een veelal gebruikte slogan sinds dat de Corona-pandemie onder ons is. VentiScan werd opgericht met de gedachte een bijdrage
This year we launched our new service to support schools and other buildings in The Netherlands to optimise their room ventilation against Corona spreading. By
GEOTHERMICA launches Project “Glass Fiber Reinforced Epoxy Casing System for Geothermal Application (GRE GEO)” Some of the main challenges in geothermal are corrosion and scaling.
Many industrial processes involve the transport of granular particles in flowing fluids. Simulation of these granular fluid flows is not trivial because of the different
Press Release Dynaflow Research Group is happy to announce that the European Geothermica project proposal “Glass Fiber Reinforced Epoxy Casing Systems for Geothermal Application” (GRE-GEO)
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
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 🕖 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
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Solving Vibrations In A Two-Phase Process Line Frank Bos Partner Get instant access Free. Recording + slide
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH Surge and dynamic stress analysis for an offshore wind farm using BOSfluids Mark Groen Software Lead Engineer
ON-DEMAND 🕖 25 MIN 🌏︎ ESPAÑOL Integración de BOSfluids con Caesar II y otros programas de tensión de tuberías Uri Peker Engineer Get instant
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH BOSfluids integration with CAESAR II and other pipe stress programs Ryan Metcalf Manager USA Get instant access
Why Pulsation Risks Warranted Attention Before Operation The compression station was designed to increase and maintain operating pressure on a natural gas piping network, overcoming friction losses. It has four (3+1) two-stage centrifugal compressors with 19-blade impellers, running at a rated speed of 5750 RPM (95.8 Hz) within a range
A Commissioning Failure That Sent Debris Downstream During commissioning of a natural gas compressor station, pieces of fibreglass fabric, mineral wool and steel wire were found throughout the downstream system. A small amount of mineral wool was also found in the surge valve. Inspection showed that the mineral wool found
Compressor Piping Under Combined Marine and Process Loading The compressor module was located roughly halfway along the hull. Its connected piping had to accommodate thermal and pressure loads, wind loads, accelerations from wave-driven barge rocking and relative displacements from hull deformation. These loads could produce pipe deflection and bending and
Cyclic Thermal Duty in a Gas Treatment Air Cooler An air-cooled heat exchanger for a gas treatment plant is subjected to a varying inlet temperature. In the analysed winter case, which has the largest temperature variation, the fluid cycles between 7.5°C and 288°C during each 100-minute cycle. The first part
Consolidating Gas Flow onto a Single Metered Line A platform gas metering station has three parallel metering lines, two active and one spare. The modification replaces the orifice-type flow meter in the most eastern line with an ultrasonic (US) flow meter and directs the complete gas flow through that line.
Nitrogen Skid Stress Verification Requirement A manufacturer produces a nitrogen metering skid for a project. As a result of a client performance requirement, the existing design had to be verified by stress analysis. The skid is a straight pipe configuration with valves and flow meters, supported approximately 1000 mm above
An axisymmetric finite element analysis checked the flued flange expansion joint of a fixed-fixed tubesheet reboiler for low cycle fatigue, high cycle fatigue and primary stress to ASME Section VIII Division 2, at mean (26 mm) and minimum (22 mm) wall thickness. The largest low cycle fatigue stress range was
The station model of the Winksele Compressor Station, to be built in Belgium, was divided into two models with some mutual overlap, a compressor model and a filter model, each covered by a separate stress report. A third report covers the gas air coolers as model C, an add-on to
An additional separator was installed in Phase 2 of a cluster project and was to be connected to the existing lines through a modified above-ground (A/G) manifold. The manifold also connects to an existing buried (underground, or U/G) line. The analysis applied pressures of 100 / 225 Barg and temperature
A combined CAESAR II model of a gas metering skid and its structural steel frames was assessed against ASME B31.3 (2006). The piping stresses were below the allowables, the steel stresses were within the allowable limits for the sustained and expansion load cases, and several bolt shear loads exceeded the
Multi-Mode Metering Skid with Undefined Connecting Piping The unit assessed was a 24-inch, 300# ethane metering skid. Gas can be routed through a normal operating line (line 1), a testing and maintenance line (line 2), two flow control lines (lines 3 and 4) and a bypass. No more than one
CAESAR II stress analysis of 13 critical sections of a buried GRP fire water system, to ISO 14692, expected no problems for the underground piping under pressure and temperature loads. High stresses occurred in vertical above-ground GRP pipes where the pipe is vertically restrained; in section D, guide and rest
Seventeen underground GRE firewater subsystems at a degassing station were analysed in CAESAR II for three load cases, hydrotest, operational and sustained, to ISO 14692. It may be concluded that, upon implementation of the recommendations, the static pipe stresses are acceptable and the flange loads are moderate. Underground GRE Firewater
Thirteen buried GRE firewater subsystems were modelled in CAESAR II and assessed to ISO 14692 for hydrotest, operating and sustained load cases. On implementation of the recommendations, static pipe stresses are acceptable and flange loads are moderate. The buried glass-reinforced epoxy (GRE) piping in the firewater system upgrade at a
The main firewater line for a new oil terminal jetty is made from glass reinforced epoxy (GRE) pipe. It starts at the onshore transition between underground and above-ground pipe, where it connects to steel lines, and follows a jetty about 1.5 km long. A firefighting platform about one third of
Static stress analysis of two buried GRE firewater subsystems in CAESAR II covered three load cases with a design pressure of 13.4 barg and a maximum design temperature of 40 °C. The stress analysis report, a preliminary issue, records wall thickness increases and polystyrene on five isometrics and concludes that,
Nine underground GRE firewater systems, 77 stressed isometrics in total, were analysed in CAESAR II against the ISO 14692 allowable stress envelopes, with soil-pipe interaction modelled to the American Lifelines Alliance (2001) soil model. Modifications included a support bracing, polystyrene foam, NBR gasket stiffness limits and additional laminate for a
A CAESAR II static stress analysis of a buried GRE firewater network against ISO 14692 found 18 bends and 10 tees overstressed in the original design. In the modified models, all stress points are within the ISO 14692 envelopes for the sustained, operational and hydro load cases, provided the system
An underground storage station was being expanded with an additional compressor and a third injection well cluster, and the existing firewater package was being extended as part of the project. Two jockey pumps pressurise the system. When a blowout alarm is raised, the deluge valves open and the main firewater
A buried GRE fire water ring was assessed in CAESAR II against the ISO 14692 allowable stress envelope. Static stresses stayed within the envelope for all load cases after additional lamination at nine bends, and the settlement analysis set a 4 MPa axial margin on the operational or occasional envelope.
A new unit was added to an existing gas complex, and the firewater ring main was extended to serve it. Three sets of four 3-inch hydrant valves were modelled, twelve hydrants in total. Each hydrant is required to produce a minimum of 1452 l/min at 7.0 barg, and the hydrant
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