News & Insights from Dynaflow Research Group

Software

Upcoming webinar

Analysis of Surge problems with CAESAR II and BOSfluids 5.4 The webinar Together with Hexagon PPM, DRG is co-hosting a free webinar on Analysis of

Read More »
alba_b3_news
Fluid Flow

Alba B3 platform installed

Alba B3 platform installed – DRG performed surge analysis It is always nice to see your computer models becoming reality! DRG performed a surge analysis

Read More »
Fluid Flow

Hades used in PhD Huan He

Titel: Computational Modelling of Particle Packing in Concrete By Huan He Physical particle packing is becoming a hot topic in concrete technology as more and

Read More »
Dynaflow Research Group

Hades used with Porosity of Concrete

Titel: Porosity of Concrete – Morphological Study of Model Concrete By Jing Hu Porosity of Concrete has developed a comprehensive methodological framework for characterizing geometrical

Read More »
Fluid Flow

Hades used in PhD Jianjun Zheng

Titel: Mesostructure of concrete Stereological analysis and some mechanical implications By Jianjun Zheng On the mesoscale, concrete can be considered as a composite material consisting

Read More »
CFD flow in a finger-type slug catcher

CFD analysis of a finger-type slug catcher header

Introduction The flow in the header of a finger-type slug catcher is analyzed using CFD techniques. In order to design a high-performance finger-type slug catcher, it is necessary that the fluid flow in the inlet header manifold is evenly distributed among the different fingers. Analysis A detailed flow analysis by

Learn More »

Naptha Offloading Jetty Pipeline

Combined Pressure Surge and Dynamic Stress Analysis Introduction At BASF Antwerp a steel pipeline was under construction, this pipeline was to be used for the offloading of naphtha from ships arriving at a jetty. The pipeline is 1.6 km long with several pipe bridges. The jetty contains Emergency Release Couplers

Learn More »
Chemical Industry

Cyclohexane Unloading Line

Combined Pressure Surge and Dynamic Stress Analysis Introduction In the harbor of Antwerp an unloading line was being commissioned for use with cyclohexane. This line features two ship loading arms, located at the end of a jetty. From the loading arms, the unloading line runs towards two storage tanks. Transient

Learn More »
Chemical Industry

LNG Bunkering Line to Fuel Ferry Ships

Pressure Surge Analysis Introduction An LNG-plant was planning to construct an additional LNG bunkering line that will be used to fuel ferry ships in Stavanger. Both a main and booster pump are used to achieve the flow through the 600-meter-long pipe line connecting to the ships through a loading arm,

Learn More »
Fiberglass, fiberglass piping
Cooling Water

GRP Cooling Water System

Feasibility Study Introduction A cooling water system consists of a large underground branched GRP piping system connecting to steel branch continuations at each U/G-A/G interface. In the detailed design phase the fitness for purpose of the GRP part of the system will be demonstrated by the GRP supplier by means

Learn More »

Tuning a piping model to vibration measurements

Vibrations had been seen in the piping of a reciprocating compressor plant and the operator of the plant was worried that fatigue cracks could occur. Therefore a study was conducted by DRG to determine how the vibration levels could be reduced and whether they were leading to stress levels exceeding

Learn More »

Pulsation dampener: computational vs analytical

Accumulators are used to reduce pressure pulsations from reciprocating pumps by adding volume to the piping. In the preliminary design stage the size and position of the accumulator needs to be determined before the piping design is completed. The performance of the system including the pump and connected piping is

Learn More »

Pulsation analysis: Important difference in solution methods

Commercially available pulsation analysis software uses either a transient (time domain) or harmonic (frequency domain) solver. A time domain solver is more accurate for determining the pulsation amplitude, but solving in the frequency domain can be orders of magnitude faster. Which solver should you use and why is there a

Learn More »
Fluid Flow

API 674 acoustical study, differences DA1 and DA2

When purchasing or delivering a reciprocating pump an API674 pulsation study might be required. The API 674 describes two different design approaches in Annex C (2010 edition). This post describes the most important differences between the design approaches and the pro’s and con’s between the two approaches. Regardless of the

Learn More »
Fiberglass Engineering

Third-party review fiberglass EPC project Oman

Third-party review of fiberglass EPC project in Oman Dubai, 2 March 2017 DRG is probably best known for their large involvement in all facets of fiberglass design and engineering. It ranges from component design such as fittings and elbows for suppliers, qualification of the fiberglass products, engineering calculations as well

Learn More »
fiberglass, frp inspections, frp
Fiberglass Engineering

Infield inspections Oman

Infield inspections Oman – enhancing processes & performance July 2016 The link between assessment and performance As engineers, we are happiest when we are out in the field making our customers’ projects run more smoothly. DRG’s niche is the link between assessment and performance, and two projects in Oman recently

Learn More »