News & Insights from Dynaflow Research Group

Seawind
Consulting

Windfarm Layout Optimisation

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

Read More »
Training

Parallel Programming July 2021

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

Read More »
Fiberglass Engineering

Start of New Research Project GRE GEO

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.

Read More »
Fluid Flow

Granular Fluid Flow Simulations

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

Read More »
Fiberglass Engineering

European Geothermica project awarded

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)

Read More »
CFD Analysis and Optimization of Tube Cooker Designs

CFD Analysis and Optimization of Tube Cooker Designs

This project presents a detailed technical assessment of two vertical tube cooker (shell-and-tube heat exchanger) designs using Computational Fluid Dynamics (CFD). The analysis was conducted for Tanis, a manufacturer of candy production lines, with the objective of verifying and improving the thermal performance of the tube cooker, a critical process

Learn More »
Finite Element Analysis of a Hairpin Heat Exchanger

Finite Element Analysis of a Hairpin Heat Exchanger

Dynaflow Research Group was asked to conduct a comprehensive finite element (FE) analysis on a custom hairpin heat exchanger. The primary objective was to assess the exchanger’s structural integrity under demanding cyclic loading conditions, focusing on fatigue life and ratcheting behavior in compliance with the ASME Boiler and Pressure Vessel

Learn More »
CFD Two-Phase Mixing Flow Analysis of a 60 m³ H₂S Bioreactor

CFD Two-Phase Mixing Flow Analysis of a 60 m³ H₂S Bioreactor

Effective mixing in bioreactors is essential for maximizing mass transfer, homogenizing chemical species, and ensuring uniform biological activity. The client undertook a computational fluid dynamics study in collaboration with Dynaflow Research Group to evaluate the performance of a 60 m³ hydrogen sulfide (H₂S) bioreactor, with a specific focus on mixing

Learn More »
Vibration Analysis and Mitigation for Compressor C801 Discharge Piping

Vibration Analysis and Mitigation for Compressor C801 Discharge Piping

Excessive vibrations were detected in the discharge piping of compressor C801 at BP Rotterdam. The observed vibration frequencies corresponded to the compressor’s running speed and its harmonics, indicating the compressor as the primary excitation source. This prompted an in-depth technical investigation due to concerns over the integrity and reliability of

Learn More »
Stress Assessment of the Q8 Terminal Compressor Station

Stress Assessment of the Q8 Terminal Compressor Station

Building directly on the preceding site verification and model augmentation phase, the objective of the stress assessment was to ensure the mechanical integrity and regulatory compliance of the entire piping network under all anticipated operational, test, and environmental scenarios. The assessment was carried out in accordance with ASME B31.3 and

Learn More »
terminal compressor station, site visit, pulsation studies

Site Visit Results and Model Augmentation for the Compressor Station

Following the initial review of the pulsation and vibration analysis for the Q8 Terminal compressor station, a detailed site visit was conducted to resolve ambiguities in the as-built system configuration. The purpose of this site visit was to verify support functionality, assess current installations, confirm actual piping layouts, and gather

Learn More »
Dynamic stress response of the Ærfugl MEG Injection Skid

Dynamic stress response of the Ærfugl MEG Injection Skid

The Ærfugl MEG (Monoethylene Glycol) injection skid, engineered by Hitec Products AS for deployment on the Skarv FPSO, is a critical system designed to inject MEG into subsea flowlines, thereby preventing hydrate formation. Following the comprehensive pulsation analysis, which established compliance with API 674 DA2 pulsation criteria through targeted mitigation

Learn More »
Pulsation Analysis of the Ærfugl MEG Injection Skid

Pulsation Analysis of the Ærfugl MEG Injection Skid

Following the successful verification of the static mechanical integrity of the Ærfugl MEG injection skid in Phase 1, Hitec Products AS commissioned Dynaflow Research Group to undertake a detailed pulsation analysis in accordance with API 674 DA2. The aim was to address the risks posed by pressure pulsations generated by

Learn More »
Ærfugl MEG injection skid consisting of a suction (blue), discharge (green) and pressure safety line (red), for transport load cases

Static Pipe Stress Analysis for Ærfugl MEG Injection Skid

The Ærfugl MEG (Monoethylene Glycol) injection skid, designed and produced by Hitec Products AS for installation on the FPSO (Floating Production Storage and Offloading) vessel in the Skarv field, is a mission-critical component in the field’s flow assurance strategy. To ensure mechanical integrity and operational reliability, a comprehensive static pipe

Learn More »
ANSYS flange model
FEA

Analysis of Large Dissimilar Bolted Flanges

For a coil-wound liquified natural gas (LNG) heat exchanger, an existing 66” and new 72” bolted flange joint have been analysed and reviewed for mechanical loading and multiple thermal load cases in accordance to the 2013 edition of ASME VIII Div.1 and Div.2  by Dynaflow Research Group (DRG) using ANSYS

Learn More »
modelling aspects
Fiberglass Engineering

Pipe Stress Analysis for a Firewater GRE system

An existing fiberglass firewater piping system was expanded to enhance its capacity, necessitating validation for the newly added components. The client, engaged in the RDCG Rotterdam capacity growth project, specializes in producing renewable fuels through the chemical conversion of vegetable and animal oils. The firewater system at this facility is

Learn More »
Stable vortex with higher flow velocities
BOSfluids

Mixing Flow, Surge and Pipe Stress Analysis

Our client was looking to repurpose a liquid transport and storage system for a different fuel. The new fuel blend has a larger viscosity and density. Heat tracing is applied to the pipe line to reduce the liquid viscosity during transport. The new fuel is pumped into a storage tank,

Learn More »
CFD

Multiphase CFD Study of Separation Tank

Our client reported multiple cracks at weld locations on a separation tank. These cracks are suspected to be caused by dynamic flow effects from the mixed inflow of acid gas and liquid. To address this issue, the client requested a Computational Fluid Dynamics (CFD) analysis to quantify the forces exerted

Learn More »
cfd, computational fluid dynamics
CFD

Multiphase Flow & Vibration Analysis of PSV Discharge

A client approached Dynaflow with concerns about potential dynamic loads on their piping system during the activation of a Pressure Safety Valve (PSV) protecting a degasser. During PSV opening, both gas and liquid (methane and water) are discharged together, creating complex flow conditions that could lead to transient forces and

Learn More »
compressor analysis. pulsation analysis, vibration analysis
Fluid Flow

Pulsation and Vibration Analysis of Compressor System

A client operates a reciprocating compressor at their terminal facilities, which is integral to their gas processing operations. During routine operations, excessive vibrations were observed within the system, raising concerns regarding equipment reliability, safety, and compliance with relevant industry standards. The compressor system in question features a 6-cylinder design with

Learn More »
oil and gas, pulsation and vibration, compressor
BOSpulse

API 618 DA3 Pulsation and Vibration Study for Compressor

The Tesoro Salt Lake City Refinery initiated a project to reduce the sulfur content in its products, necessitating modifications to the piping system on the discharge side of compressors K-701A/B. These changes prompted concerns about excessive pulsations and vibration-induced stresses, particularly as no previous pulsation study had been conducted. The

Learn More »