Dynamics of Fluid Sloshing
Sloshing, a fascinating phenomenon, occurs when liquid moves within partially filled tanks, facilitated by sufficient free surface area. This effect is notably observed in marine transportation operations, posing a significant challenge to crack growth of the tanks. Excitingly, we’ve developed an impressive simulation in-house using #OpenFoam, shedding light on this complex phenomenon. And the CFD results […]
Psychrometric charts and dew points
Psychrometric charts are graphical representations of the thermodynamic properties of moist air. They provide a visual way to analyze and understand the relationships between temperature, humidity, and other properties of air. One important parameter represented on a psychrometric chart is the dew point. The dew point is the temperature at which air becomes saturated with […]
Structural Analysis: Small Deflection vs. Large Deflection
In the world of structural analysis, precision and efficiency are paramount. Let’s delve into the fascinating realm of small-deflection and large-deflection analysis methods, shedding light on how they differ and their importance. Small Deflection: We can use small deflection analysis when the deformations are small relative to the problem we are evaluating. The biggest challenge […]
ASME B31.3 Chapter IX Requirements
Understanding ASME B31.3 Chapter IX Requirements In the realm of engineering and design, adherence to standards is paramount for ensuring safety and efficiency. Let’s delve into the specific requirements outlined in ASME B31.3 Chapter IX, shedding light on key considerations for high-pressure fluid service systems: – System Specification: Owners must designate systems as “High Pressure […]
Subsea Blowout Preventer (BOP) Lowering
The delicate balance of lowering a Blowout Preventer (BOP) amidst the sea’s unforgiving waves and currents underscores several crucial aspects of offshore drilling operations: 1. Safety: Lowering a BOP is a critical operation in offshore drilling. The BOP serves as a last line of defense against uncontrolled well-blowouts. Navigating this process amidst challenging sea conditions […]
The mean stress effect
The mean stress effect: For a component subjected to cyclic stresses, the mean stress is the average stress of the maximum and minimum stress throughout the cycle. If the maximum and minimum stress are equal but with opposite direction, then mean stress will be zero. The mean stress effect is reducing the fatigue capacity due […]
Gas/liquid flow patterns in horizontal pipes
In horizontal pipes, the flow patterns of gas and liquid exhibit variations, typically classified into different regimes based on flow characteristics. Here’s an overview of the primary gas/liquid flow patterns in horizontal pipes: – Stratified Flow: This pattern involves the separation of gas and liquid phases into distinct layers. The liquid forms the bottom layer, […]
Understanding Flow Pattern Maps
Flow pattern maps play a pivotal role in visualizing and comprehending the complex dynamics of gas/liquid flow in horizontal pipes under different operating conditions. These maps serve as valuable tools for engineers and researchers, providing a representation of the prevailing flow regimes. Key Components of Flow Pattern Maps: 1.- Flow Regime Zones: Flow pattern maps […]
Main types of stress in piping
Pipes are simple in shape, but highly complex in behavior. When performing pipe stress analyses, also known as flexibility analyses, it is important to understand the various types of stresses that the applied loads and pressure give. For example, the pressure generates Hoop stress and axial tension in the pipe. Loads from weight, earthquake, thermal, […]
2022 Edition ASME B31.3
2022 Edition ASME B31.3: A Paradigm Shift in Stress Range Factor During the 1950s, Markl conducted a series of tests that have since become the foundation of calculation procedures in modern ASME B31 (and other) piping codes. Today, stress calculations of majority of piping codes are largely based on intensified nominal stresses (using stress intensification […]
